2015 Chevrolet Silverado Owners Manual

view to set the speed value. Press w or x to adjust the value. Press V to set the speed. Once the speed is set, this feature can be turned off

by pressing V while viewing this page. If the selected speed limit is exceeded, a pop-up warning is displayed with a chime. Software Information: Press p while Software Information is highlighted to display open source software information.

Speedometer The speedometer shows the vehicle's speed in either kilometers per hour (km/h) or miles per hour (mph).

Odometer The odometer shows how far the vehicle has been driven, in either kilometers or miles.

Trip Odometer The trip odometer shows how far the vehicle has been driven since the trip odometer was last reset. The trip odometer is accessed and reset through the Driver Information Center (DIC). See Driver Information Center (DIC) (Base Level) on page 5-30 or Driver Information Center (DIC) (Uplevel) on page 5-32.

Tachometer The tachometer displays the engine speed in revolutions per minute (rpm).

{ Caution

If the engine is operated with the rpm’s in the warning area at the high end of the tachometer, the vehicle could be damaged, and the damage would not be covered (Continued)

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Instruments and Controls

Caution (Continued)

by the vehicle warranty. Do not operate the engine with the rpm’s in the warning area.

Fuel Gauge

English

When the ignition is on, the fuel gauge indicates about how much fuel is left in the tank. There is an arrow near the fuel gauge pointing to the side of the vehicle the fuel door is on. When the indicator nears empty, the low fuel light comes on. There still is a little fuel left, but the vehicle should be refueled soon.

Metric

Here are four things that some owners ask about. None of these show a problem with the fuel gauge: . At the service station, the fuel

pump shuts off before the gauge reads full. It takes a little more or less fuel to fill up than the gauge indicated. For example, the gauge may have indicated the tank was half full, but it actually took a little more or less than half the tank's capacity to fill the tank. The gauge moves a little while turning a corner or speeding up. The gauge takes a few seconds to stabilize after the ignition is turned on, and goes back to empty when the ignition is turned off.

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Engine Oil Pressure Gauge

Metric

English

The engine oil pressure gauge shows the engine oil pressure in kPa (kilopascals) or psi (pounds per square inch) when the engine is running. Oil pressure can vary with engine speed, outside temperature and oil viscosity.

A reading outside the normal operating range can be caused by a dangerously low oil level or some other problem causing low oil pressure. Check the vehicle's oil as soon as possible. See “OIL PRESSURE LOW STOP ENGINE” under Engine Oil Messages on page 5-38 and Engine Oil on page 10-11.

low can also damage the

{ Caution Lack of proper engine oil maintenance can damage the engine. Driving with the engine oil engine. The repairs would not be covered by the vehicle warranty. Check the oil level as soon as possible. Add oil if required, but if the oil level is within the operating range and the oil pressure is still low, have the vehicle serviced. Always follow the maintenance schedule for changing engine oil.

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Instruments and Controls

If the vehicle has a diesel engine, see the Duramax diesel supplement.

Engine Coolant Temperature Gauge

Voltmeter Gauge

English

This gauge measures the temperature of the vehicle's engine coolant. While driving under normal operating conditions, if the needle moves into the red warning area, the engine is too hot. Pull off the road, stop the vehicle, and turn off the engine as soon as possible.

Metric

When the ignition is on, this gauge indicates the battery voltage. When the engine is running, this gauge shows the condition of the charging system. The gauge can transition from a higher to lower or a lower to higher reading. This is normal. If the vehicle is operating outside the normal operating range, the charging system light comes on. See Charging System Light on page 5-21 for more information.

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The voltmeter gauge may also read lower when in fuel economy mode. This is normal. Readings outside the normal operating range can also occur when a large number of electrical accessories are operating in the vehicle and the engine is left idling for an extended period. This condition is normal since the charging system is not able to provide full power at engine idle. As engine speeds are increased, this condition should correct itself as higher engine speeds allow the charging system to create maximum power. The vehicle can only be driven for a short time with the readings outside the normal operating range. If the vehicle must be driven, turn off all accessories, such as the radio and air conditioner.

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Readings outside the normal operating range indicate a possible problem in the electrical system. Have the vehicle serviced as soon as possible.

Safety Belt Reminders

Driver Safety Belt Reminder Light There is a driver safety belt reminder light on the instrument cluster.

times if the driver remains or becomes unbuckled while the vehicle is moving. If the driver safety belt is buckled, neither the light nor the chime comes on. Passenger Safety Belt Reminder Light There may be a passenger safety belt reminder light near the passenger airbag status indicator. See Passenger Sensing System on page 3-29.

When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their safety belt. Then the light stays on solid until the belt is buckled. This cycle may continue several

For vehicles equipped with the passenger safety belt reminder light, when the vehicle is started this light flashes and a chime may come on to remind passengers to fasten their safety belt. Then the light stays on solid until the belt is buckled. This

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cycle continues several times if the passenger remains or becomes unbuckled while the vehicle is moving. If the passenger safety belt is buckled, neither the chime nor the light comes on. The front passenger safety belt reminder light and chime may turn on if an object is put on the seat such as a briefcase, handbag, grocery bag, laptop, or other electronic device. To turn off the reminder light and/or chime, remove the object from the seat or buckle the safety belt.

Airbag Readiness Light This light shows if there is an electrical problem with the airbag system. The system check includes the airbag sensor(s), passenger sensing system (if equipped), 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 3-20.

