2008 Cadillac STS Owners Manual

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rain or snow. To clean the emblem/lens, wipe the surface with a soft cloth. After cleaning the emblem/lens, engage the Adaptive Cruise Control. If you are unable to do so, see your dealer/retailer. Headlamps The exterior lamp control is located in the middle of the turn signal/multifunction lever. O(Exterior Lamp Control): Turn the control with this symbol on it to operate the exterior lamps. The exterior lamp control has four positions: O(On/Off): Turn the control to this position to turn off all lamps and automatic lighting features including Daytime Running Lamps (DRL) and IntelliBeam™. This is a momentary switch that springs back to the AUTO position when released. An AUTOMATIC LIGHTS ON message appears on the DIC when automatic lights are enabled or an AUTOMATIC LIGHTS OFF message appears on the DIC when the automatic lights are disabled. AUTO (Automatic): Turn the control to this position to put the headlamps in automatic mode. AUTO mode, turns the exterior lamps on and off depending upon how much light is available outside of the vehicle. Due to the switch design, the automatic lights may be disabled even if the control is in the AUTO position. To enable automatic lighting do any of the following: Turn the headlamp control from AUTO to off and release the switch. It returns back to the AUTO position by itself. Turn the headlamp control from the parking lamp position to AUTO. Turn the headlamp control from the headlamp position to AUTO. To disable automatic lighting do any of the following: Turn the headlamp control from AUTO to off and release the switch. It returns back to the AUTO position by itself. Turn the headlamp control from AUTO to the parking lamp position. Turn the headlamp control from AUTO to the headlamp position. Disabling automatic lighting disables the automatic headlamp operation, DRL, and IntelliBeam™ High-Beams (if the vehicle has them). 3-33 (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) ;(Parking Lamps): Turn the control to this position to turn on the parking lamps together with the following: (cid:129) Sidemarker Lamps Taillamps License Plate Lamps Instrument Panel Lights 5(Headlamps): Turn the control to this position to turn on the headlamps, together with the previously listed lamps and lights. IntelliBeam™ Intelligent High-Beam Headlamp Control System If your vehicle has this feature, be sure to read this entire section before using it. IntelliBeam™ is an enhancement to the vehicle’s headlamp system. Using a digital light sensor located on the back of the rearview mirror, this system turns the high-beam headlamps on and off according to surrounding traffic conditions. The IntelliBeam™ system turns the high-beam headlamps on when it is dark enough, there is no other traffic present, and the IntelliBeam™ system is enabled. Turning On and Enabling IntelliBeam™ AUTO 3(IntelliBeam™ On/Off): Press and release the IntelliBeam™ button on the inside rear view mirror. The IntelliBeam™ indicator on the mirror turns on. Once the system has been turned on, it remains on each time the vehicle is started. Additionally, the IntelliBeam™ system must be enabled. To enable the IntelliBeam™ System, turn the exterior lamp control to AUTO, with the turn signal/multifunction lever in its neutral position. The High-Beam On Light appears on the instrument panel cluster when the high-beams are on. See Highbeam On Light on page 3-72. Your vehicle has variable intensity high-beams. The high-beam indicator on the instrument panel cluster comes on as soon as the high-beams start to come on, and remains on until the high-beams have completely turned off. All vehicles that have IntelliBeam™, however, quickly turn off the high-beams if the system detects the sudden presence of vehicle lights ahead. Driving with IntelliBeam™ IntelliBeam™ only activates the high-beams when driving over 20 mph (32 km/h). 3-34 (cid:129) (cid:129) (cid:129) The high-beam headlamps remain on, under the control of IntelliBeam™, until any of the following situations occur: The system detects an approaching vehicle’s headlamps. The system detects a preceding vehicle’s taillamps. The outside light is bright enough that high-beam headlamps are not required. The high-beam headlamps are manually turned on or you use the ﬂash-to-pass feature. See Headlamp High/Low-Beam Changer on page 3-9 and Flash-to-Pass on page 3-13. When either of these conditions occur, the IntelliBeam™ feature is temporarily disabled until the high-beam stalk is returned to the neutral position. If either of these conditions occur and IntelliBeam™ already has the high-beam headlamps on, the IntelliBeam™ feature is disabled and the IntelliBeam™ light in the mirror turns off. The exterior lamp control is turned to any setting except AUTO. When this occurs, IntelliBeam™ is disabled until the control is turned back to the AUTO position and the AUTOMATIC LIGHTS ON message displays on the DIC. The IntelliBeam™ system is turned off at the inside rearview mirror. The vehicle’s speed drops below 15 mph (24 km/h). IntelliBeam™ may not turn off the high-beams if the system cannot detect other vehicle’s lamps because of any of the following: The others vehicle’s lamp(s) are missing, damaged, obstructed from view, or otherwise undetected. The other vehicle’s lamp(s) are covered with dirt, snow and/or road spray. The other vehicle’s lamp(s) cannot be detected due to dense exhaust, smoke, fog, snow, road spray, mist, or other airborne obstructions. (cid:129) Your vehicle’s windshield is dirty, cracked, or obstructed by something that blocks the view of the IntelliBeam™ light sensor. (cid:129) Your vehicle’s windshield is covered with ice, dirt, haze, or other obstructions. (cid:129) Your vehicle is loaded such that the front end of the vehicle points upward, causing the IntelliBeam™ sensor to aim high and not detect headlamps and taillamps. (cid:129) You are driving on winding or hilly roads. You might need to manually disable or cancel the high-beam headlamps by turning the low-beam headlamps on, if any of the above conditions exist. 3-35 (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) (cid:129) Cleaning the IntelliBeam™ Light Sensor The light sensor is located on the inside of the vehicle at the back of the rearview mirror. Clean the light sensor window, periodically, using glass cleaner on a soft cloth. Gently wipe the sensor window. Do not spray glass cleaner directly on the surface of the sensor window. Disabling and Resetting IntelliBeam™ at the Rearview Mirror IntelliBeam™ can be disabled and reset to the original factory setting by using the controls on the inside rearview mirror. AUTO 3(IntelliBeam™ On/Off): To disable the system, press this button on the inside rearview mirror. The IntelliBeam™ indicator turns off and does not come back on until the IntelliBeam™ button is pressed again. When IntelliBeam™ has turned on the high-beams, pull or push the high-beam stalk. This disables IntelliBeam™ and the IntelliBeam™ indicator on the rearview mirror turns off. To re-enable IntelliBeam™, press the IntelliBeam™ button on the mirror. A different sensitivity setting is available for dealer diagnostics. This is done by pushing and holding this button for 20 seconds until the light ﬂashes three times. If you accidentally activate this, the vehicle’s setting automatically resets each time the ignition is turned off and then on again; otherwise, refer to the text above for resetting the system. 3-36 Wiper Activated Headlamps This feature activates the headlamps and parking lamps after the windshield wipers have been in use for about six seconds. For this feature to work, automatic lighting must be enabled. See Headlamps on page 3-33 for additional information. When the ignition is turned off, the wiper-activated headlamps will immediately turn off. They will also turn off if the windshield wiper control is turned off. Headlamps on Reminder A warning chime will sound if the exterior lamp control is left on in either the headlamp or parking lamp position and the driver’s door is opened with the ignition off. See Lights On Reminder on page 3-72 for additional information. Daytime Running Lamps (DRL) Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. DRL can be helpful in many different driving conditions, but they can be especially helpful in the short periods after dawn and before sunset. Fully functional daytime running lamps are required on all vehicles ﬁrst sold in Canada. The DRL system will make the turn signal lamps come on when the following conditions are met: It is still daylight and the ignition is on, the automatic lights are enabled, and the transmission is not in PARK (P). When DRL are on, only the front turn signal lamps will be on. No other exterior lamps will be on when the DRL are being used. The instrument panel will not be lit. When the automatic lights are enabled and it is dark enough outside, the DRL will turn off and the low-beam headlamps will turn on. When it is bright enough outside, the low-beam headlamps will go off, and the DRL will turn back on. If the vehicle is started in a dark garage, the automatic headlamp system will come on immediately. Once the vehicle leaves the garage, it will take about one minute for the automatic headlamp system to change to DRL if it is light outside. 3-37 (cid:129) (cid:129) (cid:129) Light Sensor The light sensor for the DRL is located on top of the instrument panel. If the sensor is covered, it will read dark, and the exterior lamps may come on when they are not needed. During that delay, the instrument panel cluster may not be as bright as usual. Make sure the instrument panel brightness lever is in the full bright position. See Instrument Panel Brightness on page 3-41. To operate your vehicle with the DRL off, turn the exterior lamp control off and then do one of the following: Turn the exterior lamp control to the parking lamp position. Turn the exterior lamp control to the headlamp position. Turn the exterior lamp control from AUTO to off and back to AUTO. An AUTOMATIC LIGHTS OFF message will appear on the DIC, showing that automatic lighting has been disabled. See DIC Warnings and Messages on page 3-80. The regular headlamp system should be turned on when needed. 3-38 (cid:129) (cid:129) (cid:129) Fog Lamps Use the fog lamps for better vision in foggy or misty conditions. The fog lamp controls are located on the turn signal/multifunction lever. -(Fog Lamps): The band with this symbol is used to turn the fog lamps on and off. The parking lamps must be on for the fog lamps to work. To turn the fog lamps on, turn the fog lamp band on the lever up to the dot and release it. The band will return to its original position. To turn the fog lamps off, turn the fog lamp band up to the dot and release it. The band will return to its original position, and the fog lamps will turn off. If the high-beam headlamps are turned on, the fog lamps will also turn off. They will turn back on again when you switch back to low-beam headlamps. Some localities have laws that require the headlamps to be on along with the fog lamps. Twilight Sentinel® Twilight Sentinel® can turn your lamps on and off for you. A light sensor on top of the instrument panel makes the Twilight Sentinel® work, so be sure it is not covered. With Twilight Sentinel® the following will happen: (cid:129) When it is dark enough outside, the front turn signal lamps (DRL) will go off, and the headlamps and parking lamps will come on. The other lamps that come on with headlamps will also come on. (cid:129) When it is bright enough outside, the headlamps will go off, and the front turn signal lamps (DRL) will come on, as long as the exterior lamp switch is in the off position. 