2007 Chevrolet Silverado Owners Manual

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being transmitted. Erasing Universal Home Remote Buttons To erase programming from the three Universal Home Remote buttons do the following: 1. Press and hold down the two outside buttons until the indicator light begins to ﬂash, after 20 seconds. Do not hold the two outside buttons for longer than 30 seconds. 2. Release both buttons. The Universal Home Remote is now in the training (learning) mode and can be programmed at any time beginning with Step 2 under “Programming Universal Home Remote” shown earlier in this section. Individual buttons cannot be erased, but they can be reprogrammed. See “Reprogramming a Single Universal Home Remote Button” following this section. 201 Reprogramming a Single Universal Home Remote Button To program a device to Universal Home Remote using a Universal Home Remote button previously trained, follow these steps: 1. Press and hold the desired Universal Home Remote button. Do not release the button. 2. The indicator light will begin to ﬂash after 20 seconds. While still holding the Universal Home Remote button, proceed with Step 2 under “Programming Universal Home Remote” shown earlier in this section. For additional information on Universal Home Remote, see Customer Assistance Offices on page 638. Storage Areas Glove Box Open the glove box by pulling the bottom of the handle upward. 202 Cupholder(s) Your vehicle may have cupholders located in the front console, or in the fold-down armrest. Front Storage Area Your vehicle may have a center armrest storage compartment in the front bench seat. To open it, fold down the armrest and press the latch handle located at the front of the armrest. Center Console Storage Area Your vehicle may have a console compartment between the bucket seats. To open it, press the button located on the right side of the front of the lid. Your console may have a cupholder that swings down for the rear seat passengers to use. The front cupholder pulls out and swivels 180° to provide clearance between tall beverage containers and the manual transmission shift lever. Tonneau Cover If your vehicle has a tonneau cover, follow the directions below to remove the cover. 1. To remove, unsnap the cover. Roll it up and stow it using the buckle and strap located at the front of the box. A. Back rail B. Side rail C. Rear bow 2. Remove the tonneau cover from the notch in D. Center bow E. Front bow F. Front rail the front rail on the driver’s side of the vehicle. 203 4. To add cargo to the box, remove all bows and the back rail and stow them safely. 3. Remove the three bows by gently pushing them against the spring-loaded end. The three bows are labeled front, center and rear to remind you of the order in which to reinstall them. To clean the tonneau cover, use mild soap and water. If necessary, use a soft bristle brush to remove dirt trapped in the grain of the material. 204 Sunroof The vehicle may have a power sliding sunroof. To open or close the sunroof, the ignition must be on or Retained Accessory Power (RAP) must be active. See Retained Accessory Power (RAP) on page 136 for more information. The sunroof control is located on the overhead console. Press the rear of the control to open the sunroof to the vent position, then press the rear of the control again to express-open the sunroof. To close the sunroof, press and hold the front of the control. The control must be held until the glass stops moving, so that the sunroof will be fully seated. The sunroof also has a roller sunscreen that can be used to block the rays of the sun. The roller sunscreen can be manually operated with the sunroof in an open or closed position. To open the sunscreen, press up to unlatch it and roll it back. To close, pull it forward and latch it to the close position. If the battery has been recharged, disconnected, or not working, the sunroof may need to be reprogrammed. To do this, start the vehicle and press forward on the sunroof control until it moves to a fully closed position. This resets the sunroof memory, enabling the sunroof to function properly. 205 ✍ NOTES 206 Section 3 Instrument Panel Instrument Panel Overview ........................ 210 Hazard Warning Flashers .......................... 212 Other Warning Devices ............................. 212 Horn .......................................................... 212 Tilt Wheel .................................................. 213 Turn Signal/Multifunction Lever .................. 213 Turn and Lane-Change Signals ................. 214 Headlamp High/Low-Beam Changer .......... 215 Flash-to-Pass ............................................ 215 Windshield Wipers ..................................... 215 Windshield Washer .................................... 216 Cruise Control ........................................... 217 Headlamps ................................................ 220 Headlamps on Reminder ........................... 221 Daytime Running Lamps (DRL) ................. 221 Automatic Headlamp System ..................... 222 Fog Lamps ................................................ 223 Auxiliary Roof Mounted Lamp .................... 224 Instrument Panel Brightness ...................... 224 Dome Lamps ............................................. 224 Dome Lamp Override ................................ 225 Entry Lighting ............................................ 225 Exit Lighting .............................................. 225 Front Reading Lamps ................................ 225 Cargo Lamp .............................................. 226 Electric Power Management ...................... 226 Accessory Power Outlet(s) ........................ 227 Ashtray(s) and Cigarette Lighter ................ 228 Climate Controls ......................................... 228 Climate Control System ............................. 228 Dual Climate Control System ..................... 230 Dual Automatic Climate Control System .... 233 Outlet Adjustment ...................................... 241 Warning Lights, Gages, and Indicators ..... 242 Instrument Panel Cluster ........................... 243 Speedometer and Odometer ...................... 244 Trip Odometer ........................................... 244 Tachometer ............................................... 244 Safety Belt Reminder Light ........................ 245 Airbag Readiness Light ............................. 245 Airbag Off Light ......................................... 246 Passenger Airbag Status Indicator ............. 248 Battery Warning Light ................................ 251 207 Section 3 Instrument Panel Voltmeter Gage ......................................... 251 Up-Shift Light (Manual Transmission) .......... 252 Brake System Warning Light ..................... 252 Anti-Lock Brake System Warning Light ...... 253 Traction Off Light ...................................... 254 Engine Coolant Temperature Gage ............ 254 Transmission Temperature Gage ............... 255 Malfunction Indicator Lamp ........................ 256 Oil Pressure Gage ..................................... 260 Security Light ............................................ 261 Cruise Control Light .................................. 261 Highbeam On Light ................................... 261 Four-Wheel-Drive Light .............................. 261 Tow/Haul Mode Light ................................ 262 Cargo Lamp Light ..................................... 262 Fuel Gage ................................................. 262 Low Fuel Warning Light ............................ 263 Driver Information Center (DIC) .................. 263 DIC Operation and Displays ...................... 264 DIC Warnings and Messages .................... 267 DIC Vehicle Customization ........................ 279 208 Audio System(s) ......................................... 286 Setting the Time for Radios without Radio Data Systems (RDS) .................... 287 Setting the Time for Radios with Radio Data Systems (RDS) .................... 288 AM-FM Radio ............................................ 288 Radio with CD ........................................... 291 Radio with Cassette and CD ..................... 300 Radio with Six-Disc CD ............................. 313 XM Radio Messages ................................. 327 Rear Seat Entertainment System ............... 328 Rear Seat Audio (RSA) ............................. 341 Theft-Deterrent Feature ............................. 343 Audio Steering Wheel Controls .................. 343 Radio Reception ........................................ 344 Care of the Cassette Tape Player ............. 345 Care of Your CDs and DVDs .................... 347 Care of the CD and DVD Player ............... 347 Fixed Mast Antenna .................................. 347 XM™ Satellite Radio Antenna System ....... 348 Chime Level Adjustment ............................ 