The airbag readiness light comes on for several seconds when the vehicle is started. If the light does not come on then, have it fixed immediately.

{ Warning

If the airbag readiness light stays on after the vehicle is started or comes on while driving, it means the airbag system might not be working properly. The airbags in the vehicle might not inflate in a crash, or they could even inflate

(Continued)

Warning (Continued)

without a crash. To help avoid injury, have the vehicle serviced right away.

If there is a problem with the airbag system, a Driver Information Center (DIC) message may also come on. See Airbag System Messages on page 5-42.

Airbag On-Off Light If the vehicle has an airbag on-off switch, it also has a passenger airbag status indicator located in the overhead console.

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instrument panel endcap, the OFF indicator light or the off symbol will come on and stay on as a reminder that the airbag has been turned off. This light will go off when the airbag has been turned on. See Airbag On-Off Switch on page 3-27 for more information, including important safety information.

United States

Canada and Mexico

When the vehicle is started, the passenger airbag status indicator will light ON and OFF, or the symbol for on and off, will light for several seconds as a system check. Then, after several more seconds, the status indicator ON or OFF, or either the on or off symbol, will light to let you know the status of the front outboard passenger frontal airbag. When the front outboard passenger frontal airbag is manually turned off using the airbag on-off switch on the

{ Warning

If the front outboard passenger frontal airbag is turned off for a person who is not in a risk group identified by the national government, that person will not

(Continued)

Warning (Continued)

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 front outboard passenger frontal airbag unless the person sitting there is in a risk group identified by the national government. See Airbag On-Off Switch on page 3-27 for more information, including important safety information.

{ Warning

If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. For example, the front outboard

(Continued)

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Instruments and Controls

Passenger Airbag Status Indicator If the vehicle has one of the following indicators, then the vehicle has a passenger sensing system for the front outboard passenger position unless there is an airbag on-off switch on the instrument panel endcap. If there is an airbag on-off switch, the vehicle does not have a passenger sensing system. See Airbag On-Off Switch on page 3-27. The passenger airbag status indicator is on the overhead console. See Passenger Sensing System on page 3-29 for important safety information.

Warning (Continued)

passenger frontal airbag could inflate even though the airbag on-off switch is turned off. To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness Light on page 5-18 for more information, including important safety information.

If the word ON or the on symbol is lit, it means that the front outboard passenger frontal airbag is enabled (may inflate). See Airbag On-Off Switch on page 3-27 for more information, including important safety information. 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 airbag on-off switch. See your dealer for service.

United States

Canada and Mexico

When the vehicle is started, 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 will light either ON or OFF, or either the on or off symbol to let you know the status of the front outboard passenger frontal airbag.

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If the word ON or the on symbol is lit on the passenger airbag status indicator, it means that the front outboard passenger frontal airbag is enabled (may inflate). 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 front outboard passenger frontal airbag. 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 for service.

{ Warning

If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness

(Continued)

Warning (Continued)

Light on page 5-18 for more information, including important safety information.

Charging System Light

The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working. It should go out when the engine is started. If the light stays on, or comes on while driving, there may be a problem with the electrical charging system. Have it checked by your dealer. Driving while this light is on could drain the battery.

When this light comes on, or is flashing, the Driver Information Center (DIC) also displays a message. See Battery Voltage and Charging Messages on page 5-36. If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner.

Malfunction Indicator Lamp A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors the operation of the vehicle to ensure emissions are at acceptable levels, helping to maintain a clean environment. The malfunction indicator lamp comes on when the vehicle is placed in ON/RUN, as a check to show it is working. If it does not, have the vehicle serviced by your dealer. See Ignition Positions on page 9-24.

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Caution (Continued)

Caution (Continued)

the vehicle 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 the vehicle warranty.

{ Caution

Modifications made to the engine, transmission, exhaust, intake, or fuel system of the vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect the vehicle's emission controls and can cause this light to come on. Modifications to these systems could lead to costly repairs not covered by the vehicle warranty. This could also result in a failure

to pass a required Emission Inspection/Maintenance test. See Accessories and Modifications on page 10-3.

This light 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 the vehicle. Diagnosis and service might be required. To prevent more serious damage to the vehicle: . Reduce vehicle speed. . Avoid hard accelerations. . Avoid steep uphill grades.

If towing a trailer, reduce the amount of cargo being hauled as soon as it is possible.

If the malfunction indicator lamp comes on while the engine is running, this indicates that the OBD II system has detected a problem and diagnosis and service might be required. Malfunctions often are indicated by the system before any problem is apparent. Being aware of the light can prevent more serious damage to the vehicle. This system also assists the service technician in correctly diagnosing any malfunction.

{ Caution

If the vehicle is continually driven with this light on, the emission controls might not work as well,

(Continued)

(Continued)

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If the light continues to flash, find a safe place to stop and park the vehicle. Turn the vehicle off, wait at least 10 seconds, and restart the engine. If the light is still flashing, follow the previous steps and see your dealer for service as soon as possible. Light On Steady: An emission control system malfunction has been detected on the vehicle. Diagnosis and service might be required. The following may correct an emission control system malfunction: . Check that the fuel cap is fully

installed. See Filling the Tank on page 9-70. 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.