3-39 If you start your vehicle in a dark garage, the automatic headlamp system will come on immediately. Once you leave the garage, it will take about one minute for the automatic headlamp system to change to DRL if it is light outside. During that delay, the instrument panel cluster might not be as bright as usual. Make sure the instrument panel brightness control is in full bright position. See Instrument Panel Brightness on page 3-41 for more information. You can idle the vehicle with the lamps off, even when it is dark outside. First set the parking brake while the ignition is in OFF/ACCESSORY. Then start the vehicle. The lamps will stay off until the parking brake is released. Twilight Sentinel® also provides exterior illumination as you leave the vehicle. If Twilight Sentinel® has turned on the lamps when you turn off the ignition, the lamps will remain on until: The exterior lamp switch is moved from off to the parking lamp position. (cid:129) A delay time that you select has elapsed. See Vehicle Personalization on page 2-60 to select the delay time that you want. You can also select no delay time. If the ignition is turned off with the exterior lamp switch in the parking lamp or headlamp position, the Twilight Sentinel® delay will not occur. The lamps will turn off as soon as the switch is turned off. As with any vehicle, the regular headlamp system should be turned on when needed. Exterior Lighting Battery Saver If the parking lamps or headlamps have been left on, the exterior lamps will turn off about 10 minutes after the ignition is turned off. This protects against draining the battery in case you have accidentally left the headlamps or parking lamps on. The battery saver does not work if the headlamps are turned on after the ignition is turned off. If you need to leave the lamps on for more than 10 minutes, use the exterior lamp control to turn the lamps back on. 3-40 (cid:129) Instrument Panel Brightness Base Level Shown, Uplevel Similar Press the center knob on the DIC control panel until the knob pops out. Then turn the knob clockwise to brighten the lights or counterclockwise to dim them. If the knob is turned completely clockwise, the interior lamps turn on. Entry Lighting The entry lighting system turns on the reading and dome lamps and the backlighting to the exterior lamp control when a door is opened or if you press the remote keyless entry transmitter unlock button. If activated by the transmitter, the lighting will remain active for about 25 seconds. The entry lighting system uses the light sensor; it must be dark outside in order for the lamps to turn on. The lamps turn off about 25 seconds after the last door is closed. They will dim to off if the ignition is on, or immediately deactivate if the power locks are activated. Parade Dimming This feature prohibits dimming of the instrument panel displays and backlighting during daylight hours when the key is in the ignition and the headlamps are on. This feature operates with the light sensor and is fully automatic. When the light sensor reads darkness outside and the parking lamps are active, the instrument panel displays can be adjusted by turning the instrument panel brightness knob. See Instrument Panel Brightness on page 3-41 for additional information. 3-41 Reading Lamps The reading lamps are located on the overhead console. These lamps come on automatically when any door is opened. For manual operation, press the button next to each lamp to turn it on or off. If the reading lamps are left on, they automatically shut off 10 minutes after the ignition has been turned off. Battery Load Management The battery load management feature is designed to monitor the vehicle’s electrical load and determine when the battery is in a heavy discharge condition. During times of high electrical loading, the engine may idle at a higher revolutions per minute (rpm) setting than normal to make sure the battery charges. High electrical loads may occur when several of the following are on: headlamps, high beams, fog lamps, rear window defogger, the climate control fan at high speeds, heated seats and engine cooling fans. If the battery continues to discharge, even with the engine idling at a higher rpm setting, some electrical loads will automatically be reduced. When this occurs, the rear window defogger may take slightly longer to clear the glass and the fan may cut back to a lower speed. For more battery saving information, see “Battery Saver Active Message” under DIC Warnings and Messages on page 3-80. Electric Power Management The vehicle has Electric Power Management (EPM) that estimates the battery’s temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery. When the battery’s state of charge is low, the voltage is raised slightly to quickly put the charge back in. When the state of charge is high, the voltage is lowered slightly to prevent overcharging. If the vehicle has a voltmeter gage or a voltage display on the Driver Information Center (DIC), you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed. 3-42 The battery can be discharged at idle if the electrical loads are very high. This is true for all vehicles. This is because the generator (alternator) may not be spinning fast enough at idle to produce all the power that is needed for very high electrical loads. A high electrical load occurs when several of the following loads are on: headlamps, high beams, fog lamps, rear window defogger, climate control fan at high speed, heated seats, engine cooling fans, trailer loads, and loads plugged into accessory power outlets. EPM works to prevent excessive discharge of the battery. It does this by balancing the generator’s output and the vehicle’s electrical needs. It can increase engine idle speed to generate more power, whenever needed. It can temporarily reduce the power demands of some accessories. Normally, these actions occur in steps or levels, without being noticeable. In rare cases at the highest levels of corrective action, this action may be noticeable to the driver. If so, a Driver Information Center (DIC) message might be displayed, such as Battery Saver Active or Service Battery Charging System. If this message is displayed, it is recommended that the driver reduce the electrical loads as much as possible. See DIC Warnings and Messages on page 3-80. Inadvertent Power Battery Saver This feature is designed to protect your vehicle’s battery against drainage from the interior lamps, trunk lamp, glove box lamp, or the garage door opener. When the ignition is turned off, the power to these features will automatically turn off after 10 minutes (three minutes if a new car has 15 miles (24 km) or less). Power will be restored for an additional 10 minutes if any door is opened, the trunk is opened or the courtesy lamp switch is turned on. Head-Up Display (HUD) {CAUTION: If the HUD image is too bright, or too high in your ﬁeld of view, it may take you more time to see things you need to see when it is dark outside. Be sure to keep the HUD image dim and placed low in your ﬁeld of view. For vehicles with the Head-Up Display (HUD), it projects some of the driver information that appears on the instrument panel cluster onto the windshield. 3-43 The information may be displayed in English or metric units and appears as an image focused out toward the front of your vehicle. To change from English to metric units, see DIC Operation and Displays on page 3-74. The HUD consists of the following information: (cid:129) Speedometer Turn Signal Indicators (cid:129) High-Beam Indicator Symbol (cid:129) Driver Shift Control Transmission Feature, see Automatic Transmission Operation on page 2-32 (cid:129) Check Gages Icon (cid:129) Adaptive Cruise Control Features and Indicators (If Equipped), see Adaptive Cruise Control on page 3-20 Forward Collision Alert Features and Indicators (If Equipped), see Forward Collision Alert (FCA) System on page 3-10 (cid:129) Radio Features 3-44 United States version shown, Canada similar Be sure to continue scanning your displays, controls and driving environment just as you would in a vehicle without HUD. If you never look at your instrument panel cluster, you may not see something important, such as a warning light. Under important warning conditions, the CHECK GAGES message will display in the HUD. View your Driver Information Center (DIC) for more information. (cid:129) (cid:129) The HUD controls are located to the left of the steering wheel on the DIC control panel. ~ (Head-Up Display): Press to change the position of the HUD on the windshield. To adjust the brightness of the HUD image, press the knob on the center of the DIC control panel in until it pops out and then pull the knob until is completely extended. Turn the knob clockwise or counter-clockwise to increase or decrease the brightness. Turn the knob all the way to the left to turn off the HUD image. To adjust the HUD so you can see it properly, do the following: 1. Adjust the seat to a comfortable driving position. If you change your seat position later, you may have to re-adjust your HUD. 2. Start your engine and press the top or bottom of the HUD button to center the HUD image in your view. The HUD image can only be adjusted up and down, not side-to-side. 3. Turn the knob on the DIC control panel to adjust the brightness of the HUD image. The brightness of the HUD image is determined by the light conditions in the direction your vehicle is facing and where you have the HUD set. If you are facing a dark object or a heavily shaded area, your HUD may anticipate that you are entering a dark area and may begin to dim. Polarized sunglasses could make the HUD image harder to see. 3-45 As light shines out from the HUD, it is possible for light to shine back in. In rare occurrences, when the sun is at a speciﬁc angle and position, the sun’s rays can shine back into the HUD. When this occurs, the display device within the HUD will be temporarily illuminated. The event will end when the vehicle’s angle to the sun changes. Clean the inside of the windshield as needed to remove any dirt or ﬁlm that reduces the sharpness or clarity of the HUD image. To clean the HUD, spray household glass cleaner on a soft, clean cloth. Wipe the HUD lens gently, then dry it. Notice: When cleaning, be careful not to scratch the HUD or camera lenses. Do not spray glass cleaner directly on the HUD lens because the cleaner could leak inside the unit and cause damage. If the ignition is on and you cannot see the HUD image, check to see if: (cid:129) Something is covering the HUD unit. The brightness is adjusted properly. The HUD image is adjusted to the proper height. (cid:129) Ambient light in the direction your vehicle is (cid:129) A fuse is blown. See Fuses and Circuit Breakers facing is low. on page 5-117. 