348 ✍ NOTES 209 Instrument Panel Overview Automatic Transmission Version shown, Manual Transmission Version similar 210 The main components of your instrument panel are the following: A. Dome Lamp Override Button. See Dome Lamp Override on page 225. I. Tow/Haul Selector Button (If Equipped). See Tow/Haul Mode on page 147. B. Headlamp Controls. See Headlamps on page 220. C. Air Outlets. See Outlet Adjustment on page 241. D. Automatic Transfer Case/Electronic Transfer Case/Traction Assist System (TAS). See Four-Wheel Drive on page 153 and Traction Assist System (TAS) on page 357. E. Multifunction Lever. See Turn Signal/Multifunction Lever on page 213. J. Audio System. See Audio System(s) on page 286. K. Climate Control System. See Climate Control System on page 228, Dual Climate Control System on page 230 and Dual Automatic Climate Control System on page 233. L. Instrument Panel Fuse Block. Instrument Panel Fuse Block on page 598. M. Cargo Lamp Button. See Cargo Lamp on page 226. F. Instrument Panel Cluster. See Instrument Panel Cluster on page 243. N. Hood Release. See Hood Release on page 475. G. Range Selection Mode (Allison Transmission® only) Button (If Equipped). See Automatic Transmission Operation on page 140. H. Shift Lever. See Automatic Transmission Operation on page 140 or Manual Transmission Operation on page 149 for manual transmissions. O. Steering Wheel Control Buttons (If Equipped). See Driver Information Center (DIC) on page 263 or Audio Steering Wheel Controls on page 343. P. Center Instrument Panel Fuse Block. See Center Instrument Panel Fuse Block on page 600. 211 Q. Parking Brake Release. See Parking Brake on page 170. R. Tilt Wheel Lever. See Tilt Wheel on page 213. S. Cigarette Lighter. See Ashtray(s) and Cigarette Lighter on page 228. T. Accessory Power Outlet. See Accessory Power Outlet(s) on page 227. U. Manual Selectable Ride Control (If Equipped). See Manual Selectable Ride on page 359. V. Auxiliary Roof Mounted Lamp Button (If Equipped). See Auxiliary Roof Mounted Lamp on page 224. W. Passenger Airbag Off Switch (If Equipped). See Airbag Off Switch on page 99. X. Glove Box. See Glove Box on page 202. Hazard Warning Flashers The hazard warning ﬂashers warn others. They also let police know you have a problem. Your front and rear turn signal lamps will ﬂash on and off. 212 The hazard warning ﬂasher button is located on top of the steering column. The hazard warning ﬂashers work no matter what ignition position the key is in, and even if the key is not in the ignition. Press the button to make the front and rear turn signal lamps ﬂash on and off. Press the button again to turn the ﬂashers off. When the hazard warning ﬂashers are on, your turn signals will not work. Other Warning Devices If you carry reﬂective triangles, you can set them up at the side of the road about 300 feet (100 m) behind your vehicle. Horn To sound the horn, press the center pad on the steering wheel. Tilt Wheel The tilt wheel will allow you to adjust the steering wheel before you drive. Raise it to the highest level to give your legs more room when you exit and enter your vehicle. Turn Signal/Multifunction Lever The tilt steering wheel lever is located on the lower left side of the column. To tilt the wheel, hold the steering wheel and pull the lever. Then move the steering wheel to a comfortable position and release the lever to lock the wheel in place. The lever on the left side of the steering column includes the following: (cid:127) G Turn and Lane Change Signals. See Turn and Lane-Change Signals on page 214. (cid:127) 53 Headlamp High/Low-Beam Changer. See Headlamp High/Low-Beam Changer on page 215. (cid:127) Flash-to-Pass. See Flash-to-Pass on page 215. (cid:127) N Windshield Wipers. See Windshield Wipers on page 215. 213 (cid:127) L Windshield Washer. See Windshield Washer on page 216. (cid:127) I Cruise Control. See Cruise Control on page 217. For information on the headlamps, see Headlamps on page 220. Turn and Lane-Change Signals The turn signal has two upward (for right) and two downward (for left) positions. These positions allow you to signal a turn or a lane change. To signal a turn, move the lever all the way up or down. When the turn is ﬁnished, the lever will return automatically. To signal a lane change, raise or lower the lever for less than one second until the arrow starts to ﬂash. This will cause the turn signals to automatically ﬂash three times. It will ﬂash six times if tow-haul mode is active. Holding the turn signal lever for more than one second will cause the turn signals to ﬂash until you release the lever. The lever will return by itself when it is released. 214 An arrow on the instrument panel cluster will ﬂash in the direction of the turn or lane change. As you signal a turn or a lane change, if the arrows ﬂash more quickly than normal, a signal bulb may be burned out and other drivers will not see your turn signal. If a bulb is burned out, replace it to help avoid an accident. If the arrows do not go on at all when you signal a turn, check for burned-out bulbs and a blown fuse. See Fuses and Circuit Breakers on page 598. Turn Signal On Chime If your turn signal is left on for more than 3/4 of a mile (1.2 km), a chime will sound at each ﬂash of the turn signal and the message TURN SIGNAL ON will also appear in the Driver Information Control (DIC). To turn the chime and message off, move the turn signal lever to the off position. Headlamp High/Low-Beam Changer 53(Headlamp High/Low Beam Changer): To change the headlamps from low to high beam, push the lever toward the instrument panel. To return to low-beam headlamps, pull the multifunction lever toward you. Then release it. When the high beams are on, this indicator light on the instrument panel cluster will also be on. Flash-to-Pass This feature lets you use your high-beam headlamps to signal a driver in front of you that you want to pass. It works even if your headlamps are in the automatic position. To use it, pull the turn signal lever toward you, then release it. If your headlamps are in the automatic position or on low beam, your high-beam headlamps will turn on. They will stay on as long as you hold the lever toward you. The high-beam indicator on the instrument panel cluster will come on. Release the lever to return to normal operation. Windshield Wipers Be sure to clear ice and snow from the wiper blades before using them. If they are frozen to the windshield, gently loosen or thaw them. Damaged wiper blades may not clear the windshield well, making it harder to see and drive safely. If the blades do become damaged, install new blades or blade inserts. For more information, see Windshield Wiper Blade Replacement on page 539. Heavy snow or ice can overload the wiper motor. A circuit breaker will stop the motor until it cools down. Clear away snow or ice to prevent an overload. 215 Windshield Washer LQ (Washer Fluid): There is a paddle marked with the windshield washer symbol at the top of the multifunction lever. To spray washer ﬂuid on the windshield, push the paddle. The wipers will clear the window and then either stop or return to your preset speed. {CAUTION: In freezing weather, do not use your washer until the windshield is warmed. Otherwise the washer ﬂuid can form ice on the windshield, blocking your vision. You control the windshield wipers by turning the band with the wiper symbol on it. 8 (Mist): For a single wiping cycle, turn the band to mist. Hold it there until the wipers start. Then let go. The wipers will stop after one wipe. If you want more wipe cycles, hold the band on mist longer. 6 (Delay): You can set the wiper speed for a long or short delay between wiping cycles. This can be very useful in light rain or snow. Turn the band to choose the delay time. The closer to the top of the lever, the shorter the delay. 6 (Low Speed): For steady wiping at low speed, turn the band away from you to the ﬁrst solid band past the delay settings. 1 (High Speed): For high-speed wiping, turn the band further, to the second solid band past the delay settings. 9 (Off): To stop the wipers, move the band to off. 216 Cruise Control 9(Off): Move the switch to this position to turn off the cruise control system. If your vehicle is has an Allison® automatic transmission, see “Grade Braking and Cruise Grade Braking (Allison Transmission®) under Tow/Haul Mode on page 147 for an explanation of how cruise control interacts with the tap up/down gear selection, tow/haul and grade braking systems. R (On): Move the switch to this position to turn on the cruise control system. + (Resume/Accelerate): Move the switch to this position to make the vehicle accelerate or resume to a previously set speed. T (Set): Press this button to set the speed. With cruise control, the vehicle can maintain a speed of about 25 mph (40 km/h) or more without keeping your foot on the accelerator. This can really help on long trips. Cruise control does not work at speeds below about 25 mph (40 km/h). If you apply your brakes, the cruise control will shut off. {CAUTION: Cruise control can be dangerous where you cannot drive safely at a steady speed. So, do not use your cruise control on winding roads or in heavy traffic. Cruise control can be dangerous on slippery roads. On such roads, fast changes in tire traction can cause excessive wheel slip, and you could lose control. Do not use cruise control on slippery roads. 