. Check that good quality fuel is used. Poor fuel quality causes the engine not to run as efficiently as designed and may cause stalling after start-up, stalling when the vehicle is changed into gear, misfiring, hesitation on acceleration, or stumbling on acceleration. These conditions might go away once the engine is warmed up. If one or more of these conditions occurs, change the fuel brand used. It may require at least one full tank of the proper fuel to turn the light off. See Fuel on page 9-67. If none of the above have made the light turn off, your dealer can check the vehicle. The dealer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that might have developed.

Emissions Inspection and Maintenance Programs Depending on where you live, your vehicle may be required to participate in an emission control system inspection and maintenance program. For the inspection, the emission system test equipment will likely connect to the vehicle's Data Link Connector (DLC).

The DLC is under the instrument panel to the left of the steering wheel. See your dealer if assistance is needed. The vehicle may not pass inspection if:

The malfunction indicator lamp is on with the engine running, or if the light does not come on when

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Instruments and Controls

the ignition is turned to ON/RUN while the engine is off. See your dealer for assistance in verifying proper operation of the malfunction indicator lamp. The OBD II (On-Board Diagnostics) system determines that critical emission control systems have not been completely diagnosed. The vehicle would be considered not ready for inspection. This can happen if the 12-volt battery has recently been replaced or run down. The diagnostic system is designed to evaluate critical emission control systems during normal driving. This can take several days of routine driving. If this has been done and the vehicle still does not pass the inspection for lack of OBD II system readiness, your dealer can prepare the vehicle for inspection.

Brake System Warning Light The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working. If the warning light comes on, there is a brake problem. Have the brake system inspected right away.

When the ignition is on, the brake system warning light also comes on when the parking brake is set. The light stays on if the parking brake does not fully release. If it stays on after the parking brake is fully released, it means the vehicle has a brake problem. If the light comes on while driving, pull off the road and stop carefully. The pedal might be harder to push, or the pedal can 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 the Vehicle on page 10-95.

{ Warning

Metric

English

This light should 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 if there is a problem.

The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off

(Continued)

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Warning (Continued)

the road and carefully stopped, have the vehicle towed for service.

Antilock Brake System (ABS) Warning Light

This light comes on briefly when the engine is started. If the light does not come on, have it fixed so it will be ready to warn if there is a problem.

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If the light comes on while driving, stop as soon as it is safely possible and turn off the vehicle. Then start the engine again to reset the system. If the ABS light stays on, or comes on again while driving, the vehicle needs service. A chime may also sound when the light comes on steady. If the ABS light is the only light on, the vehicle has regular brakes, but the antilock brakes are not functioning. If both the ABS and the brake system warning light are on, the vehicle's antilock brakes are not functioning and there is a problem with the regular brakes. See your dealer for service. See Brake System Warning Light on page 5-24 and Brake System Messages on page 5-36.

Four-Wheel-Drive Light

The four-wheel-drive light comes on when a vehicle with a manual transfer case is shifted 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 9-42
for more information.

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Instruments and Controls

Tow/Haul Mode Light

See Hill Descent Control (HDC) on page 9-56.

Lane Departure Warning (LDW) Light

Vehicle Ahead Indicator

If equipped, this indicator will display green when a vehicle is detected ahead and amber when you are following a vehicle ahead much too closely. See Forward Collision Alert (FCA) System on page 9-63.

For vehicles with the Tow/Haul Mode feature, this light comes on when the Tow/Haul Mode has been activated. See Tow/Haul Mode on page 9-39.

Hill Descent Control Light

If equipped, the Hill Descent Control light comes on when the system is ready for use. When the light flashes, the system is active.

If equipped, this light comes on briefly while starting the vehicle. If it does not come on, have the vehicle serviced. This light is green if LDW is on and ready to operate. This light changes to amber and flashes to indicate that the lane marking has been crossed without using a turn signal in that direction. See Lane Departure Warning (LDW) on page 9-66.

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Traction Off Light

StabiliTrak® OFF Light

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Traction Control System (TCS)/StabiliTrak® Light

This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light then turns off. The traction off light comes on when the Traction Control System (TCS) has been turned off by pressing and releasing the TCS/StabiliTrak button. This light and the StabiliTrak OFF light come on when StabiliTrak is turned off. If the TCS is off, wheel spin is not limited. Adjust driving accordingly. See Traction Control/Electronic Stability Control on page 9-54.

This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. This light comes on when the StabiliTrak system is turned off. If StabiliTrak is off, the Traction Control System (TCS) is also off. If the StabiliTrak and TCS are off, the system does not assist in controlling the vehicle. Turn on the TCS and the StabiliTrak systems and the warning light turns off. See Traction Control/Electronic Stability Control on page 9-54.

This light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light is on and not flashing, the TCS and potentially the StabiliTrak system have been disabled. A DIC message may display. Check the DIC messages to determine which feature(s) is no longer functioning and whether the vehicle requires service.

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Instruments and Controls

If the indicator/warning light is on and flashing, the TCS and/or the StabiliTrak system is actively working. See Traction Control/Electronic Stability Control on page 9-54.

Tire Pressure Light

For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.

When the Light Is On Steady This indicates that one or more of the tires are significantly underinflated. A Driver Information Center (DIC) tire pressure message may also display. See Tire Messages on page 5-43. Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. See Tire Pressure on page 10-62.

When the Light Flashes First and Then Is On Steady If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on at every ignition cycle. See Tire Pressure Monitor Operation on page 10-65.