3-46 The windshield is part of the HUD system. See Windshield Replacement on page 5-55. The following Adaptive Cruise Control message may appear in the HUD: The PEDAL APPLIED ACC OVERRIDE message indicates that you are pressing your foot on the accelerator pedal and overriding Adaptive Cruise Control. While this is being done, the system will not automatically apply the brakes. Once you remove your foot from the accelerator pedal, Adaptive Cruise Control will return to normal operation and be able to apply the brakes, if needed. An Adaptive Cruise Control active symbol, alert symbol or vehicle ahead symbol may also appear. See Adaptive Cruise Control on page 3-20 for more information. Accessory Power Outlet(s) Your vehicle is equipped with accessory power outlets. The outlets can be used to plug in electrical equipment such as a cellular telephone, CB radio, etc. Your vehicle has one outlet in front of the center console, one in the center console lid and there may be an additional outlet in the rear of the center console. Your vehicle may have a small cap that must be removed to access the accessory power outlet. If it does, when not using the outlet be sure to cover it with the protective cap. (cid:129) (cid:129) Notice: Leaving electrical equipment plugged in for an extended period of time while the vehicle is off will drain the battery. Power is always supplied to the outlets. Always unplug electrical equipment when not in use and do not plug in equipment that exceeds the maximum 20 ampere rating. Certain accessory power plugs may not be compatible to the accessory power outlet and could result in blown vehicle or adapter fuses. If you experience a problem, see your dealer for additional information on the accessory power outlets. Notice: Adding any electrical equipment to your vehicle may damage it or keep other components from working as they should. The repairs would not be covered by your warranty. Do not use equipment exceeding maximum amperage rating of 20 amperes. Check with your dealer/retailer before adding electrical equipment. Follow the proper installation instructions that are included with any electrical equipment you install. Notice: Improper use of the power outlet can cause damage not covered by your warranty. Do not hang any type of accessory or accessory bracket from the plug because the power outlets are designed for accessory power plugs only. Ashtray(s) and Cigarette Lighter Your vehicle may have an ashtray and cigarette lighter. Notice: If you put papers, pins, or other ﬂammable items in the ashtray, hot cigarettes or other smoking materials could ignite them and possibly damage your vehicle. Never put ﬂammable items in the ashtray. Ashtray For vehicles with an ashtray, it is located under the climate control panel on the center console. Press on the door to release the ashtray. The ashtray automatically slides open for use. To empty the ashtray with the ashtray in full open position, locate the release button to the right of the ash receiver and slide it to the right (in the direction of the arrow). The ash receiver will unlock and lift slightly and can then be easily removed from the housing. To replace the ash receiver, place it into position in the ashtray housing and push down ﬁrmly until it locks into place. 3-47 Climate Controls Dual Climate Control System The heating, cooling, and ventilation can be controlled for the vehicle with this system. Automatic Operation Cigarette Lighter Notice: Holding a cigarette lighter in while it is heating will not allow the lighter to back away from the heating element when it is hot. Damage from overheating may occur to the lighter or heating element, or a fuse could be blown. Do not hold a cigarette lighter in while it is heating. Do not use equipment exceeding maximum amperage rating of 15 amperes. The cigarette lighter is located next to the ashtray. The vehicle does not have any cigarette lighters for the rear seat passengers. To activate the cigarette lighter, push it into the heating element and let go. When the lighter is ready it will pop back out by itself. Vehicles With Heated and Ventilated Seats Shown, Vehicles Without Similar 3-48 AUTO (Automatic): When this button is pressed and the temperature is set, the system automatically controls the inside temperature, the air delivery mode, the air conditioning compressor, and the fan speed. AUTO will appear on the display next to the fan, mode indicators, and recirculation indicator if the vehicle has a air quality sensor. 1. Press the AUTO button. 2. Adjust the temperature to a comfortable setting, generally, between 70°F (21°C) and 80°F (27°C). Choosing the coldest or warmest temperature setting will not cause the system to heat or cool any faster. If the system is set at the warmest temperature setting, the system will try to continuously heat the vehicle and will not adjust the system down as the vehicle warms up. In cold weather, the system can start at reduced fan speeds to avoid blowing cold air into the vehicle until warmer air is available. The system starts out blowing air at the ﬂoor, but can automatically change modes as the vehicle warms up to maintain the chosen temperature setting. The length of time needed for warm up depends on the outside temperature and the length of time that has elapsed since the vehicle was last driven. 3. Wait for the system to regulate. This may take from 10 to 30 minutes. Then adjust the temperature, if necessary. You can switch from English to metric units through the Driver Information Center (DIC). See DIC Operation and Displays on page 3-74. The air-conditioning system removes moisture from the air, so some water might drip underneath the vehicle while idling or after turning off the engine. This is normal. Manual Operation yN z(Mode): Pressing the mode switch and changing the mode cancels automatic operation and allows the operator to manually select the air delivery location. Press AUTO to return to automatic operation. The outboard air outlets always receive airﬂow regardless of the mode selected. See Outlet Adjustment on page 3-54 to change this airﬂow from the outboard outlets. To change the current mode, select one of the following: Y(Vent): This mode directs air to the instrument panel outlets. \(Bi-Level): This mode splits the air between the instrument panel outlets and the ﬂoor outlets. In automatic operation, cooler air is directed to the upper outlets and warmer air to the ﬂoor outlets. [(Floor): This mode directs most of the air to the ﬂoor outlets with some air directed to the outboard outlets, and a little air directed to the windshield and side windows. 3-49 The mode switch can also be used to select the defog mode. Information on defogging and defrosting can be found later in this section. yAz(Fan): Press this switch to increase or decrease the fan speed. Pressing this switch cancels automatic operation and allows the operator to manually select the amount of airﬂow. Press AUTO to return to automatic operation. If the airﬂow seems low when the fan speed is at the highest setting, the passenger compartment air ﬁlter may need to be replaced. For more information, see Passenger Compartment Air Filter on page 3-55 and Scheduled Maintenance on page 6-4. h(Recirculation): Press this button to control the air source for the climate control system. If in AUTO mode, press this button once to select recirculation. This mode keeps outside air from coming in the vehicle and recirculates the air in the vehicle. It can be used to prevent outside air and odors from entering the vehicle or to help cool the air inside the vehicle more quickly. Recirculation is not available in the defrost mode and shuts off when defog mode is selected. Both of these features are designed to limit fogging in the vehicle. If recirculation is selected during defog mode, it automatically turns off after 10 minutes to limit problems with fogging. 3-50 In some conditions, using recirculation for long periods of time can cause the air inside the vehicle to become too dry or stuffy. To prevent this from happening, after the air in the vehicle has cooled, select AUTO to return to automatic climate control operation or push the recirculation button again to select outside air. Press this button a second time to select outside air. :(Outside Air): This mode forces the system to pull air from outside the vehicle. It can be used to bring fresh air into the vehicle. Air Quality Sensor: Your vehicle could have an air quality sensor to help limit the climate control system from pulling in some harmful exhaust fumes from older, poorly running, or diesel-equipped vehicles that are driving near you. This sensor, when active, monitors the air quality in front of your vehicle and switches to air recirculation when poor quality air is detected outside your vehicle. Press the AUTO button on the climate control to activate the air quality sensor. The word AUTO comes on the center of the climate control display. While the air quality sensor senses poor quality air, the recirculation graphic displays. Under some conditions, the air quality sensor system does not operate. In cold weather, the system might not be active (even if AUTO is displayed) because of concerns of fogging your windows, which may occur by activating recirculation mode. Also, the air quality sensor system does not remain in recirculation mode for extended periods of time that could cause stuffy or very dry conditions in the vehicle. Following a poorly running vehicle for an extended period of time may not keep recirculation active indeﬁnitely. The air quality sensor does not activate due to organic odors, like skunk, and may not activate on many chemical-related odors. If you wish to limit these types of odors, manually select recirculation. Your vehicle could also have a charcoal ﬁlter that can limit many odors from being pulled into your vehicle. This ﬁlter needs to be changed periodically. See Scheduled Maintenance on page 6-4. The air quality sensor system does not protect against carbon monoxide (CO), which you cannot see or smell. See Engine Exhaust on page 2-38. O(Power Driver’s Temperature): Press the power button located on the driver’s side of the climate control panel to turn the entire climate control system on or off. Turn the knob to increase or decrease the temperature inside the vehicle. O(Power Passenger’s Temperature): Press the power button located on the passenger’s side of the climate control panel to turn the passenger’s climate control system on if they wish to have a different setting than the driver. Turn the knob to increase or decrease the temperature for the front passenger. Turning the passenger’s side power button off will not shut off the climate control system for the passenger. The system is set to the same setting as the driver. {(Ventilated Seat): Press this button, to turn on the driver or passenger’s side ventilated seat, if the vehicle has this feature. See Heated and Ventilated Seats on page 1-3. J(Heated Seat): Press this button, to turn on the driver or passenger’s side heated seat and seatback, if the vehicle has this feature. See Heated and Ventilated Seats on page 1-3. ^(Air Conditioning): Press this button to manually turn off the air conditioning compressor. Press AUTO to return to automatic operation. To limit fogging on the windshield, the air conditioning compressor cannot be off while in the defrost mode. 3-51 Sensors There is a solar sensor located on the instrument panel, near the windshield. There is also an interior temperature sensor located next to the steering wheel on the instrument panel. These sensors monitor the solar radiation and the air inside the vehicle, then use the information to adjust the temperature, the fan speed and the air delivery system, in order to maintain the selected temperature. 