217 Setting Cruise Control {CAUTION: If you leave your cruise control on when you are not using cruise, you might hit a button and go into cruise when you do not want to. You could be startled and even lose control. Keep the cruise control switch off until you want to use cruise control. 1. Move the cruise control switch to on. 2. Get up to the speed you want. 3. Press the set button at the end of the lever and release it. 4. Take your foot off the accelerator pedal. 218 The cruise symbol on the instrument panel will come on when the cruise control is engaged. Resuming a Set Speed Suppose you set your cruise control at a desired speed and then you apply the brake. This, of course, disengages the cruise control. But you do not need to reset it. Once you are going about 25 mph (40 km/h) or more, you can move the cruise control switch brieﬂy from on to resume/accelerate. You will go right back up to your chosen speed and stay there. If you hold the switch at resume/accelerate the vehicle will keep going faster until you release the switch or apply the brake. So unless you want to go faster, do not hold the switch at resume/ accelerate. Increasing Speed While Using Cruise Control There are two ways to go to a higher speed: (cid:127) Use the accelerator pedal to get to the higher speed. Press the set button, then release the set button and the accelerator pedal. You will now cruise at the higher speed. If the accelerator pedal is held longer than 60 seconds, cruise control will turn off. (cid:127) Move the cruise switch from on to resume/ accelerate. Hold it there until you get up to the speed you want, and then release the it. To increase your speed in very small amounts, move the switch brieﬂy to resume/accelerate. Each time you do this, your vehicle will go about 1 mph (1.6 km/h) faster. Reducing Speed While Using Cruise Control (cid:127) Press in the set button until you reach the desired lower speed, then release it. (cid:127) To slow down in very small amounts, brieﬂy press the set button. Each time you do this, you will go about 1 mph (1.6 km/h) slower. Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to increase your speed. When you take your foot off the pedal, your vehicle will slow down to the cruise control speed you set earlier. Using Cruise Control on Hills How well your cruise control will work on hills depends upon your speed, load and the steepness of the hills. When going up steep hills, you may want to step on the accelerator pedal to maintain your speed. When going downhill, you may have to brake or shift to a lower gear to keep your speed down. Of course, applying the brake takes you out of cruise control. Many drivers ﬁnd this to be too much trouble and do not use cruise control on steep hills. 219 Headlamps Ending Cruise Control There are four ways to turn off the cruise control: (cid:127) Step lightly on the brake pedal, (cid:127) Move the cruise control switch to off, or (cid:127) Shift the transmission to NEUTRAL (N). (cid:127) Hold the accelerator pedal for 60 seconds or longer. Erasing Speed Memory When you turn off the cruise control or the ignition, your cruise control set speed memory is erased. The control on the driver’s side of your instrument panel operates the headlamps. The headlamp control has four positions: 9(Off): Turn the control to this position to turn off the Daytime Running Lamps (DRL) and the automatic headlamps. AUTO (Automatic): Turn the control to this position to activate the automatic headlamp mode. 220 Instrument Panel Lights ; (Parking Lamps): Turn the control to this position to turn on the parking lamps, together with the following: (cid:127) Sidemarker Lamps (cid:127) Taillamps (cid:127) License Plate Lamps (cid:127) (cid:127) Roof Marker Lamps (If the vehicle has them) 5(Headlamps): Turn the control to this position to turn on the headlamps, together with the previously listed lamps and lights. Switch the headlamps from high to low-beam by pushing the turn signal/high-beam lever towards the instrument panel. A circuit breaker protects the headlamps. If you have an electrical overload, the headlamps will ﬂicker on and off. Have your headlamp wiring checked right away if this happens. Headlamps on Reminder A reminder chime will sound when the headlamps or parking lamps are manually turned on and your ignition is off and a door is open. To disable the chime, turn the light off. 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 DRL are required on all vehicles ﬁrst sold in Canada. The DRL system will come on when the following conditions are met: (cid:127) The ignition is on (cid:127) The exterior lamps control is in AUTO (cid:127) The light sensor determines it is daytime When the DRL are on, only your DRL lamps will be on. The taillamps, sidemarker, and other lamps will not be on. The instrument panel back lighting will not be on either. 221 When it begins to get dark, the automatic headlamp system will switch from DRL to the headlamps. When you turn the headlamp switch off, the headlamps will go off. Automatic Headlamp System When it is dark enough outside, the automatic headlamp system will turn on the headlamps at the normal brightness, along with the taillamps, sidemarker, parking lamps, and the instrument panel lights. The radio back lighting will also be dimly lit. To turn off the automatic headlamp system, turn the exterior lamps switch to the off position. Turning off the automatic headlamp system with the headlamp switch is not available for vehicles ﬁrst sold in Canada. Your vehicle has a light sensor located on the top of the instrument panel in the defroster grille that regulates when the automatic headlamps turn on. Be sure it is not covered, or the headlamps will come on whenever the ignition is on. The system may also turn on the headlamps when driving through a parking garage, heavy overcast weather, or a tunnel. This is normal. There is a delay in the transition between the daytime and nighttime operation of the Daytime Running Lamps (DRL) and the automatic headlamp systems so that driving under bridges or bright overhead street lights does not affect the system. The DRL and automatic headlamp system will only be affected when the light sensor detects a change in lighting lasting longer than the delay. 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 approximately one minute for the automatic headlamp system to change to DRL if it is bright enough outside. During that delay, your instrument panel cluster may not be as bright as usual. Make sure your instrument panel brightness control is in the full bright position. See Instrument Panel Brightness on page 224. To idle your vehicle with the automatic headlamp system off, turn the control to the off position. 222 You may be able to turn off your Automatic Headlamp System. See Daytime Running Lamps (DRL) on page 221 for more information. Your headlamps will also stay on after you exit the vehicle. You can program this feature using the Driver Information Center (DIC). See DIC Vehicle Customization on page 279. As with any vehicle, you should turn on the regular headlamp system when needed. Fog Lamps If your vehicle has fog lamps, use them for better vision in foggy or misty conditions. The fog lamp button is located on the left side of the instrument panel. The parking lamps and/or low-beam headlamps must be on for the fog lamps to work. Press the button to turn the fog lamps on or off. An indicator light will glow in the button when the fog lamps are on. Remember, fog lamps alone will not give off as much light as the headlamps. Never use the fog lamps in the dark without turning on the headlamps. The fog lamps will go off whenever the high-beam headlamps come on. When the high beams go off, the fog lamps will come on again. The fog lamps will be cancelled after the ignition is turned off. If you still want to use the fog lamps after you restart the vehicle, you will need to press the fog lamp button again. Some localities have laws that require the headlamps to be on along with the fog lamps. 223 Auxiliary Roof Mounted Lamp If your vehicle has this feature, this button includes wiring provisions for a dealer or a qualiﬁed service center to install an auxiliary roof lamp. This button is located on the center of the instrument panel near the climate controls. When the wiring is connected to an auxiliary roof mounted lamp, pressing the button will activate the lamp and illuminate an indicator light near the button. Pressing the button again will turn off the roof mounted lamp. If your vehicle has this button, your vehicle may have the snow plow prep package. For further information see Adding a Snow Plow or Similar Equipment on page 410. 