Low Fuel Warning Light

This light is near the fuel gauge and comes on briefly when the ignition is turned on as a check to show it is working. It also comes on when the fuel tank is low on fuel. The light turns off when fuel is added. If it does not, have the vehicle serviced.

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Security Light

High-Beam On Light

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The light goes out when the fog lamps are turned off. See Fog Lamps on page 6-5 for more information.

Lamps On Reminder

The security light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation on page 2-13.

This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer on page 6-2.

Front Fog Lamp Light

For vehicles with fog lamps, this light comes on when the fog lamps are on.

This light comes on when the exterior lamps are in use. See Exterior Lamp Controls on page 6-1.

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Instruments and Controls

Cruise Control Light

Information Displays

For vehicles with cruise control, the cruise control light is white when the cruise control is on and ready, and turns green when the cruise control is set and active. The light turns off when the cruise control is turned off. See Cruise Control on page 9-57.

Driver Information Center (DIC) (Base Level) The DIC displays are shown in the center of the instrument cluster. The displays show the status of many vehicle systems. The trip odometer reset stem in the instrument cluster is used to access the DIC menu items. DIC Menu Items Turn the trip odometer reset stem to scroll through the following menu items: . Digital Speedometer

Trip Fuel Range

. Average Fuel Economy

Tire Pressure

. Remaining Oil Life

Transmission Fluid Temperature Trailer Brake

. Hourmeter . Unit

Digital Speedometer The speedometer shows how fast the vehicle is moving in either kilometers per hour (km/h) or miles per hour (mph). The speedometer cannot be reset.

Trip Turn the trip odometer reset stem until TRIP displays. The current distance traveled, in either kilometers (km) or miles (mi), since the last reset for the trip odometer is shown. The trip odometer can be reset to zero by pressing and holding the trip odometer reset stem while the trip odometer is displayed.

Fuel Range This display shows the approximate distance the vehicle can be driven without refueling. The fuel range estimate is based on an average of the vehicle's fuel economy over

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recent driving history and the amount of fuel remaining in the fuel tank. Fuel range cannot be reset.

See Tire Pressure Monitor System on page 10-64 and Tire Pressure Monitor Operation on page 10-65.

Average Fuel Economy The Average Fuel Economy display shows the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number reflects only the approximate average fuel economy that the vehicle has right now, and will change as driving conditions change. This number is based on the number of L/100 km (mpg) recorded since the last time this menu item was reset. Reset this display by pressing the trip odometer reset stem.

Tire Pressure Turn the trip odometer reset stem until a vehicle with the approximate pressures of all four tires displays. Tire pressure is displayed in either kilopascal (kPa) or in pounds per square inch (psi).

Remaining Oil Life Turn the trip odometer reset stem until REMAINING OIL LIFE displays. An estimate of the oil's remaining useful life is shown. REMAINING OIL LIFE 99% means 99% of the current oil life remains. When the remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. See Engine Oil Messages on page 5-38. The oil should be changed as soon as possible. See Engine Oil on page 10-11. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule. See Maintenance Schedule on page 11-3.

The Oil Life display must be reset after each oil change. It will not reset itself. Do not reset the Oil Life display at any time other than when the oil has just been changed. It cannot be reset accurately until the next oil change. To reset the engine oil life system, see Engine Oil Life System on page 10-14.

Transmission Fluid Temperature The temperature of the automatic transmission fluid displays in either degrees Celsius (°C) or degrees Fahrenheit (°F).

Trailer Brake On vehicles with the Integrated Trailer Brake Control (ITBC) system, turn the trip odometer reset stem until TRAILER GAIN and TRAILER OUTPUT displays. TRAILER GAIN shows the Trailer Gain setting. This setting can be adjusted from 0.0 to 10.0 with either a trailer connected or disconnected.

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Instruments and Controls

Compass The vehicle may have a compass in the Driver Information Center (DIC). See Compass on page 5-5.

Driver Information Center (DIC) (Uplevel) The DIC displays are shown in the center of the instrument cluster in the Info app. See Instrument Cluster on page 5-10. The displays show the status of many vehicle systems. The controls for the DIC are on the right steering wheel control.

TRAILER OUTPUT shows the power output to the trailer anytime a trailer with electric brakes is connected. Output is displayed as a bar graph. Dashes may appear in the TRAILER OUTPUT display if a trailer is not connected.

Hourmeter This display shows the total number of hours the engine has run.

Unit This will change the displays on the instrument cluster and DIC to either metric or English (US) measurements. To change the units, press the trip odometer reset stem when UNITS is displayed to enter the Unit menu. Turn the trip odometer reset stem to switch between English and metric. Press the trip odometer reset stem when the desired setting is displayed.

w or x : Press to move up or down in a list. In the main view, you can press up and down to move between different info app pages. o or p : Press to move between the interactive display zones in the cluster. V (Set/Reset): Press to open a menu or select a menu item. Press and hold to reset values on certain screens.

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DIC Info Page Options The info pages on the DIC can be turned on or off through the Settings menu. 1. Press o to access the cluster

applications.

2. Press w or x to scroll to the

Settings application.

3. Press V to enter the

Settings menu.

4. Scroll to Info Pages and

press p.

5. Press w or x to move through

the list of possible information displays.

6. Press V while an item is

highlighted to select or deselect that item. When an item is selected, a checkmark will appear next to it.