3-52 The system may also supply cooler air to the side of the vehicle facing the sun. Do not cover the sensors or the automatic climate control system will not work properly. Defogging and Defrosting Fog on the inside of windows is a result of high humidity (moisture) condensing on the cool window glass. This can be minimized if the climate control system is used properly. There are two modes to clear fog from the windshield. Use the defog mode to clear the windows of fog or moisture and warm the passengers. Use the defrost mode to remove fog or frost from the windshield more quickly. yN z(Mode): Press this button until defog appears on the display. -(Defog): This mode directs the air between the windshield and ﬂoor outlets with some air supplied to the outboard panel outlets and side window defogging outlets. When this mode is selected, the system turns off recirculation and runs the air-conditioning compressor unless the outside temperature is at or below freezing. The recirculation mode is cancelled when the system enters the defog mode. If recirculation is selected while in the defog mode, it is cancelled after 10 minutes. If there is fogging on the side windows, remain in defog or defrost mode until they clear. 0(Defrost): Press this button to direct most of the air to the windshield, with some air directed to the side windows and outboard panel outlets. In this mode, the system automatically turns off recirculation and runs the air-conditioning compressor, unless the outside temperature is at or below freezing. Recirculation cannot be selected while in the defrost mode. This mode can also cause the fan speed and air temperature to increase. Rear Window Defogger The rear window defogger uses a warming grid to remove fog or frost from the rear window. The rear window defogger only works when the ignition is on or during remote start, if programmed. See “Personal Settings Menu” under Vehicle Personalization on page 2-60 for additional information. =(Rear Window Defogger): Press this button to turn the rear window defogger on or off. Be sure to clear as much snow from the rear window as possible. The rear window defogger turns off about 10 minutes after the button is pressed. If the vehicle’s speed is above 30 mph (48 km/h), the rear defogger stays on continuously. If turned on again, the defogger only runs for about ﬁve minutes before turning off. The defogger can also be turned off by pressing the button again or by turning off the engine. The heated outside rearview mirrors also heat to help clear fog or frost from the surface of the mirror when the rear window defogger is on. See Outside Power Heated Mirrors on page 2-43. Notice: Do not use a razor blade or sharp object to clear the inside rear window. Do not adhere anything to the defogger grid lines in the rear glass. These actions may damage the rear defogger. Repairs would not be covered by your warranty. 3-53 Outlet Adjustment Use the lever located in the center of each outlet to change the direction of the airﬂow, either side-to-side or up and down. Use the thumbwheels to open or close the outlets to adjust the airﬂow. Turn the thumbwheel towards the vehicle door to open the outlets and allow the maximum amount of air to enter your vehicle. Turn the thumbwheel towards the center console to close the outlets and minimize the amount of air entering the vehicle. Operation Tips (cid:129) Clear away any ice, snow or leaves from the air inlets at the base of the windshield that may block the ﬂow of air into your vehicle. (cid:129) Use of non-GM approved hood deﬂectors may adversely affect the performance of the system. (cid:129) Keep the path under the front seats clear of objects to help circulate the air inside of your vehicle more effectively. If the airﬂow seems low when the fan speed is at the highest setting, the passenger compartment air ﬁlter may need to be replaced. For more information, see Passenger Compartment Air Filter on page 3-55. Rear Climate Control System Your vehicle has a rear climate control system. The base model includes air outlets in the rear of the center console for cooling and under-seat air outlets for heating. The temperature, quantity, and air delivery location is controlled automatically by the front climate control system. Some vehicles are equipped with an optional climate control panel for the rear passenger, located on the back of the center console. The left knob controls the temperature of the air to the rear passengers. Turning the knob to the left will make the air cooler. Turning the knob to the right will make the air warmer. 3-54 (cid:129) The right knob controls the air delivery to the rear passengers. Turning the knob all the way to the left will shut off airﬂow to the rear passengers. Operating with the rear air delivery off may make the entire vehicle warm or cool less quickly. It may also increase the air rush sound of the front system. 9(Off): This is the off position. Y (Vent): This mode directs all the rear passenger airﬂow to the outlets in the console. This is the normal position for cool down conditions. \(Bi-Level): This mode directs airﬂow to the console outlets and the ﬂoor. [(Floor): This mode directs all of the airﬂow to the ﬂoor. This is the normal position for warm up conditions. The amount of airﬂow to the rear passengers is controlled automatically by the front climate control system, regardless of optional equipment. Airﬂow to the rear system will be turned off when defrost is selected on the front climate control panel to direct air to clear the windshield. Vehicles equipped with a rear climate control panel, also, have heated rear seats. There are two buttons, each with three indicator lights, located between the two climate control knobs on the rear climate control panel, to control the rear heated seats. See Heated Seats on page 1-7 for additional information. Be sure to keep the area under the front seats clear of any objects so the air in your vehicle can circulate effectively. Passenger Compartment Air Filter Your vehicle may be equipped with a passenger compartment air ﬁlter. There are two types of ﬁlters available. There is a standard dust ﬁlter that traps small particles including pollen. There is, also, a dust/odor ﬁlter available that traps dust and pollen and also uses a charcoal element to help reduce many offensive odors from entering your vehicle. The ﬁlter will need to be changed periodically. For information on how often to change the passenger compartment air ﬁlter, see Scheduled Maintenance on page 6-4. Notice: Driving without a passenger compartment air ﬁlter in place can cause water and small particles, like paper and leaves, to be pulled into your climate control system which may cause damage to it. Make sure you always replace the old ﬁlter with a new one. 3-55 3. To access the ﬁlter, remove the plastic water deﬂector by lifting the outboard edge of the deﬂector to release the retention tab. 4. Lift the inboard edge of the deﬂector to release the retention tab. 5. Lift and slide the water deﬂector toward the inboard side and remove it. 6. The top edge of the ﬁlter should be visible. Reach in and lift the ﬁlter out, pulling upward and toward the front of the vehicle. 7. Insert the new air ﬁlter by sliding it back into place. Make sure the arrow on the ﬁlter is pointing toward the passenger compartment. Reverse steps 1 through 3 to reinstall the water deﬂector, ﬁlter cover and the hood seal. The access panel for the passenger compartment air ﬁlter is located under the hood near the windshield, on the passenger’s side of the vehicle. See Engine Compartment Overview on page 5-11 for more information on location. See Doing Your Own Service Work on page 5-4 for information on doing your own service work. To access the passenger compartment air ﬁlter, do the following: 1. Pull back the rubber hood seal from the edge of the leaf screen vent cover. 2. Remove the three fasteners that hold the ﬁlter access cover in place and slide the cover off. 3-56 Warning Lights, Gages, and Indicators This part describes the warning lights and gages that may be on your vehicle. The pictures will help you locate them. Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gages could also save you or others from injury. Warning lights come on when there may be or is a problem with one of your vehicle’s functions. As you will see in the details on the next few pages, some warning lights come on brieﬂy when you start the engine just to let you know they are working. If you are familiar with this section, you should not be alarmed when this happens. Gages can indicate when there may be or is a problem with one of your vehicle’s functions. Often gages and warning lights work together to let you know when there is a problem with your vehicle. When one of the warning lights comes on and stays on while you are driving, or when one of the gages shows there may be a problem, check the section that tells you what to do about it. Waiting to do repairs can be costly – and even dangerous. So please get to know your warning lights and gages. They are a big help. Your vehicle also has a Driver Information Center (DIC) that works along with the warning lights and gages. See Driver Information Center (DIC) on page 3-74 for more information. 