224 Instrument Panel Brightness D (Instrument Panel Brightness): This feature controls the brightness of the instrument panel lights. The thumbwheel for this feature is located next to the headlamp control. Move the thumbwheel up to adjust the instrument panel lights and to return the radio display to full brightness when the headlamps or parking lamps are on. To turn on the dome lamps, move the thumbwheel to the farthest position. Dome Lamps The dome lamps come on when a door is opened. The dome lamps can be turned on by moving the thumbwheel, located next to the exterior lamps control, to the farthest position. In this position, the dome lamps will remain on whether a door is opened or closed. Dome Lamp Override E (Dome Lamp Override): You can use the dome override button, located below the exterior lamps control, to set the dome lamps to come on automatically when a door is opened, or to remain off. To turn the lamps off, press the button in. With the button in this position, the dome lamps will remain off when the doors are open. To return the lamps to automatic operation, press the button again to return it to the extended position. With the button in this position, the dome lamps will come on when you open a door. Entry Lighting Your vehicle has an illuminated entry feature. When the doors are opened, the dome lamps will come on if the dome override button is in the extended position. If the dome override button is pressed in, the lamps will not come on. Exit Lighting With exit lighting, the interior lamps will come on when the key is removed from the ignition. They will turn off automatically in 20 seconds. The lights will not come on if the dome override button is pressed in. Front Reading Lamps The reading lamps are located on the overhead console. To turn the reading lamps on or off, press the button located next to each lamp. The lamps can be adjusted to a desired direction. Your vehicle may also have reading lamps in other locations. To turn the lamps on or off, press the button located next to the lamp. These lamps are ﬁxed and cannot be adjusted. 225 Cargo Lamp The cargo lamp button is located on the left side of the instrument panel. Press the button to turn the cargo lamp on or off. An indicator light on the instrument panel cluster will come on when the cargo lamp is turned on, and the ignition key is turned to RUN. Electric Power Management This vehicle has Electric Power Management (EPM), an advanced control system. It estimates the battery’s temperature and state of charge and 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, you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed. 226 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 Battery Voltage Low. If this message is displayed, it is recommended that the driver reduce the electrical loads as much as possible. Accessory Power Outlet(s) Accessory power outlets can be used to connect auxiliary electrical equipment, such as a cellular telephone or CB radio. The outlet can accept electrical equipment up to a maximum of 20 amperes. Your vehicle may have two accessory power outlets, or may have one accessory power outlet located near the cigarette lighter, if the vehicle has one. The cigarette lighter is designed to ﬁt only in the receptacle to the right of the accessory power outlet. To use an outlet, remove the protective cap. When not in use, always cover the outlet with the protective cap. The accessory power outlet is operational at all times. Notice: into a power outlet, the battery may drain causing your vehicle not to start or damage to the battery. This would not be covered by the warranty. Always unplug all electrical devices when turning off your vehicle. If electrical devices are left plugged Certain power accessory 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 plugs. 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 before adding electrical equipment. When adding electrical equipment, be sure to follow the proper installation instructions included with the equipment. 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. 227 If you put papers, pins, or other Ashtray(s) and Cigarette Lighter Your vehicle may have a front ashtray located near the center of the instrument panel. Pull on the door to open it. Notice: 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. To remove the front ashtray, pull the ashtray toward you. To replace the ashtray, place the ashtray on the slides at the side of its location in the instrument panel. To use the cigarette lighter, push it in all the way, and let go. When it is ready, the lighter will pop back out by itself. 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. 228 Climate Controls Climate Control System Fan Knob The fan knob on the left side of the control panel adjusts the fan speed. Turn the knob clockwise or counterclockwise, to increase or decrease airﬂow. To turn the fan off, turn the knob to the off position. 9(Off): If the fan is off, outside air will still enter the vehicle, and will be directed based on the position of the mode knob. The temperature can also be adjusted using the temperature knob. Temperature Knob The middle knob on the control panel lets you select the temperature of the air ﬂowing into the passenger area. Turn the knob clockwise toward the red area for warmer air. Turn the knob counterclockwise toward the blue area for cooler air. Mode Knob The right knob on the control panel allows you to choose the direction of air delivery. H (Vent): This mode directs the air through the instrument panel outlets. ) (Bi-Level): This mode directs air through the ﬂoor outlets as well as the instrument panel outlets. The ﬂow can be divided between vent and ﬂoor outlets depending upon where the knob is placed between the settings. 6(Floor): This mode directs most of the air through the ﬂoor outlets, and the rest of the air is divided between the windshield defroster outlets and the side window defroster outlets. W (Defog): Airﬂow is delivered through the ﬂoor outlets, the windshield defroster outlets, and the side window defroster outlets. The air ﬂow can be divided between ﬂoor and defrost depending upon where the knob is placed between the settings. 1(Defrost): This setting directs most air through the windshield defroster outlets, side window defroster outlets, and some through the ﬂoor outlets. 229 Dual Climate Control System With this system you can control the heating, cooling, and ventilation for your vehicle. Fan Control 9(Fan): Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed. Turn the knob to the off position to turn off the fan. If the knob is in off, outside air will still enter the vehicle and will be directed based on the position of the mode knob. The temperature can also be adjusted using the temperature levers. Turn the right knob clockwise or counterclockwise to direct the airﬂow inside of your vehicle. 230 Mode Control To change the current mode, select one of the following: H (Vent): This mode directs air to the instrument panel outlets. ) (Bi-Level): This mode directs half of the air to the instrument panel outlets; then directs most of the remaining air to the ﬂoor outlets. A little air is directed toward the windshield and the side window outlets. Cooler air is directed to the upper outlets and warmer air to the ﬂoor outlets. 6(Floor): This mode directs most of the air to the ﬂoor outlets with a little air directed to the windshield and the side window outlets. h (Recirculation): The recirculation mode is used to recirculate the air inside of your vehicle. Use this mode to help prevent outside odors and/or dust from entering your vehicle or to help cool the air inside of your vehicle more quickly. Press this button to turn the recirculation mode on or off. The light on the recirculation button will illuminate. Recirculation cannot be used in ﬂoor, defog or defrost modes. An indicator on the button will light up, ﬂash three times and turn off when recirculation is selected in these modes. The air-conditioning compressor will also come on when this mode is activated. While in recirculation mode the windows may fog when the weather is cold and damp. To clear the fog, select either the defog or defrost mode and increase fan speed. Temperature Control Driver’s Side: The lever on the left side of the climate control panel is used to raise or lower the temperature on the driver’s side of the vehicle. This lever also adjusts the temperature to the center console outlets, if the vehicle has them. Passenger’s Side: The lever on the right side of the climate control panel is used to raise or lower the temperature on the passenger’s side of the vehicle. # (Air Conditioning): Press this button to