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DIC Info Pages The following is the list of all possible DIC info page displays. Some may not be available for your particular vehicle. Some items may not be turned on by default but can be turned on through the Settings app. See “DIC Info Page Options” earlier in this section. Speed: Shows the vehicle speed in either kilometers per hour (km/h) or miles per hour (mph). Trip A or Trip B: Shows the current distance traveled, in either kilometers (km) or miles (mi), since the trip odometer was last reset. This also shows the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated based on the number of L/100 km (mpg) recorded since the last time this menu item was reset. This number reflects only the approximate average fuel economy

that the vehicle has right now, and will change as driving conditions change.

Press and hold V while this display is active to reset the trip odometer and the average fuel economy. Trip A and Trip B can also be reset by pressing p and choosing reset. Fuel Range: Shows the approximate distance the vehicle can be driven without refueling. LOW will be displayed when the vehicle is low on fuel. The fuel range estimate is based on an average of the vehicle's fuel economy over recent driving history and the amount of fuel remaining in the fuel tank. Oil Life: Shows an estimate of the oil's remaining useful life. If REMAINING OIL LIFE 99% is displayed, that means 99% of the current oil life remains.

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Instruments and Controls

When the remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. See Engine Oil Messages on page 5-38. The oil should be changed as soon as possible. See Engine Oil on page 10-11. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule. See Maintenance Schedule on page 11-3. The Oil Life display must be reset after each oil change. It will not reset itself. Do not to reset the Oil Life display at any time other than when the oil has just been changed. It cannot be reset accurately until the next oil change. To reset the engine oil life system, press and hold V for several seconds while the Oil Life display is active. See Engine Oil Life System on page 10-14.

Tire Pressure: Shows the approximate pressures of all four tires. Tire pressure is displayed in either kilopascal (kPa) or in pounds per square inch (psi). If the pressure is low, the value for that tire is shown in amber. See Tire Pressure Monitor System on page 10-64 and Tire Pressure Monitor Operation on page 10-65. Fuel Economy: The center displays the approximate instantaneous fuel economy as a number and bar graph. Displayed above the bar graph is a running average of fuel economy for the most recently traveled selected distance. Displayed below the bar graph is the best average fuel economy that has been achieved for the selected distance. The selected distance is displayed at the top of the page as “last xxx mi/km.” Next to the odometer, the Active Fuel Management displays the number of cylinders the vehicle is running on. See Active Fuel Management® on page 9-33.

Press p to select the distance or reset best value. Use w and x to choose the distance and press V. Press w and x to select “Reset Best Score.” Press V to reset the best average fuel economy. After reset, the best value displays “-,-” until the selected distance has been traveled. The display provides information on how current driving behavior affects the running average and how well recent driving compares to the best that has been achieved for the selected distance. Timer: This display can be used as a timer. To start the timer, press V while this display is active. The display will show the amount of time that has passed since the timer was last reset. To stop the timer, press V briefly while this display is active and the timer is running.

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To reset the timer to zero, press and hold V while this display is active, or press p and select reset. Speed Limit (If Equipped): Shows sign information, which comes from a roadway database in the onboard navigation. Engine Hours: Shows the total number of hours the engine has run. Transmission Fluid Temperature: Shows the temperature of the automatic transmission fluid in either degrees Celsius (°C) or degrees Fahrenheit (°F). Trailer Brake (If Equipped): On vehicles with the Integrated Trailer Brake Control (ITBC) system, the trailer brake display appears in the DIC.

TRAILER GAIN shows the trailer gain setting. This setting can be adjusted from 0.0 to 10.0 with either a trailer connected or disconnected. OUTPUT shows the power output to the trailer anytime a trailer with electric brakes is connected. Output is displayed as a bar graph. Dashes may appear in the OUTPUT display if a trailer is not connected. Off Road: Displays vehicle pitch and roll information, road wheel angle, and four-wheel drive (4WD) status. Blank Page: Shows no information.

Vehicle Messages Messages displayed on the DIC indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing V or the trip odometer reset stem on the base cluster. The messages that require immediate action cannot be cleared until that action is performed. All messages should be taken seriously and clearing the message does not correct the problem. The following are the possible messages and some information about them. If the vehicle has a diesel engine, see the Duramax diesel supplement.

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Instruments and Controls

Battery Voltage and Charging Messages

BATTERY LOW START VEHICLE When the vehicle’s battery is severely discharged, this message will display and four chimes will sound. Start the vehicle immediately. If the vehicle is not started and the battery continues to discharge, the climate controls, heated seats, and audio systems will shut off and the vehicle may require a jump start. These systems will function again after the vehicle is started. BATTERY SAVER ACTIVE This message displays when the battery voltage drops below expected levels and features are disabled. Turn off all unnecessary accessory features.

SERVICE BATTERY CHARGING SYSTEM On some vehicles, this message displays if there is a problem with the battery charging system. Under certain conditions, the charging system light may also turn on in the instrument cluster. See Charging System Light on page 5-21. Driving with this problem could drain the battery. Turn off all unnecessary accessories. Have the electrical system checked as soon as possible. See your dealer. TRANSPORT MODE ON This message is displayed when the vehicle is in transport mode. Some features can be disabled while in this mode, including Remote Keyless Entry (RKE), remote start, and the vehicle alarm system. Take the vehicle to your dealer for service to turn transport mode off.