3-57 Instrument Panel Cluster The instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you are going, how much fuel you are using and many of the other things you will need to know to drive safely and economically. United States Base version shown, Canada and Uplevel similar 3-58 Speedometer and Odometer Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h). See “MPH (km)” under DIC Operation and Displays on page 3-74 for more information. The odometer mileage can be checked without the vehicle running. Your vehicle’s odometer works together with the driver information center. You can set a Trip A and a Trip B odometer. See “Trip Information” under DIC Operation and Displays on page 3-74 for more information. If your vehicle ever needs a new odometer installed, the new one will be set to the correct mileage total of the old odometer. Tachometer This gage indicates the engine speed in revolutions per minute (rpm). Safety Belt Reminders Safety Belt Reminder Light When the engine is started, a chime will come on for several seconds to remind people to fasten their safety belts, unless the driver’s safety belt is already buckled. The safety belt light will also come on and stay on for several seconds, then it will ﬂash for several more. This chime and light is repeated if the driver remains unbuckled and the vehicle is in motion. If the driver’s belt is already buckled, neither the chime nor the light will come on. 3-59 Passenger Safety Belt Reminder Light Several seconds after the engine is started, a chime will sound for several seconds to remind the front passenger to buckle their safety belt. This would only occur if the passenger airbag is enabled. See Passenger Sensing System on page 1-60 for more information. The passenger safety belt light will also come on and stay on for several seconds, then it will ﬂash for several more. This chime and light are repeated if the passenger remains unbuckled and the vehicle is in motion. If the passenger’s safety belt is buckled, neither the chime nor the light will come on. Airbag Readiness Light There is an airbag readiness light on the instrument panel cluster, which shows the airbag symbol. The system checks the airbag’s electrical system for malfunctions. The light tells you if there is an electrical problem. The system check includes the airbag sensor, the pretensioners, the airbag modules, the wiring and the crash sensing and diagnostic module. For more information on the airbag system, see Airbag System on page 1-51. This light will come on when you start your vehicle, and it will ﬂash for a few seconds. The light should go out and the system is ready. If the airbag readiness light stays on after you start the vehicle or comes on when you are driving, your airbag system may not work properly. Have your vehicle serviced right away. 3-60 {CAUTION: If the airbag readiness light stays on after you start your vehicle, it means the airbag system may not be working properly. The airbags in your vehicle may not inﬂate in a crash, or they could even inﬂate without a crash. To help avoid injury to yourself or others, have your vehicle serviced right away if the airbag readiness light stays on after you start your vehicle. The airbag readiness light should ﬂash for a few seconds when you start the engine. If the light does not come on then, have it ﬁxed immediately. If there is a problem with the airbag system, an airbag Driver Information Center (DIC) message may also come on. See DIC Warnings and Messages on page 3-80 for more information. Passenger Airbag Status Indicator Your vehicle has the passenger sensing system. Your overhead console has a passenger airbag status indicator. United States Canada When you start the vehicle, the passenger airbag status indicator will light ON and OFF, or the symbol for on and off, for several seconds as a system check. If you use remote start to start your vehicle from a distance, if your vehicle has this feature, you may not see the system check. 3-61 {CAUTION: Even though the passenger sensing system is designed to turn off the right front passenger’s frontal airbag if the system detects a rear-facing child restraint, no system is fail-safe, and no one can guarantee that an airbag will not deploy under some unusual circumstance, even though it is turned off. We recommend that rear-facing child restraints be secured in the rear seat, even if the airbag is off. If the word OFF or the off symbol is lit on the airbag status indicator, it means that the passenger sensing system has turned off the right front passenger’s frontal airbag. See Passenger Sensing System on page 1-60 for more on this, including important safety information. Then, after several more seconds, the status indicator will light either ON or OFF, or either the on or off symbol to let you know the status of the right front passenger’s frontal airbag. If the word ON or the on symbol is lit on the passenger airbag status indicator, it means that the right front passenger’s frontal airbag is enabled (may inﬂate). {CAUTION: If the on indicator comes on when you have a rear-facing child restraint installed in the right front passenger’s seat, it means that the passenger sensing system has not turned off the passenger’s frontal airbag. A child in a rear-facing child restraint can be seriously injured or killed if the right front passenger’s airbag inﬂates. This is because the back of the rear-facing child restraint would be very close to the inﬂating airbag. Do not use a rear-facing child restraint in the right front passenger’s seat if the airbag is turned on. 3-62 If, after several seconds, both status indicator lights remain on, or if there are no lights at all, there may be a problem with the lights or the passenger sensing system. See your dealer/retailer for service. {CAUTION: If the airbag readiness light in the instrument panel cluster ever comes on and stays on, it means that something may be wrong with the airbag system. If this ever happens, have the vehicle serviced promptly, because an adult-size person sitting in the right front passenger’s seat may not have the protection of the airbag(s). See Airbag Readiness Light on page 3-60 for more on this, including important safety information. Charging System Light This light will come on brieﬂy when you turn on the ignition, but the engine is not running, as a check to show you it is working. It should go out once the engine is running. If it stays on, or comes on while you are driving, you may have a problem with the charging system. A charging system Driver Information Center (DIC) message may also appear. See DIC Warnings and Messages on page 3-80 for more information. This light could indicate that you have problems with a generator drive belt, or another electrical problem. Have it checked right away. If you must drive a short distance with the light on, be certain to turn off all your accessories, such as the radio and air conditioner. 3-63 Brake System Warning Light Your vehicle’s hydraulic brake system is divided into two parts. If one part isn’t working, the other part can still work and stop you. For good braking, though, you need both parts working well. If the warning light comes on, there is a brake problem. Have your brake system inspected right away. United States Canada This light should come on brieﬂy when you turn the engine on. If it does not come on then, have it ﬁxed so it will be ready to warn you if there is a problem. When the ignition is on, the brake system warning light will also come on when you set your parking brake. The light will stay on if your parking brake does not release fully. If it stays on after your parking brake is fully released, it means you have a brake problem. If the light comes on while you are driving, pull off the road and stop carefully. You may notice that the pedal is harder to push, or the pedal may go closer to the ﬂoor. It may take longer to stop. If the light is still on, have the vehicle towed for service. See Towing Your Vehicle on page 4-31. {CAUTION: Your brake system may not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to an accident. If the light is still on after you have pulled off the road and stopped carefully, have the vehicle towed for service. 3-64 Antilock Brake System Warning Light Traction Control System (TCS) Warning Light For vehicles with the Antilock Brake System (ABS), this light will come on brieﬂy when you start the engine. If the Traction Control System (TCS) warning light comes on and stays on, there may be a problem with the TCS. That is normal. If the light does not come on then, have it ﬁxed so it will be ready to warn you if there is a problem. If the ABS light stays on, turn the ignition off, if the light comes on when you are driving, stop as soon as it is safely possible and turn the ignition off. Then start the engine again to reset the system. If the ABS light still stays on, or comes on again while you are driving, your vehicle needs service. If the regular brake system warning light is not on, you still have brakes, but you do not have antilock brakes. If the regular brake system warning light is also on, you do not have antilock brakes and there is a problem with your regular brakes. See Brake System Warning Light on page 3-64 For vehicles with a Driver Information Center (DIC), see DIC Warnings and Messages on page 3-80 for all brake related DIC messages. The TCS warning light will come on brieﬂy when the engine is started. If it does not come on then, have it ﬁxed so it will be ready to warn you if there is a problem. The light will also come on if you turn the TCS off using the traction control on/off button located on the console. If this light stays on or comes on while you are driving, pull off the road as soon as possible and stop carefully. Turn your engine off and then restart it. If the light still stays on or comes back on again while you are driving, your vehicle needs service. Have the TCS inspected as soon as possible. See Traction Control System (TCS) on page 4-6 and StabiliTrak® System on page 4-8 for more information. Also see Competitive Driving Mode (STS-V) on page 4-7 for more information. 3-65 Lane Departure Warning Light Your vehicle may have the lane departure warning system. Engine Coolant Temperature Warning Light The engine coolant temperature warning light will come on when the engine is very hot. This light will come on green, brieﬂy, when the vehicle is started to show that it is working. This light will also come on green if the system detects a left or right lane marking. This light will change to amber and ﬂash and three beeps will sound if you cross a detected lane marking without using your turn signal. For more information, see the Index in the Navigation Manual. This light will also come on brieﬂy when the vehicle is started. If the light does not go out or comes on and stays on while driving, there may be a problem with the cooling system. Driving with engine coolant temperature light on could cause your vehicle to overheat, see Overheated Engine Protection Operating Mode on page 5-31. See Engine Overheating on page 5-29 and DIC Warnings and Messages on page 3-80 for more information. 3-66 Engine Coolant Temperature Gage Tire Pressure Light This gage shows the engine coolant temperature. This light comes on brieﬂy when the engine is started. It can be used to see when your engine has warmed up and to make sure your cooling system is operating properly. If the gage pointer moves into the shaded area, the engine coolant is too hot and the engine coolant temperature warning light will come on. See Engine Overheating on page 5-29 for more information. This light will also come on when one or more of your tires are signiﬁcantly underinﬂated. A tire pressure message in the Driver Information Center (DIC), may accompany the light. See DIC Warnings and Messages on page 3-80 for more information. Stop and check your tires as soon as it is safe to do so. If underinﬂated, inﬂate to the proper pressure. See Tires on page 5-57 for more information. If a problem is detected with the Tire Pressure Monitor System, this light will ﬂash for approximately 60 seconds and then stay on solid for the remainder of the ignition cycle. See Tire Pressure Monitor System on page 5-68 for more information. 