turn the air-conditioning system on or off. When the button is pressed, an indicator light will come on and the system will begin to cool and dehumidify the air inside of your vehicle. You may notice a slight change in engine performance when the air conditioning compressor shuts off and turns on again. This is normal. Defogging and Defrosting Fog on the inside of the 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 choose from to clear fog or frost from your 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. Turn the right knob to select one of the following modes: - (Defog): This mode directs the air to the ﬂoor outlets, windshield and the side window outlets. The air conditioning compressor will run automatically to dehumidify the air to prevent window fogging. The recirculation mode cannot be selected while in the defog mode. 231 1(Defrost): This mode directs most of the air to the windshield and the side window outlets, with only a little air directed to the ﬂoor outlets. The air conditioning compressor will run automatically to dehumidify the air to prevent window fogging. The recirculation mode cannot be selected while in defrost mode. Do not drive the vehicle until all the windows are clear. Rear Window Defogger If your vehicle has this feature, the rear window defogger uses a warming grid to remove fog from the rear window. If your vehicle has a sliding rear window, you will not have a rear window defogger. < (Rear): Press this button to turn the rear window defogger on or off. An indicator light in the button will come on to let you know that the rear window defogger is activated. This button will also activate the heated mirrors, if the vehicle has them. The rear window defogger will automatically turn off several minutes after the button is pressed. Pressing the button while the defogger is running can also turn off the defogger. W (Mirror): If your vehicle does not have a rear defogger and has heated mirrors, your vehicle will have this button to activate the heated mirrors. Notice: Do not use anything sharp on the inside of the rear window. If you do, you could cut or damage the warming grid, and the repairs would not be covered by your warranty. Do not attach a temporary vehicle license, tape, a decal or anything similar to the defogger grid. 232 Dual Automatic Climate Control System With this system, you can control the heating, cooling, and ventilation in your vehicle. Your vehicle also has a ﬂow-through ventilation system described later in this section. Driver’s Side Temperature Knob The driver’s side knob is used to adjust the temperature of the air coming through the system on the driver’s side. The temperature can be adjusted even if the system is turned off. This is possible since outside air will always ﬂow through the system as the vehicle is moving forward unless it is set to recirculation mode. See “Recirculation” later in this section. Turn the knob counterclockwise or clockwise to lower or increase the cabin temperature. The display will show the temperature setting decreasing or increasing and an arrow pointing to the driver will be displayed under and to the left of the temperature setting. You can select different climate control settings for the driver and passengers. 233 Passenger’s Side Temperature Knob The passenger’s side knob can be used to change the temperature of the air coming through the system on the passenger’s side of the vehicle. The temperature can be adjusted even if the system is turned off. This is possible since outside air will always ﬂow through the system as the vehicle is moving forward unless it is set to recirculation mode. See “Recirculation” later in this section. Turn the knob counterclockwise or clockwise to lower or increase the cabin temperature. The display will show the temperature setting decreasing or increasing and an arrow pointing to the passenger will be displayed under and to the right of the temperature setting. The passenger’s temperature setting can be set to match the driver’s temperature setting by pressing and holding the AUTO button for four seconds. Both the driver and passenger arrows will be displayed. Automatic Operation AUTO (Automatic): When automatic operation is active the system will control the inside temperature, the air delivery, and the fan speed. 234 Use the steps below to place the entire system in automatic mode: 1. Press the AUTO button. When AUTO is selected, the display will change to show the current driver’s set temperature, delivery mode and fan speed. Press the AUTO button again within ﬁve seconds to display the passenger’s set temperature. If the driver and passenger’s temperature settings are not the same, the opposite side temperature setting will be displayed for an additional ﬁve seconds. To make the passenger’s temperature the same as the driver’s press and hold the AUTO button for about four seconds. When AUTO is selected, the air conditioning operation and air inlet will be automatically controlled. The air conditioning compressor will run when the outside temperature is over about 40°F (4°C). The air inlet will normally be set to outside air. If it is hot outside, the air inlet may automatically switch to recirculate inside air to help quickly cool down your vehicle. The light on the button will come on in recirculation. 2. Set the driver’s and passenger’s temperature. To ﬁnd your comfort setting, start with a 74°F (23°C) temperature setting and allow about 20 minutes for the system to regulate. Turn the driver’s or passenger’s side temperature knob to adjust the temperature setting as necessary. If you choose the temperature setting of 60°F (15°C) the system will remain at the maximum cooling setting. If you choose the temperature setting of 90°F (32°C) the system will remain at the maximum heat setting. Choosing either maximum setting will not cause the vehicle to heat or cool any faster. Be careful not to cover the solar sensor located on the top of the instrument panel near the windshield. This sensor regulates air temperature based on sun intensity. It also turns on the headlamps. For more information on the solar sensor, see “Sensors” later in this section. To avoid blowing cold air in cold weather, the system will delay turning on the fan until warm air is available. The length of delay depends on the engine coolant temperature. Pressing the fan switch will override this delay and change the fan to a selected speed. 9(Off): Press this button to turn off the entire climate control system. Outside air will still enter the vehicle, and will be directed to the ﬂoor. This direction can be changed by pressing the mode button. The temperature can also be adjusted using either temperature knob. Press the up or down arrows on the fan switch, the defrost button, the AUTO button, or the air conditioning button to turn the system on when it is off. 235 Manual Operation You may manually adjust the air delivery mode or fan speed. w9x(Fan): The switch with the fan symbol allows you to manually adjust the fan speed. Press the up arrow to increase fan speed and the down arrow to decrease fan speed. Pressing this button when the system is off will turn the system on. C (Mode): Press this button to manually change the direction of the airﬂow in your vehicle; repeatedly press the button until the desired mode appears on the display. If you press the mode button to select an air delivery mode, the display will change to show you the selected air mode delivery. The display will then show the current status of the system. When the system is turned off, the display will go blank after displaying the current status of the system. H (Panel): This mode directs air to the instrument panel outlets. ) (Bi-Level): This mode directs warmer air to the ﬂoor and cooler air to the instrument panel outlets. 6(Floor): This mode directs air to the ﬂoor outlets. - (Defog): See “Defogging and Defrosting” later in this section. @ (Recirculation): Press this button to limit the amount of outside air entering your vehicle. The light on the recirculation button will glow. This is helpful when you are trying to limit odors entering your vehicle and for maximum air conditioning performance in hot weather. Press this button again to allow outside air to enter the vehicle. The light on the recirculation button will go off. Pressing this button also cancels the auto recirculation feature. To resume the auto recirculation function, press the AUTO button. Each time the vehicle is started, the system will revert to the auto recirculation function. 236 If you select recirculation while in defrost, defog, or ﬂoor, the light in the button will ﬂash and then go out to let you know that this is not allowed. This is normal and helps to prevent fogging. When the weather is cool or damp, operating the system in recirculation for extended periods of time may cause fogging of the vehicle’s windows. To clear the fog, select either defog or front defrost. You may also notice that the air condition compressor will run while in recirculation mode. This is normal and helps to prevent fogging. 