Brake System Messages

BRAKE FLUID LOW This message is displayed when the brake fluid level is low. See Brake Fluid on page 10-31. SERVICE BRAKE ASSIST This message may be displayed when there is a problem with the brake boost assist system. When this message is displayed, the brake boost assist motor might be heard operating and you might notice pulsation in the brake pedal. This is normal under these conditions. Take the vehicle to your dealer for service. SERVICE TRAILER BRAKE SYSTEM On vehicles with the Integrated Trailer Brake Control (ITBC) system, this message displays and a chime may sound when there is a problem with the ITBC system.

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When this message displays, power is no longer available to the trailer brakes. As soon as it is safe to do so, carefully pull your vehicle over to the side of the road and turn the ignition off. Check the wiring connection to the trailer and turn the ignition back on. If this message still displays, either your vehicle or the trailer needs service. See your dealer. See “Integrated Trailer Brake Control System” under Towing Equipment on page 9-90 for more information.

Compass Messages Dashes may be displayed if the vehicle temporarily loses communication with the Global Positioning System (GPS).

Instruments and Controls

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Door Ajar Messages

DOOR OPEN This message displays and a chime may sound if a door is not fully closed. Stop and turn off the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC. HOOD OPEN This message displays and a chime may sound if the hood is not fully closed. Stop and turn off the vehicle, check the hood for obstructions, and close the hood again. Check to see if the message still appears on the DIC.

Engine Cooling System Messages

A/C OFF DUE TO HIGH ENGINE TEMP This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gauge on page 5-16. To avoid added strain on a hot engine, the air conditioning compressor automatically turns 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 as soon as possible to avoid damage to the engine.

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Instruments and Controls

ENGINE OVERHEATING IDLE ENGINE 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 Gauge on page 5-16. When towing, use Tow/Haul mode to prevent damage to the engine or transmission. See Tow/Haul Mode on page 9-39. ENGINE OVERHEATED STOP ENGINE This message displays and a chime may sound if the engine cooling system reaches unsafe temperatures for operation. Stop and turn off the vehicle as soon as it is safe to do so to avoid severe damage. This message clears when the engine has cooled to a safe operating temperature.

Engine Oil Messages

CHANGE ENGINE OIL SOON This message displays when the engine oil needs to be changed. When you change the engine oil, be sure to reset the CHANGE ENGINE OIL SOON message. See Engine Oil Life System on page 10-14 for information on how to reset the message. See Engine Oil on page 10-11 and Maintenance Schedule on page 11-3. ENGINE OIL LOW ADD OIL On some vehicles, this message displays when the engine oil level may be too low. Check the oil level before filling to the recommended level. If the oil is not low and this message remains on, take the vehicle to your dealer for service. See Engine Oil on page 10-11.

ENGINE OIL HOT IDLE ENGINE This message displays when the engine oil becomes hotter than the normal operating temperature. Stop and allow the vehicle to idle until it cools down. See Engine Coolant Temperature Gauge on page 5-16. OIL PRESSURE LOW STOP ENGINE This message displays if low oil pressure levels occur. Stop the vehicle as soon as safely possible and do not operate it until the cause of the low oil pressure has been corrected. Check the oil as soon as possible and have the vehicle serviced by your dealer. See Engine Oil on page 10-11.

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Engine Power Messages

Fuel System Messages

Key and Lock Messages

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ENGINE POWER IS REDUCED This message displays and a chime may sound when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overheating on page 10-25
for more information. This message also displays when the vehicle's engine power is reduced. 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, the vehicle should be taken to your dealer for service as soon as possible.

FUEL LEVEL LOW This message displays and a chime may sound if the fuel level is low. Refuel as soon as possible. See Fuel Gauge on page 5-14 and Fuel on page 9-67. TIGHTEN GAS CAP This message may display along with the malfunction indicator lamp on the instrument cluster if the vehicle's fuel cap is not tightened properly. See Malfunction Indicator Lamp on page 5-21. Reinstall the fuel cap fully. See Filling the Tank on page 9-70. 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 this light and message off.

REPLACE BATTERY IN REMOTE KEY This message displays if a Remote Keyless Entry (RKE) transmitter battery is low. The battery needs to be replaced in the transmitter. See “Battery Replacement” under Remote Keyless Entry (RKE) System Operation on page 2-4.

Lamp Messages

TURN SIGNAL ON This message displays and a chime sounds if a turn signal is left on for 1.2 km (0.75 mi). Move the turn signal lever to the off position.

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Instruments and Controls

Object Detection System Messages

FORWARD COLLISION ALERT OFF This message displays when the Forward Collision Alert has been turned off. FRONT CAMERA BLOCKED CLEAN WINDSHIELD This message displays when the camera is blocked. Cleaning the outside of the windshield behind the rearview mirror may correct the issue. The Lane Departure Warning (LDW) system and Forward Collision Alert (FCA) will not operate. LANE DEPARTURE WARNING UNAVAILABLE This message displays when attempting to activate the Lane Departure Warning (LDW) system

when it is temporarily unavailable. The LDW system does not need service. This message could be due to the camera being blocked. Cleaning the outside of the windshield behind the rearview mirror may correct the issue. PARK ASSIST OFF This message displays when the Parking Assist system has been turned off or when there is a temporary condition causing the system to be disabled. SERVICE FRONT CAMERA If this message remains on after continued driving, the vehicle needs service. Do not use the Lane Departure Warning (LDW) and Forward Collision Alert (FCA) features. Take the vehicle to your dealer.