3-67 Malfunction Indicator Lamp Check Engine Light A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors operation of the fuel, ignition, and emission control systems. It makes sure that emissions are at acceptable levels for the life of the vehicle, helping to produce a cleaner environment. The check engine light comes on to indicate that there is an OBD II problem and service is required. Malfunctions often are indicated by the system before any problem is apparent. This can prevent more serious damage to your vehicle. This system is also designed to assist your service technician in correctly diagnosing any malfunction. Notice: light on, after a while, the emission controls might not work as well, your vehicle’s fuel economy might not be as good, and the engine might not run as smoothly. This could lead to costly repairs that might not be covered by your warranty. If you keep driving your vehicle with this 3-68 Notice: Modiﬁcations made to the engine, transmission, exhaust, intake, or fuel system of your vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect your vehicle’s emission controls and can cause this light to come on. Modiﬁcations to these systems could lead to costly repairs not covered by your warranty. This could also result in a failure to pass a required Emission Inspection/Maintenance test. See Accessories and Modiﬁcations on page 5-3. This light comes on brieﬂy, as a check to show it is working, as you start the engine. If the light does not come on, have it repaired. This light also comes on during a malfunction in one of two ways: Light Flashing — A misﬁre condition has been detected. A misﬁre increases vehicle emissions and could damage the emission control system on your vehicle. Diagnosis and service might be required. Light On Steady — An emission control system malfunction has been detected on your vehicle. Diagnosis and service might be required. (cid:129) (cid:129) If the Light Is Flashing The following can prevent more serious damage to your vehicle: (cid:129) Reduce vehicle speed. (cid:129) Avoid hard accelerations. (cid:129) Avoid steep uphill grades. If the light stops ﬂashing and remains on steady, see “If the Light Is On Steady” following. If the light continues to ﬂash, when it is safe to do so, stop the vehicle. Find a safe place to park the vehicle. Turn the engine off, wait at least 10 seconds and restart the engine. If the light remains on steady, see “If the Light Is On Steady” following. If the light is still ﬂashing, follow the previous steps, and see your dealer/retailer for service as soon as possible. If the Light Is On Steady You might be able to correct the emission system malfunction by considering the following: Did you recently put fuel into your vehicle? If so, reinstall the fuel cap, making sure to fully install the cap. See Filling the Tank on page 5-7. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap allows fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn the light off. Did you just drive through a deep puddle of water? If so, your vehicle’s electrical system might be wet. The condition is usually corrected when the electrical system dries out. A few driving trips should turn the light off. Have you recently changed brands of fuel? If so, be sure to fuel your vehicle with quality fuel. See Gasoline Octane on page 5-5. Poor fuel quality causes the engine not to run as efficiently as designed. You might notice this as stalling after start-up, stalling when you put the vehicle into gear, misﬁring, hesitation on acceleration, or stumbling on acceleration — these conditions might go away once the engine is warmed up. This will be detected by the system and cause the light to turn on. If you experience one or more of these conditions, change the fuel brand you use. It will require at least one full tank of the proper fuel to turn the light off. If none of the above steps have made the light turn off, your dealer/retailer can check the vehicle. Your dealer/retailer has the proper test equipment and diagnostic tools to ﬁx any mechanical or electrical problems that might have developed. 3-69 Your vehicle will not pass this inspection if the OBD (on-board diagnostic) system determines that critical emission control systems have not been completely diagnosed by the system. The vehicle would be considered not ready for inspection. This can happen if you have recently replaced the battery or if the battery has run down. The diagnostic system is designed to evaluate critical emission control systems during normal driving. This may take several days of routine driving. If you have done this and your vehicle still does not pass the inspection for lack of OBD system readiness, your dealer/retailer can prepare the vehicle for inspection. Oil Pressure Light Your vehicle may have this feature. Emissions Inspection and Maintenance Programs Some state/provincial and local governments have or might begin programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent you from getting a vehicle registration. Here are some things you need to know to help your vehicle pass an inspection: Your vehicle will not pass this inspection if the check engine light is on or not working properly. To perform a check engine light bulb check with the keyless ignition, make sure the transmitter fob is in the passenger compartment. See Ignition Positions on page 2-28. Press the bottom of the Acc. button on the instrument panel and hold the button down for ﬁve seconds. The instrument panel, including the check engine light, will light up and the ignition will be on, but the engine will not start — if you press the bottom of the Acc. button only brieﬂy, less than ﬁve seconds, the accessory power mode will be turned on, but not the ignition. After the bulb check, be sure to press and release the Acc. button again to turn the ignition off and avoid draining the vehicle’s battery. 3-70 If the vehicle has an oil problem, this light may stay on after the engine is started, or come on while you are driving. This light indicates that oil is not going through the engine quickly enough to keep it lubricated. The engine could be low on oil or could have some other oil problem. Have it ﬁxed right away. The oil light could also come on in the following situations: The light will come on brieﬂy when the ignition is turned on to show that it is working properly. If it does not come on with the ignition on, there may be a problem with the fuse or bulb. Have it ﬁxed right away. (cid:129) Sometimes when the engine is idling at a stop, a chime will sound and the light may blink on and off. This is normal. {CAUTION: Do not keep driving if the oil pressure is low. If you do, your engine can become so hot that it catches ﬁre. You or others could be burned. Check your oil as soon as possible and have your vehicle serviced. Notice: Lack of proper engine oil maintenance may damage the engine. The repairs would not be covered by your warranty. Always follow the maintenance schedule in this manual for changing engine oil. Security Light For information regarding this light and the vehicle’s security system, see Theft-Deterrent System on page 2-22. 3-71 (cid:129) Fog Lamp Light Cruise Control Light The fog lamp light will come on when the fog lamps are in use. This light comes on whenever you set your cruise control. The light will go out when the fog lamps are turned off. See Fog Lamps on page 3-39 for more information. Lights On Reminder The light will go out when the cruise control is turned off. See Cruise Control on page 3-17 and Adaptive Cruise Control on page 3-20 for more information. Highbeam On Light This light comes on whenever the parking lamps are on. This light comes on when the high-beam headlamps are in use. See Headlamps on Reminder on page 3-37 for more information. See Headlamp High/Low-Beam Changer on page 3-9 for more information. 3-72 Fuel Gage The fuel gage shows approximately how much fuel is in the fuel tank. It works only when the engine is on. All of the following situations are normal and do not indicate that anything is wrong with the fuel gage: (cid:129) At the gas station the gas pump shuts off before the gage reads full. The gage may change when you turn, stop quickly or accelerate quickly. It takes a little more or less fuel to ﬁll the tank than the gage indicated. For example, the gage may have indicated that the tank was half full, but it actually took a little more or less than half the tank’s capacity to ﬁll the tank. If the fuel supply gets low, the “FUEL LEVEL LOW” message will appear on the Driver Information Center (DIC) and a single chime will sound. See DIC Warnings and Messages on page 3-80 for more information. 3-73 (cid:129) (cid:129) When the sport mode is active, an S will appear next to the shift position indicator on the center of the DIC display. When the manual mode is active, an M will appear on the DIC display. When the normal mode is active, only the shift position indicator will appear. While the Driver Shift Control (DSC) feature is active, the DIC will change to show the selected gear. See “Driver Shift Control (DSC)” under Automatic Transmission Operation on page 2-32 for more information. If a problem is detected, a warning message will appear on the display. Be sure to take any message that appears on the display seriously and remember that clearing the message will only make the message disappear, not correct the problem. DIC Operation and Displays The Driver Information Center (DIC) has different modes which can be accessed by pressing the four DIC buttons located on the instrument panel, to the left of the steering wheel. Driver Information Center (DIC) The Driver Information Center (DIC) gives you the status of many of your vehicle’s systems. The DIC is also used to display warning/status messages. All messages will appear in the DIC display located at the bottom of the instrument panel cluster, below the tachometer and speedometer. The DIC buttons are located on the instrument panel, to the left of the steering wheel. The DIC comes on when the ignition is on. After a short delay, the DIC will display the current driver and the information that was last displayed before the engine was turned off. The top line of the DIC display shows the vehicle system information and the warning/status messages. The bottom line of the DIC display shows either the odometer, the trip odometer A or the trip odometer B information on the left side. Only one odometer can appear at a time. See “Trip Information” under DIC Operation and Displays on page 3-74 for information on changing the display to show the odometer or trip odometer information. The bottom line of the DIC display also shows the outside temperature on the right side and the shift lever position indicator in the center. See Automatic Transmission Operation on page 2-32 for more information on the shift lever positions. 