9(Off): Press this button to turn off the entire climate control system. Outside air will still enter the vehicle, and will be directed to the ﬂoor. This direction can be changed by pressing the mode button. The temperature can also be adjusted using either temperature knob. Press the up or down arrows on the fan switch, the defrost button, the AUTO button, or the air conditioning button to turn the system on when it is off. Display If you press the mode button to select an air delivery mode, the display will change to show you the selected air delivery mode. After ten seconds, the display will change to show the driver temperature setting and the selected mode. If you press the up or down arrows on the fan switch, the display will change to show the selected fan speed. After ten seconds, the display will change to show the driver temperature setting and the selected mode. Whenever you press AUTO, the display will change to show the following: (cid:127) The current driver’s set temperature and an arrow for ﬁve seconds (cid:127) The current passenger’s set temperature setting and an arrow for ﬁve seconds (cid:127) The automatic air delivery mode and fan speed 237 If the driver’s and passenger’s temperature settings are the same when AUTO is pressed, the temperature setting and both arrows will be displayed for ﬁve seconds along with the automatic air delivery mode and fan speed. After the ﬁve second update, the display will change to show the temperature setting, both arrows, and AUTO. Air Conditioning # (Air Conditioning): Press this button to turn the air conditioning (A/C) compressor on and off. The snowﬂake symbol will appear on the display when the A/C is on and will turn off when the air conditioning is off. Pressing this button when the outside temperature is too cool for air conditioning will make the snowﬂake symbol ﬂash three times and then turn off to let you know the air conditioning mode is not available. If the air conditioning is on and the outside temperature drops below a temperature which is too cool for air conditioning to be effective, the snowﬂake symbol will turn off to let you know the air conditioning mode has been canceled. When air conditioning is selected or in AUTO mode, the system will run the air conditioning automatically to cool and dehumidify the air entering the vehicle. If you select A/C off while in front defrost, defog or recirculation, the A/C snowﬂake symbol will turn off, but the A/C compressor will still run to help prevent fogging. On hot days, open the windows long enough to let hot inside air escape. This reduces the time it takes for your vehicle to cool down. Then keep your windows closed for the air conditioner to work its best. On cool, but sunny days while using manual operation of the automatic system, use bi-level to deliver warm air to the ﬂoor and cooler air to the instrument panel outlets. To warm or cool the air delivered, turn the temperature knob to the desired setting. In AUTO mode the system will cool and dehumidify the air inside the vehicle. Also while in AUTO mode, the system will maximize its performance by using recirculation as necessary. 238 Sensors The solar sensor, located in the defrost grille, that is in the middle of the instrument panel, monitors the solar radiation. Do not cover the solar sensor or the system will not work properly. There is an interior temperature sensor located next to the steering wheel that measures the temperature of the air inside your vehicle. 239 There is also an exterior temperature sensor located behind the front grille. This sensor reads the outside air temperature and helps maintain the temperature inside the vehicle. Any cover on the front of the vehicle could cause a false reading in the displayed temperature. In order to prevent false temperature readings at startup, the displayed temperature will not change until the following occurs: (cid:127) Vehicle speed is above 10 mph (16 kmh) for 5 minutes. (cid:127) Vehicle speed is above 32 mph (51 kmh) for 2 and a half minutes. The climate control system uses the information from these sensors to maintain your comfort setting by adjusting the outlet temperature, fan speed, and the air delivery mode. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be used as needed to maintain cool outlet temperatures. 240 Defogging and Defrosting You can use either defog or front defrost to clear fog or frost from your windshield. Use the defog mode to clear the windows of fog or moisture. Use the front defrost button to defrost the front windshield. - (Defog): Use this setting to clear the windows of fog or moisture. Press the mode button to select this setting. This setting will deliver air to the ﬂoor and windshield outlets. 0(Front Defrost): Press the front defrost button to defrost the windshield. The system will automatically control the fan speed if you select defrost from AUTO mode. If the outside temperature is 40°F (4°C) or warmer, your air conditioning compressor will automatically run to help dehumidify the air and dry the windshield. Rear Window Defogger If your vehicle has this feature, the rear window defogger uses a warming grid to remove fog from the rear window. If your vehicle has a sliding rear window, you will not have a rear window defogger. < (Rear): Press this button to turn the rear window defogger on or off. An indicator light in the button will come on to let you know that the rear window defogger is activated. This button will also activate the heated mirrors, if the vehicle has them. The rear window defogger will automatically turn off several minutes after the button is pressed. Pressing the button while the defogger is running can also turn off the defogger. W (Mirror): If your vehicle does not have a rear defogger and has heated mirrors, your vehicle will have this button to activate them. 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. Outlet Adjustment Use the air outlets located in the center and on the side of your instrument panel to direct the airﬂow. Operation Tips (cid:127) Keep the hood and front air inlets free of ice, snow, or any other obstruction (such as leaves). The heater and defroster will work better, reducing the chance of fogging the inside of your windows. (cid:127) When you enter a vehicle in cold weather, set the fan speed to maximum airﬂow for a few moments before driving. This helps clear the intake ducts of snow and moisture, and reduces the chance of fogging the inside of your window. (cid:127) Keep the air path under the front seats clear of objects. This helps air to circulate throughout your vehicle. (cid:127) Adding outside equipment to the front of your vehicle, such as hood-air deﬂectors, may affect the performance of the heating and air conditioning system. Check with your dealer before adding equipment to the outside of your vehicle. 241 Warning Lights, Gages, and Indicators This part describes the warning lights and gages 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 your 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 when 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. Please follow this manual’s advice. 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 warning lights and gages. See DIC Warnings and Messages on page 267. 242 Instrument Panel Cluster United States Heavy Duty Automatic Transmission version shown. Canada, Light Duty Automatic and Manual Transmission Clusters similar. Your instrument cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you are going, about how much fuel you have and many other things you will need to know to drive safely and economically. 243 Speedometer and Odometer Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h). Your odometer shows how far your vehicle has been driven, in either miles (used in the United States) or kilometers (used in Canada). Engine Hour Meter Display The Driver Information Center (DIC) can also display the number of hours the engine has run. To display the hour meter, turn the ignition off, press and hold the reset button for at least four seconds. The hour meter will be displayed for up to 30 seconds, or until the ignition is turned on. See DIC Operation and Displays on page 264 for more information. Trip Odometer The trip odometer can tell you how far your vehicle has been driven since you last set the trip odometer to zero. Press the reset button, located on the instrument panel cluster next to the trip odometer display, to toggle between the trip odometer and the regular odometer. Holding the reset button for approximately one second while the trip odometer is displayed will reset it. To display the odometer reading with the ignition off, press the reset button. See DIC Operation and Displays on page 264 for more information. Tachometer Your tachometer displays the engine speed in revolutions per minute (rpm). See “Grade Braking (Allison Transmission®)” under Tow/Haul Mode on page 147 for more information. Notice: tachometer in the solid red area, your vehicle could be damaged. The damages would not be covered by your warranty. Do not operate the engine in the solid red area. If you operate the engine with the 244 Safety Belt Reminder Light When the key is turned to RUN or START, a chime will sound for several seconds to remind people to buckle their safety belts. The driver safety belt light will also come on and stay on for several seconds, then it will ﬂash for several more. You should buckle your seat belt. This chime and light will be repeated if the driver remains unbuckled and the vehicle is in motion. See DIC Warnings and Messages on page 267 for more information on driver and passenger safety belt reminders. If the driver’s belt is buckled, neither the chime nor the light will come on. See Passenger Sensing System on page 103 for more information. 