Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the instrument panel to the left of the steering wheel.
There are four positions:
(Off): Turns off the automatic headlamps and Daytime Running Lamps (DRL). Turn the headlamp control to the off position again to turn the automatic headlamps or DRL back on.
For vehicles first sold in Canada, the off position will only work when the vehicle is shifted into P (Park).
AUTO : Automatically turns on the headlamps, parking lamps, taillamps, instrument panel lights, roof marker lamps (if equipped), and license plate lamps.
- Parking Lamps
- Instrument Panel Lights
- Taillamps
- License Plate Lamps
(Parking Lamps): Turns on the parking lamps including all lamps, except the headlamps.
- Instrument Panel Lights
- Taillamps
- License Plate Lamps
(Headlamps): Turns on the headlamps with the parking lamps and instrument panel lights.
- Parking Lamps
- Instrument Panel Lights
- Taillamps
- License Plate Lamps
When the headlamps are turned on while the vehicle is on, the headlamps will turn off automatically 10 minutes after the ignition is turned off. When the headlamps are turned on while the vehicle is off, the headlamps will stay on for 10 minutes before automatically turning off to prevent the battery from being drained. Turn the headlamp control to off and then back to the headlamp on position to make the headlamps stay on for an additional 10 minutes.
Exterior Lamps Off Reminder
A reminder chime will sound when the headlamps or parking lamps are manually turned on and the ignition is off and a door is open. To disable the chime, turn the light off.
Headlamp High/Low-Beam Changer
(Headlamp High/Low Beam Changer): To change the headlamps from low to high beam, push the turn signal lever toward the instrument panel. To return to low-beam headlamps, pull the lever toward you. Then release it.
When the high beams are on, this indicator light on the instrument cluster will also be on.
Flash-to-Pass
This feature lets you use the high-beam headlamps to signal a driver in front of you that you want to pass. It works even if the headlamps are in the automatic position.
To use it, pull the turn signal lever toward you, then release it.
If the headlamps are in the automatic position or on low beam, the 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 cluster will come on. Release the lever to return to normal operation.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. Fully functional daytime running lamps are required on all vehicles first sold in Canada.
The DRL system comes on when the following conditions are met:
- The ignition is on.
- The exterior lamp control is in AUTO.
- The transmission is not in P (Park).
- The light sensor determines it is daytime.
When the DRL system is on, only the DRL lamps are on. The taillamps, sidemarker, instrument panel lights, and other lamps will not be on.
When it begins to get dark, the automatic headlamp system switches from DRL to the headlamps.
To turn off the DRL lamps, turn the exterior lamp control to the OFF position and then release. For vehicles first sold in Canada, the transmission must be in the P (Park) position before the DRL lamps can be turned off.
Automatic Headlamp System
When it is dark enough outside, the automatic headlamp system turns on the headlamps at the normal brightness, along with the taillamp sidemarker, parking lamps, and the instrument panel lights. The radio lights will also be dim.
To turn off the automatic headlamp system, turn the exterior lamps switch to the off position and then release it. For vehicles first sold in Canada, the transmission must be in the P (Park) position before the automatic headlamp system can be turned off.
The vehicle has a light sensor located on the top of the instrument panel which regulates when the automatic headlamps turn on. Do not cover the sensor, otherwise the headlamps will come on whenever the ignition is on.
The system may also turn on the headlamps when driving through a parking garage or heavy overcast weather. 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 are only affected when the light sensor detects a change in lighting lasting longer than the delay.
If the vehicle is started in a dark garage, the automatic headlamp system comes on immediately. Once the vehicle leaves the garage, it takes approximately one minute for the automatic headlamp system to change to DRL if it is bright enough outside. During that delay, the instrument cluster may not be as bright as usual. Make sure the instrument panel brightness control is in the full bright position.
To idle the vehicle with the automatic headlamp system off, turn the control to the off position.
The headlamps will also stay on after you exit the vehicle. This feature can be programmed using the Driver Information Center (DIC).
If the vehicle is not equipped with DIC buttons, exit lighting is automatic. When it is dark enough outside, the exterior lamps remain on for 30 seconds after the ignition is moved from ON/RUN to LOCK/OFF.
For vehicles without a radio, the instrument panel light remains on for 30 seconds with the driver door closed. For vehicles with a radio, the instrument panel light remains on for 10 minutes with the drive door closed.
The regular headlamp system can be turned on when needed.
Lights On with Wipers
If the windshield wipers are activated in daylight with the engine on, and the exterior lamp control is in AUTO, the headlamps, parking lamps, and other exterior lamps come on. The transition time for the lamps coming on varies based on wiper speed. When the wipers are not operating, these lamps turn off. Move the exterior lamp control to 
or to disable this feature. are not operating.
Hazard Warning Flashers
(Hazard Warning Flashers): Press this button to make the front and rear turn signal lamps flash on and off. Press again to turn the flashers off.
When the hazard warning flashers are on, the vehicle's turn signals will not work.
Turn and Lane-Change Signals
Move the lever all the way up or down to signal a turn.
An arrow on the instrument cluster flashes in the direction of the turn or lane change.
Raise or lower the lever for less than one second until the arrow starts to flash to signal a lane change. This causes 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 returns to its starting position whenever it is released.
If after signaling a turn or a lane change the arrows flash rapidly or do not come on, a signal bulb could be burned out.
Replace any burned out bulbs. If a bulb is not burned out, check the fuse.
Turn Signal On Chime
If the turn signal is left on for more than 1.2 km (0.75 mi), 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.
Fog Lamps
For vehicles with fog lamps, the control is located next to the exterior lamp control on the instrument panel, to the left of the steering column.
The ignition must be in the ON/RUN position for the fog lamps to come on.
(Fog Lamps): Press to turn the fog lamps on or off. A light will come on in the instrument cluster.
When the fog lamps are turned on, the parking lamps automatically turn on.
When the headlamps are changed to high beam, the fog lamps also go off. When the high-beam headlamps are turned off, the fog lamps will come on again.
Some localities have laws that require the headlamps to be on with the fog lamps.
Auxiliary Roof-Mounted Lamp
If the 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 on the overhead console.
When the wiring is connected to an auxiliary roof-mounted lamp, pressing the bottom of the button will activate the lamp and illuminate an indicator light at the bottom of this button. Pressing the top of the button will turn off the roof-mounted lamp and indicator.
The emergency roof lamp circuit is fused at 30 amps, so the total current draw of the attached lamps should be less than this value. The attachment points for the roof lamp circuits are two blunt cut wires located above the overhead console, a dark green switched power wire and a black ground wire.
For more information on roof mount emergency lamp installation, please visit the GM Upfitter website at www.gmupfitter.com or contact your dealer
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