3-74 DIC Buttons (Base Level) If your vehicle does not have a Head-Up Display (HUD), these are the buttons for the DIC. «4ª(Information): Press the top or bottom of this button to scroll through the available vehicle information displays which include digital speed display, if your vehicle has this feature, fuel range, fuel economy, fuel used, average speed, timer, battery voltage, tire pressure, and engine oil life, if your vehicle has this feature. If you have an STS-V, the DIC also has additional vehicle information displays which include engine boost, engine oil temperature, oil pressure, and transmission ﬂuid temperature. See “MPH (km)” later in this section for more information on the digital speed display. AB 3 00 (Trip Information): Press the top of this button to scroll through the odometer, trip odometer A and trip odometer B. Press and hold the bottom of this button to reset each trip odometer back to zero. 4// (Reset): Press this button to reset certain DIC features and to acknowledge DIC warning messages and clear them from the DIC display. EM (English/Metric): Press this button to change the display from English to metric. 3-75 «~ª (Head-Up Display): Press this button to change the position of the HUD on the windshield. Press the top part of the button to move the HUD image up. Press the bottom part of the button to move the HUD image down. To adjust the brightness of the HUD image, see Head-Up Display (HUD) on page 3-43. For information on adjusting the instrument panel brightness, see Instrument Panel Brightness on page 3-41. 4// (Reset): Press this button to reset certain DIC features and to acknowledge DIC warning messages and clear them from the DIC display. 3 (Trip Information): Press this button to scroll through the odometer, trip odometer A and trip odometer B. To reset each trip odometer, either press the reset button or press and hold the trip information button until the trip odometer displayed returns to zero. DIC Buttons (Uplevel) If your vehicle has a HUD, these are the buttons for the DIC. «4ª(Information): Press the top or bottom of this button to scroll through the available vehicle information displays which include digital speed display, if your vehicle has this feature, fuel range, fuel economy, fuel used, average speed, timer, battery voltage, tire pressure, engine oil life, if your vehicle has this feature, and display units. See “MPH (km)” later in this section for more information on the digital speed display. 3-76 Information Display Menu Items The following display menu items can be displayed by pressing the information button. MPH (km/h) If your vehicle has this display, it shows the vehicle’s speed digitally in either miles per hour (mph) or kilometers per hour (km/h). MILES RANGE (km RANGE) This display shows the approximate number of remaining miles (mi) or kilometers (km) you can drive without reﬁlling the fuel tank. This estimate is based on the current driving conditions and will change if the driving conditions change. For example, if you are driving in traffic making frequent stops, the display may read one number, but if you enter the freeway, the number may change even though you still have the same amount of fuel in the fuel tank. This is because different driving conditions produce different fuel economies. Generally, freeway driving produces better fuel economy than city driving. Once the range drops below about 40 miles (64 km) remaining, the display will show LOW RANGE. If your vehicle is low on fuel, the Fuel Level Low message will be displayed. See “Fuel Level Low” under DIC Warnings and Messages on page 3-80 for more information. MPG AVG (L/100 km AVG) This display shows the approximate average miles per gallon (mpg) or liters per 100 kilometers (L/100 km). This number is calculated based on the number of mpg (L/100 km) recorded since the last time this display was reset. To reset MPG AVG, press the reset button. The display will return to zero. MPG INST (L/100 km INST) This display shows the current fuel economy. This number reﬂects only the fuel economy that the vehicle has right now and will change frequently as driving conditions change. Unlike average fuel economy, this display cannot be reset. GAL FUEL USED (L FUEL USED) This display shows the number of gallons (gal) or liters (L) of fuel used since the last reset of this display. To reset GAL FUEL USED, press the reset button. The display will return to zero. AVG MPH (AVG km/h) This display shows the average speed of the vehicle in miles per hour (mph) or kilometers per hour (km/h). This average is calculated based on the various vehicle speeds recorded since the last reset of this display. To reset AVG MPH, press the reset button. The display will return to zero. 3-77 TIMER OFF This display can be used like a stopwatch. You can record the time it takes to travel from one point to another. To access the timer, press the information button until 00:00:00 TIMER OFF displays. To turn on the timer, press the reset button until TIMER ON displays. The timer will then start. To turn off the timer, press the reset button again until TIMER OFF displays. The timer will stop and display the end timing value. To reset the timer, press and hold the reset button after the timer has been stopped. The display will return to zero. BATTERY VOLTS This display shows the current battery voltage. If the voltage is in the normal range, the value will display. For example, the display may read 13.2 BATTERY VOLTS. If the voltage is low, the display will have LOW after it. If the voltage is high, the display will have HIGH after it. Your vehicle’s charging system regulates voltage based on the state of the battery. The battery voltage may ﬂuctuate when viewing this information on the DIC. This is normal. See Charging System Light on page 3-63 for more information. If there is a problem with the battery charging system, the DIC may display a message. See DIC Warnings and Messages on page 3-80 and Electric Power Management on page 3-42 for more information. 3-78 Tire Pressure This display shows the pressure for each tire in either pounds per square inch (psi) or kilopascals (kPa). If the tire pressure is normal, the value will display. If the tire pressure is low or high, LOW or HIGH will appear on the display with the value. See Inﬂation - Tire Pressure on page 5-66 and DIC Warnings and Messages on page 3-80 for more information. Press the information button to scroll through the following displays: LF TIRE: This display shows the pressure in the driver side front tire. RF TIRE: This display shows the pressure in the passenger side front tire. LR TIRE: This display shows the pressure in the driver side rear tire. RR TIRE: This display shows the pressure in the passenger side rear tire. If the tire pressure display shows dashes instead of a value, there may be a problem with your vehicle. If this consistently occurs, see your dealer/retailer for service. ENGINE OIL LIFE If your vehicle has this display, it shows the estimated oil life remaining. If you see 99% ENGINE OIL LIFE on the display, that means that 99% of the current oil life remains. When the oil life is depleted, the CHANGE ENGINE OIL SOON message will appear on the display. Change the oil as soon as possible. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule in this manual. See Scheduled Maintenance on page 6-4 and Engine Oil on page 5-18. After an oil change, reset the ENGINE OIL LIFE display. To reset, see Engine Oil Life System on page 5-21. The display will show 100% ENGINE OIL LIFE after it has been reset. Also clear the CHANGE ENGINE OIL SOON message from the display. ENGLISH DISPLAY UNITS (METRIC DISPLAY UNITS) This display allows you to select between English and metric units of measurement if your vehicle has the uplevel DIC. Press the reset button to switch between English and metric units. Blank Line This display shows no information. ENGINE BOOST (STS-V Only) This display shows a graphic that indicates the amount of boost the engine is receiving in either pounds per square inch (psi) or kilopascals (kPa). ENGINE OIL TEMPERATURE (STS-V Only) This display shows the engine oil temperature in either degrees Fahrenheit (°F) or degrees Celsius (°C). OIL PRESSURE (STS-V Only) This display shows the oil pressure in either pounds per square inch (psi) or kilopascals (kPa). TRANS (Transmission) FLUID TEMP (Temperature) (STS-V Only) This display shows the transmission ﬂuid temperature in either degrees Fahrenheit (°F) or degrees Celsius (°C). 3-79 Trip Information Display Menu Items The following display menu items can be displayed by pressing the trip Information button. Odometer Press the trip information button until the odometer appears on the DIC display. The odometer shows the total distance the vehicle has been driven in either miles (mi) or kilometers (km). Trip Odometer Press the trip information button until trip odometer A or B appears on the DIC display. The trip odometer shows the current distance traveled since the last reset for each trip odometer in either miles (mi) or kilometers (km). Both odometers can be used at the same time. For base level vehicles, each trip odometer can be reset to zero separately by pressing and holding the bottom of the trip information button while the desired trip odometer is displayed. For uplevel vehicles, reset each trip odometer by pressing the reset button or by pressing and holding the trip information button while the desired trip odometer is displayed. DIC Warnings and Messages Messages are displayed on the DIC to notify the driver that the status of the vehicle has changed and that some action may be needed by the driver to correct the condition. Multiple messages may appear one after another. The text messages are the same for both the base audio and Navigation systems unless otherwise indicated. Some messages may not require immediate action, but you can press the reset button to acknowledge that you received the messages and to clear them from the display. Some messages cannot be cleared from the DIC display because they are more urgent. These messages require action before they can be cleared. Take any messages that appear on the display seriously and remember that clearing the messages will only make the messages disappear, not correct the problem. The following are the possible messages that can be displayed and some information about them. 3-80 AUTOMATIC LIGHTS OFF This message displays when the automatic headlamps are turned off. See Headlamps on page 3-33 for more information. AUTOMATIC LIGHTS ON This message displays when the automatic headlamps are turned on. See Headlamps on page 3-33 for more information. BATTERY NOT CHARGING SERVICE CHARGING SYS (System) This symbol appears with this message. This message displays when a problem with the charging system has been detected. Have your vehicle serviced by your dealer/retailer. BATTERY SAVER ACTIVE This message displays when the system detects that the battery voltage is dropping beyond a reasonable level. The battery saver system starts reducing certain features of the vehicle that may be noticeable. At the point that the features are disabled, this message is displayed. It means that the vehicle is trying to save the charge in the battery. Turn off all unnecessary accessories to allow the battery to recharge. The normal battery voltage range is 11.5 to 15.5 volts. To monitor battery voltage on the DIC, press the information button until BATTERY VOLTS displays. 