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 sensors, the airbag modules, the wiring and the crash sensing and diagnostic module and, if equipped, the passenger sensing system. For more information on the airbag system, see Airbag System on page 92. This light will come on when you start your vehicle, and it will ﬂash for a few seconds. This means the system is ready. If the airbag readiness light stays on after the vehicle is started or comes on while you are driving, the airbag system may not be working properly. Have your vehicle serviced right away. 245 When you turn the right front passenger’s airbag off, this light will come on and stay on to remind you that the airbag has been turned off. This light will go off when you turn the airbag on. {CAUTION: If the right front passenger’s airbag is turned off for a person who is not in a risk group identiﬁed by the national government, that person will not have the extra protection of an airbag. In a crash, the airbag will not be able to inﬂate and help protect the person sitting there. Do not turn off the passenger’s airbag unless the person sitting there is in a risk group. See Airbag Off Switch on page 99 for more on this, including important safety information. Airbag Off Light If your vehicle has an airbag off switch, it also has an airbag off light. See Airbag Off Switch on page 99 for more on this, including important safety information. United States Canada 246 {CAUTION: If the airbag readiness light ever comes on when you have turned off the airbag, it means that something may be wrong with the airbag system. The right front passenger’s airbag could inﬂate even though the switch is off. If your vehicle is a regular cab pickup and this ever happens, do not let anyone whom the national government has identiﬁed as a member of a passenger airbag risk group sit in the right front CAUTION: (Continued) CAUTION: (Continued) passenger’s position (for example, do not secure a rear-facing child restraint in your vehicle) until you have your vehicle serviced. If your vehicle is an extended cab pickup and this ever happens, do not let anyone whom the national government has identiﬁed as a member of the passenger airbag risk group sit in the right front passenger’s position (for example, do not secure a rear-facing child restraint in the right front passenger’s seat) until you have your vehicle serviced. 247 Passenger Airbag Status Indicator If your vehicle has the passenger sensing system, your rearview mirror will have a passenger airbag status indicator. United States Canada When the ignition key is turned to RUN or START, the passenger airbag status indicator will light ON and OFF, or the symbol for on and off, for several seconds as a system check. Then, after several more seconds, the status indicator 248 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. Your vehicle may have a label on your sun visor that says, “Never put a rear-facing child seat in the front.” This is because the risk to the rear-facing child is so great, if the airbag deploys. {CAUTION: Even though the passenger sensing system is designed to turn off the passenger’s frontal airbag if the system detects a rear-facing child restraint, no system is failsafe, 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. Never put a child in a rear-facing child restraint in the right front passenger seat the unless passenger airbag status indicator shows off. Never put a rear facing child restraint in the right front passenger seat unless the airbag is off. Here is why: {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. {CAUTION: Even though the passenger sensing system is designed to turn off the 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 transported in vehicles with a rear seat that will accommodate a rear-facing child restraint, whenever possible. 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). 249 If, after several seconds, all 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 for service. {CAUTION: If the airbag off indicator and the airbag readiness light ever come on together, 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 seat may not have the protection of the airbag. See Airbag Readiness Light on page 245. If the word OFF or the off symbol is lit on the passenger airbag status indicator, it means that the passenger sensing system has turned off the right front passenger’s airbag. See Passenger Sensing System on page 103 or Airbag Off Switch on page 99 for more on this, including important safety information. {CAUTION: If the right front passenger’s airbag is turned off for a person who is not in a risk group identiﬁed by the national government, that person will not have the extra protection of an airbag. In a crash, the airbag will not be able to inﬂate and help protect the person sitting there. Do not turn off the passenger’s airbag unless the person sitting there is in a risk group. See Airbag Off Switch on page 99 for more on this, including important safety information. 250 Battery Warning Light Voltmeter Gage If this light comes on when the engine is running, there could be a problem with the charging system. When the engine is not running, but the ignition is in RUN, this gage shows your battery’s state of charge in DC volts. The battery display will also stay on while the key is in RUN until the engine is started. If the light stays on after starting the engine it could indicate a problem with the generator drive belt, or some other charging system problem. Have it checked right away. Driving while this light is on could drain the battery. If you must drive a short distance with this light on, it helps to turn off all your accessories, such as the radio and the air conditioner. While the engine is running, this gage shows the condition of the charging system. The gage may transition from a higher to lower or a lower to higher reading. This is normal. Readings between the low and high warning zones indicate the normal operating range. The voltmeter gage may also read lower when in fuel economy mode. This is normal. Readings in the low warning zone may occur when a large number of electrical accessories are operating in the vehicle and the engine is left at an idle for an extended period. This condition is normal since the charging system is not able to provide full power at engine idle. 251 As engine speeds are increased, this condition should correct itself as higher engine speeds allow the charging system to create maximum power. You can only drive for a short time with the reading in either warning zone. If you must drive, turn off all unnecessary accessories. Readings in either warning zone indicate a possible problem in the electrical system. Have the vehicle serviced as soon as possible. Up-Shift Light (Manual Transmission) Your vehicle may have an up-shift light. Brake System Warning Light With the ignition on, the brake system warning light will ﬂash when you set the parking brake. The light will ﬂash if the parking brake does not release fully. If you try to drive with the parking brake engaged, a chime will sound when the vehicle speed is greater than 3 mph (5 km/h). Your vehicle’s hydraulic brake system is divided into two parts. If one part is not 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 and a chime sounds there could be a brake problem. Have your brake system inspected right away. It will come on when you should shift to the next highest gear. It will help the vehicle get the best fuel economy. United States Canada 252 This light should come on brieﬂy when you turn the ignition key to RUN. If it does not come on then, have it ﬁxed so it will be ready to warn you if there is a 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 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 417. {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. Anti-Lock Brake System Warning Light With the Anti-Lock Brake System (ABS), this light will come on when you start your engine and may stay on for several seconds. 