SERVICE PARKING ASSIST This message displays if there is a problem with the Parking Assist system. Do not use this system to help you park. See your dealer for service.

Ride Control System Messages

SERVICE STABILITRAK If this message displays, it means there may be a problem with the StabiliTrak system. If you see this message, try to reset the system. Stop; turn off the engine for at least 15 seconds; then start the engine again. If this message still comes on, it means there is a problem. You should see your dealer for service. The vehicle is safe to drive; however, you do not have the benefit of StabiliTrak, so reduce your speed and drive accordingly.

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SERVICE TRACTION CONTROL This message displays when there is a problem with the Traction Control System (TCS). When this message displays, the system will not limit wheel spin. Adjust your driving accordingly. See your dealer for service. See Traction Control/ Electronic Stability Control on page 9-54. STABILITRAK INITIALIZING This message may come on if the StabiliTrak system has not fully initialized because of road conditions or the incorrect tire size. When the StabiliTrak system is fully initialized, the message will turn off. See Traction Control/Electronic Stability Control on page 9-54. If this message continues to be displayed for multiple ignition cycles and on different road surfaces, see your dealer for service.

TRACTION CONTROL OFF This message displays when the traction control has been turned off. See Traction Control/Electronic Stability Control on page 9-54. TRACTION CONTROL ON This message displays when the traction control is active. See Traction Control/Electronic Stability Control on page 9-54. STABILITRAK OFF This message displays when the StabiliTrak system has been turned off. Adjust your driving accordingly. To limit wheel spin and realize the full benefits of the stability enhancement system, you should normally leave StabiliTrak on. See Traction Control/Electronic Stability Control on page 9-54.

STABILITRAK OFF may also display when the stability control has been automatically disabled. The following conditions can cause this message to appear:

The system is overheating, which could occur if StabiliTrak activates continuously for an extended period of time. The brake system warning light is on. See Brake System Warning Light on page 5-24. The stability system takes longer than usual to complete its diagnostic checks due to driving conditions.

. An engine or vehicle-related

problem has been detected and the vehicle needs service. See your dealer. The transfer case is in Four-Wheel Drive Low.

The message turns off as soon as the conditions that caused the message to be displayed are no longer present.

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Instruments and Controls

Airbag System Messages

SERVICE AIRBAG This message displays if there is a problem with the airbag system. Take the vehicle to your dealer for service.

Safety Belt Messages

SHIFTER LOCKED. BUCKLE SEATBELT This message displays if the vehicle is equipped with the Safety Belt Assurance System and the driver and front outboard passenger, if present, safety belts are not buckled. The vehicle will not shift out of P (Park). Buckle the safety belt(s) to unlock the shift lever. This system may not allow the vehicle to shift out of P (Park) if an object - such as a briefcase, handbag, grocery bag, laptop, or other electronic device - is on the front outboard passenger seat.

If this happens, remove the object from the seat or buckle the safety belt. If the driver or front outboard passenger unbuckles their safety belt while driving, the safety belt reminder chime and light(s) will come on. See Safety Belt Reminders on page 5-17. SHIFTER UNLOCKED. BRAKE TO SHIFT This message displays when the Safety Belt Assurance System times out and allows the vehicle to be shifted out of P (Park) after 30 seconds following brake apply. See “Safety Belts” and “Child Restraints” in the Index for information about the importance of proper restraint use. This system may not function properly if the airbag readiness light is on. See Airbag Readiness Light on page 5-18.

Security Messages

SERVICE THEFT DETERRENT SYSTEM This message displays when there is a problem with the theft-deterrent system. The vehicle may or may not restart, so you may want to take the vehicle to your dealer before turning off the engine. See Immobilizer Operation on page 2-13.

Steering System Messages

STEERING ASSIST IS REDUCED DRIVE WITH CARE This message may display if a problem occurs with the electric power steering system. If this message appears, steering effort may be slightly higher than normal. The vehicle is still safe to drive. Use caution while in reduced assist mode. If this message is persistent

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If the warning comes on and stays on, there may be a problem with the TPMS. See your dealer. TIRE LEARNING ACTIVE If equipped with the Tire Pressure Monitor System (TPMS), this message displays when the system is relearning the tire positions on your vehicle. The tire positions must be relearned after rotating the tires or after replacing a tire or sensor. See Tire Inspection on page 10-69, Tire Rotation on page 10-69, Tire Pressure Monitor System on page 10-64, and Tire Pressure on page 10-62.

or appears repeatedly, take the vehicle to your dealer for service. See Steering on page 9-4. SERVICE POWER STEERING This message displays when there is a problem with electric power steering. Take the vehicle to your dealer for service. See Steering on page 9-4.

Tire Messages

SERVICE TIRE MONITOR SYSTEM If equipped with the Tire Pressure Monitor System (TPMS), this message displays if a part on the system is not working properly. The tire pressure light also flashes and then remains on during the same ignition cycle. See Tire Pressure Light on page 5-28. Several conditions may cause this message to appear. See Tire Pressure Monitor Operation on page 10-65.