3-81 BATTERY VOLTAGE HIGH BATTERY VOLTAGE LOW This symbol appears with this message. This symbol appears with this message. This message displays when the electrical charging system is overcharging the battery. When the system detects that the battery voltage is above an estimated 16 volts, this message displays. To reduce the charging overload, use the vehicle’s accessories: Turn on the exterior lamps and radio. (cid:129) Set the climate control on AUTO and the fan speed on the highest setting. Turn the rear window defogger on. The normal battery voltage range is 11.5 to 15.5 volts when the engine is running. To monitor battery voltage on the DIC, press the information button until BATTERY VOLTS displays. 3-82 This message displays when the electrical system is charging less than 10 volts or the battery has been drained. If this message appears immediately after starting the engine, it is possible that the generator can still recharge the battery. The battery should recharge while driving, but may take a few hours to do so. Consider using an auxiliary charger to boost the battery after returning home or to a ﬁnal destination. Follow the manufacturer’s instructions. If this message appears while driving or after starting your vehicle and stays on, have it checked immediately to determine the cause of this problem. To help the generator recharge the battery quickly, reduce the load on the electrical system by turning off the accessories. The normal battery voltage range is 11.5 to 15.5 volts. To monitor battery voltage on the DIC, press the information button until BATTERY VOLTS displays. (cid:129) (cid:129) CHANGE ENGINE OIL SOON This message displays when the engine oil needs to be changed. See your dealer/retailer. See Engine Oil on page 5-18 and Scheduled Maintenance on page 6-4 for more information. After resetting the CHANGE ENGINE OIL SOON message by clearing it from the display, reset the engine oil life system separately. For more information on resetting the engine oil life system, see Engine Oil Life System on page 5-21. CHECK BRAKE FLUID This message displays if the ignition is on to inform the driver that the brake ﬂuid level is low. Have the brake system serviced by your dealer/retailer as soon as possible. See Brake System Warning Light on page 3-64 for more information. CHECK GAS CAP This message displays when the fuel cap has not been fully tightened. Recheck the fuel cap to ensure that it is on and tightened properly. CHECK TIRE PRESSURE This message displays when the pressure in one or more of the vehicle’s tires needs to be checked. If a tire pressure message appears on the DIC, stop as soon as you can. Have the tire pressures checked and set to those shown on the Tire Loading Information label. See Tires on page 5-57, Loading Your Vehicle on page 4-26, and Inﬂation - Tire Pressure on page 5-66. The DIC also shows the tire pressure values. See DIC Operation and Displays on page 3-74. If the tire pressure is low, the low tire pressure warning light comes on. See Tire Pressure Light on page 3-67. CHECK WASHER FLUID This symbol appears with this message. This message displays when the windshield washer ﬂuid is low. Fill the windshield washer ﬂuid reservoir as soon as possible. See Windshield Washer Fluid on page 5-40 for more information. 3-83 CLEAN RADAR This message displays when the Adaptive Cruise Control system is disabled because the radar is blocked and cannot detect vehicles in your path. It may also activate during heavy rain or due to road spray. To clean the system, see “Cleaning the System” under Adaptive Cruise Control on page 3-20. CLEAN SIDE BLIND ZONE ALERT SYSTEM If your vehicle has the Side Blind Zone Alert (SBZA) system, this message displays when the SBZA system is disabled because the sensor is blocked and cannot detect vehicles in your blind zone. The sensor may be blocked by mud, dirt, snow, ice, or slush. This message may also display during heavy rain or due to road spray. Your vehicle does not need service. For cleaning instructions, see Washing Your Vehicle on page 5-110. See the Index in the Navigation manual for more information. COMPETITIVE DRIVING (STS-V Only) This message displays when the competitive driving mode is turned on with the TC (traction control) button. The TC (traction control) light comes on when the competitive driving mode is on. The Traction Control System (TCS) will not operate while in competitive driving mode. Adjust your driving accordingly. See Competitive Driving Mode (STS-V) on page 4-7 for more information. DRIVER DOOR AJAR This symbol appears with this message. This message displays when the driver door is not closed completely. Make sure that the door is closed completely. 3-84 ENGINE COOLANT HOT IDLE ENGINE Notice: If you drive your vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soon as possible. Do not increase the engine speed above normal idling speed. See Engine Overheating on page 5-29 for more information. This symbol appears with this message. This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. See Engine Coolant Temperature Warning Light on page 3-66. See Overheated Engine Protection Operating Mode on page 5-31 for information on driving to a safe place in an emergency. ENGINE HOT – AC (Air Conditioning) OFF This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gage on page 3-67. To avoid added strain on a hot engine, the air conditioning compressor is automatically turned off. When the coolant temperature returns to normal, the air conditioning compressor turns back on. You can continue to drive your vehicle. If this message continues to appear, have the system repaired by your dealer/retailer as soon as possible to avoid damage to the engine. ENGINE OVERHEATED STOP ENGINE Notice: If you drive your vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soon as possible. See Engine Overheating on page 5-29 for more information. This message displays when the engine has overheated. Immediately look for a safe place to pull your vehicle over and turn the engine off right away to avoid severe engine damage. See Engine Overheating on page 5-29 and Overheated Engine Protection Operating Mode on page 5-31. A chime also sounds when this message is displayed. 3-85 ENGINE POWER REDUCED This message displays when the engine power is being reduced to protect the engine from damage. There could be several malfunctions that might cause this message. Reduced engine power can affect the vehicle’s ability to accelerate. If this message is on, but there is no reduction in performance, proceed to your destination. The performance may be reduced the next time the vehicle is driven. The vehicle may be driven at a reduced speed while this message is on, but acceleration and speed may be reduced. Anytime this message stays on, take the vehicle to your dealer/retailer for service as soon as possible. ENGINE PROTECTION REDUCED RPM’S (Revolutions Per Minute) This message displays when your vehicle is in an overheated engine operating mode. If this message appears, the vehicle has determined that continued operation at the existing engine speed may lead to engine overheating. The vehicle automatically limits engine RPMs to prevent engine overheating. You may notice the vehicle upshifting early or reduced speeds while this message is displayed. When the engine oil returns to a safe operating temperature, this message clears from the DIC and the vehicle returns to normal operation. Your vehicle does not require service when this message is displayed. FUEL LEVEL LOW This symbol appears with this message. This message displays and a chime sounds if the fuel level is low. Refuel as soon as possible. See Fuel Gage on page 3-73 and Fuel on page 5-5 for more information. 3-86 HOOD AJAR This symbol appears with this message. This message displays when the hood is not closed completely. Make sure that the hood is closed completely. See Hood Release on page 5-10. ICE POSSIBLE This message displays when the outside temperature is cold enough to create icy road conditions. Adjust your driving accordingly. KEY FOB BATTERY LOW This message displays when the battery in the keyless access transmitter is low. Replace the battery in the transmitter. See “Battery Replacement” under Keyless Access System Operation on page 2-6. LANE DEPARTURE SYSTEM UNAVAILABLE If your vehicle has the Lane Departure Warning (LDW) system, this message may display if the LDW system does not activate due to a temporary condition. See the Index in the Navigation manual for more information. LEFT REAR DOOR AJAR This symbol appears with this message. This message displays when the driver side rear door is not closed completely. Make sure that the door is closed completely. 3-87 NO FOBS DETECTED This message displays if the vehicle does not detect the presence of a keyless access transmitter when you have attempted to start the vehicle or a vehicle door has just closed. The following conditions may cause this message to appear: (cid:129) Driver-added equipment plugged into the accessory power outlet on the center console is causing interference. Examples of these devices are cell phones and cell phone chargers, two-way radios, power inverters, or similar items. Try moving the keyless access transmitter away from these devices when starting the vehicle. In addition, PDA devices and remote garage and gate openers may also generate Electromagnetic Interference (EMI) that may interfere with the keyless access transmitter. Do not carry the keyless access transmitter in the same pocket or bag as these devices. The vehicle is experiencing Electromagnetic Interference (EMI). Some locations, such as airports, automatic toll booths, and some gas stations, have EMI ﬁelds which may interfere with the keyless access transmitter. 3-88 If moving the transmitter to different locations within the vehicle does not help, place the transmitter in the center console transmitter pocket with the buttons facing forward and then press the START button. The vehicle’s battery voltage is low. The battery voltage must be above 10 volts for the keyless access transmitter to be detected properly. NO FOB OFF OR RUN? This message displays when the keyless access transmitter is not detected inside the vehicle while you are trying to turn the ignition off. Your vehicle may

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2008 Cadillac STS Owners Manual