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 light stays on, or comes on when you are driving, your vehicle needs service. A chime will sound when the light stays on. If the regular brake system warning light is not on, you still have brakes, but you do not have ABS. If the regular brake system warning light is also on you do not have ABS and there is a problem with your regular brakes. In addition to both lights, you will also hear a chime sound on the ﬁrst occurrence of a problem and each time the vehicle is shut off and then restarted. See Brake System Warning Light on page 252. 253 The ABS warning light should come on brieﬂy when you turn the ignition key to RUN. If the light does not come on then, have it ﬁxed so it will be ready to warn you if there is a problem. Traction Off Light If your vehicle has the Traction Assist System, this light should come on brieﬂy when you turn the ignition to RUN. If the light does not come on then, the system may require service. Have it ﬁxed so it will be there to warn you if the system is turned off. If the light stays on, or comes on when you are driving, there may be a problem with your Traction Assist System and your vehicle may need service. When this light is on, the system will not limit wheel spin. Adjust your driving accordingly. 254 Engine Coolant Temperature Gage United States Canada This gage shows the engine coolant temperature. It also provides an indicator of how hard your vehicle is working. During a majority of the operation, the gage will read 210°F (100°C) or less. If you are pulling a load or going up hills, it is normal for the temperature to ﬂuctuate and approach the 250°F (122°C) mark. If the gage reaches the 260°F (125°C) mark, it indicates that the cooling system is working beyond its capacity. See Engine Overheating on page 502. Transmission Temperature Gage United States Canada Your vehicle may have a transmission temperature gage. When your ignition is on, the gage shows the temperature of the transmission ﬂuid. The normal operating range is from 100°F (38°C) to about 265°F (130°C). At approximately 265°F (130°C), the Driver Information Center (DIC) will display a TRANSMISSION HOT message and the transmission will enter a transmission protection mode. When the transmission enters the protection mode, you may notice a change in the transmission shifting patterns. The transmission will return to normal shifting patterns when the transmission ﬂuid temperature falls below 260°F (125°C). See Driver Information Center (DIC) on page 263 for further information. If your vehicle has an Allison® transmission, and the ﬂuid reaches temperatures of approximately 275°F (135°C) or greater, the DIC will display a TRANS HOT IDLE ENGINE warning message and a chime will sound until the temperature falls below 265°F (130°C). Pull the vehicle off the roadway when it is safe to do so. Set the parking brake, place the transmission in PARK (P) and allow the engine to idle until the transmission temperature falls below 265°F (130°C). 255 If you drive your vehicle with the If the transmission continues to operate above 265°F (130°C), contact your nearest dealer or the GM Roadside Assistance Center. See Roadside Assistance Program on page 640. Notice: transmission temperature gage above normal operating range, you can damage the transmission. This could lead to costly repairs that would not be covered by your warranty. Do not drive your vehicle while the transmission temperature gage reading is above normal. See your dealer for service. The following situations can cause the transmission to operate at higher temperatures: (cid:127) Towing a trailer (cid:127) Hot outside air temperatures (cid:127) Hauling a large or heavy load (cid:127) Low transmission ﬂuid level (cid:127) High transmission ﬂuid level (cid:127) Restricted air ﬂow to the radiator and the auxiliary transmission oil cooler, if equipped. A temporary solution to reduce hotter transmission operating temperatures may be to let the transmission cool down. 256 If the transmission is operated at higher temperatures on a frequent basis, see Scheduled Maintenance (Gasoline Engine) on page 615 for the proper transmission maintenance intervals. Malfunction Indicator Lamp Check Engine Light Your vehicle has a computer which monitors operation of the fuel, ignition, and emission control systems. This system is called OBD II (On-Board Diagnostics-Second Generation) and is intended to assure 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 a problem and service is required. Malfunctions often will be indicated by the system before any problem is apparent. This may prevent more serious damage to your vehicle. This system is also designed to assist your service technician in correctly diagnosing any malfunction. If you keep driving your vehicle with Notice: this light on, after awhile, your emission controls may not work as well, your fuel economy may not be as good, and your engine may not run as smoothly. This could lead to costly repairs that may not be covered by your warranty. 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 may cause this light to come on. Modiﬁcations to these systems could lead to costly repairs not covered by your warranty. This may also result in a failure to pass a required Emission Inspection/Maintenance test. See Accessories and Modiﬁcations on page 464. This light should come on, as a check to show you it is working, when the ignition is on and the engine is not running. If the light does not come on, have it repaired. This light will also come on during a malfunction in one of two ways: (cid:127) Light Flashing — A misﬁre condition has been detected. A misﬁre increases vehicle emissions and may damage the emission control system on your vehicle. Diagnosis and service may be required. (cid:127) Light On Steady — An emission control system malfunction has been detected on your vehicle. Diagnosis and service may be required. 257 If the Light Is On Steady You may 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 471. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap will allow fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn the light off. If the Light is Flashing The following may prevent more serious damage to your vehicle: (cid:127) Reducing vehicle speed (cid:127) Avoiding hard accelerations (cid:127) Avoiding steep uphill grades (cid:127) If you are towing a trailer, reduce the amount of cargo being hauled as soon as it is possible 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 your vehicle. Turn the key 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 for service as soon as possible. 258 Did you just drive through a deep puddle of water? If so, your electrical system may be wet. The condition will usually be 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 467. Poor fuel quality will cause your engine not to run as efficiently as designed. You may 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 may 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 can check the vehicle. Your dealer has the proper test equipment and diagnostic tools to ﬁx any mechanical or electrical problems that may have developed. Emissions Inspection and Maintenance Programs Some state/provincial and local governments have or may 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. 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 your battery or if your 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 GM dealer can prepare the vehicle for inspection. 259 Oil Pressure Gage United States Canada The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals). Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range. 260 A reading in the low pressure zone may be caused by a dangerously low oil level or some other problem causing low oil pressure. Check your oil as soon as possible. See “OIL PRESSURE LOW” under DIC Warnings and Messages on page 267 and Engine Oil (Gasoline Engine) on page 482. {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 Highbeam On Light This light ﬂashes when the vehicle security system is activated. This light comes on when the high-beam headlamps are in use. Cruise Control Light This light comes on whenever you set your cruise control. The light will go out when the cruise control is turned off. See Cruise Control on page 217 for more information. See Headlamp High/Low-Beam Changer on page 215. Four-Wheel-Drive Light The four-wheel-drive light comes on when you shift a manual transfer case into four-wheel drive and the front axle engages. Some delay between the shifting and the light coming on is normal. See Four-Wheel Drive on page 153 for more information. 261 Tow/Haul Mode Light Fuel Gage This light comes on when the Tow/Haul

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2007 Chevrolet Silverado Owners Manual