TIRE PRESSURE LOW ADD AIR TO TIRE If equipped with the Tire Pressure Monitor System (TPMS), this message displays when the pressure in one or more of the vehicle's tires is low. This message also displays with a vehicle picture to indicate the location of the low tire. The low tire pressure warning light will also come on. See Tire Pressure Light on page 5-28. You can receive more than one tire pressure message at a time. 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 and Loading Information label. See Tires on page 10-53, Vehicle Load Limits on page 9-15, and Tire Pressure on page 10-62. The DIC also shows the tire pressure values. See Driver Information Center (DIC) (Base Level) on page 5-30 or Driver Information Center (DIC) (Uplevel) on page 5-32.

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Instruments and Controls

Transmission Messages

4WD OFF If equipped with four-wheel drive, this message displays when the four-wheel-drive system is temporarily disabled due to an overheated condition. The vehicle will run in two-wheel drive when this message is present. Once the four-wheel-drive system cools down, the message turns off and the four-wheel-drive system returns to normal operation. 4WD SHIFT IN PROGRESS This message will display while the four-wheel-drive system is shifting. FOR 4WD LOW SHIFT TO NEUTRAL If a four-wheel drive shift into 4 n is requested, and the vehicle speed is correct, but the transmission is not in N (Neutral), this message will display until the transmission is shifted to N (Neutral).

FOR 4WD LOW SLOW TO XXX If a four-wheel drive shift into 4 n is requested, but the vehicle speed is too high, this message will display until the correct vehicle speed is reached. GRADE BRAKING ACTIVE This message displays when grade braking has been activated while driving on downhill grades. This message will only appear the first time the feature is activated in an ignition cycle. See Tow/Haul Mode on page 9-39, Automatic Transmission on page 9-34, and Cruise Control on page 9-57. GRADE BRAKING OFF This message displays when grade braking has been disabled with the Tow/Haul Mode button on the end of the shift lever. See Tow/Haul Mode on page 9-39, Automatic Transmission on page 9-34, and Cruise Control on page 9-57.

GRADE BRAKING ON This message displays when grade braking has been enabled with the Tow/Haul Mode button on the end of the shift lever. See Tow/Haul Mode on page 9-39, Automatic Transmission on page 9-34, and Cruise Control on page 9-57. SERVICE 4WD If the vehicle has four-wheel drive, this message may display if a problem occurs with the four-wheel-drive system. If this message appears, stop as soon as possible and turn off the vehicle. Make sure the key is in the LOCK/ OFF position for at least one minute, then restart the vehicle and check for the message on the DIC display. If the message is still displayed or appears again when you begin driving, the four-wheel-drive system needs service. See your dealer.

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SHIFT DENIED This message displays when the shift lever is in M (Manual Mode) and a transmission range has been selected that is unavailable at the current vehicle speed. TO EXIT 4WD LOW SHIFT TO NEUTRAL If a four-wheel drive shift out of 4 n is requested, and the vehicle speed is correct, but the transmission is not in N (Neutral), this message will display until the transmission is shifted to N (Neutral). TO EXIT 4WD LOW SLOW TO XXX If a four-wheel drive shift out of 4 n is requested, but the vehicle speed is too high, this message will display until the correct vehicle speed is reached.

TRANSMISSION HOT IDLE ENGINE This message displays and a chime may sound if the transmission fluid in the vehicle gets hot. Driving with the transmission fluid temperature high can cause damage to the vehicle. Stop the vehicle and let it idle to allow the transmission to cool. This message clears and the chime stops when the fluid temperature reaches a safe level. When towing, use Tow/Haul Mode to prevent damage to the engine or transmission. See Tow/Haul Mode on page 9-39. VEHICLE IN 4WD LOW This message will display if the vehicle is driven in 4 n for about 10 minutes above 72 km/h (45 mph).

Vehicle Reminder Messages

CHECK TRAILER WIRING On vehicles with the Integrated Trailer Brake Control (ITBC) system, this message may display and a chime may sound when one of the following conditions exists: . A trailer with electric brakes

becomes disconnected from the vehicle. ‐ If the disconnect occurs while

the vehicle is stopped, this message clears itself after a short time.

‐ If the disconnect occurs while

the vehicle is moving, this message stays on until the ignition is turned off.

There is a short in the wiring to the electric trailer brakes.

When this message displays, power is no longer available to the trailer brakes.

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Washer Fluid Messages

WASHER FLUID LOW ADD FLUID This message displays when the windshield washer fluid is low. Fill the windshield washer fluid reservoir as soon as possible. See Engine Compartment Overview on page 10-6 for the location of the windshield washer fluid reservoir. Also, see Washer Fluid on page 10-29 for more information.

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As soon as it is safe to do so, carefully pull the vehicle over to the side of the road and turn the ignition off. Check the wiring connection to the trailer and turn the ignition back on. This message clears if the trailer is reconnected. This message also clears if you acknowledge it. If this message still displays, either the vehicle or the trailer needs service. See your dealer. See “Integrated Trailer Brake Control System” under Towing Equipment on page 9-90. ICE POSSIBLE DRIVE WITH CARE This message displays when ice conditions are possible. TRAILER CONNECTED On vehicles with the Integrated Trailer Brake Control (ITBC) system, this message displays briefly when a trailer with electric or electric over hydraulic brakes is first connected to the vehicle.

This message clears itself after several seconds. This message also clears if you acknowledge it. After this message clears, the TRAILER GAIN and OUTPUT displays appear in the DIC.