Turns off the automatic headlamps and Daytime Running Lamps (DRL). Turn the headlamp control to again to turn the automatic headlamps or DRL back on. For vehicles first sold in Canada, off will only work when the vehicle is in P (Park).
AUTO: Automatically turns on the headlamps, parking lamps, taillamps, instrument panel lights, roof marker lamps (if equipped), front/rear side marker lamps, and license plate lamps.
Turns on the parking lamps including all lamps, except the headlamps and fog lamps, if equipped.
For some trim levels and series of trucks first sold in Canada, the headlamps may turn on with the parking lamps.
Turns on the headlamps together with the parking lamps, taillamps, instrument panel lights, roof marker lamps (if equipped), front/rear side marker lamps, and license plate lamps.
When the headlamps are turned on while the vehicle is on, the headlamps 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 turning off to prevent the battery from being drained. Turn the headlamp control off and then back to the headlamp on position to make the headlamps stay on for an additional 10 minutes. To keep the lamps on for more than 10 minutes, the ignition must be on or in ACC/ACCESSORY.
If equipped, turns on the fog lamps. See Fog Lamps 144.

IntelliBeam System

If equipped, this system turns the vehicle’s high-beam headlamps on and off according to surrounding traffic conditions.
The system turns the high-beam headlamps on when it is dark enough and there is no other traffic present.
This light comes on in the instrument cluster when the IntelliBeam system is enabled.

Turning On and Enabling IntelliBeam

To enable the IntelliBeam system, press on the turn signal lever when it is dark outside and the exterior lamp control is in AUTO or .

Driving with IntelliBeam

The system only activates the high beams when driving over 40 km/h (25 mph). The blue high-beam light appears on the instrument cluster when the high beams are on. There is a sensor near the top center of the windshield that automatically controls the system. Keep this area of the windshield clear of debris to allow for the best system performance. The high-beam headlamps remain on, under the automatic control, until one of the following situations occurs:

The system detects an approaching vehicle’s headlamps.
The system detects a preceding vehicle’s taillamps.
The outside light is bright enough that high-beam headlamps are not required.
The vehicle’s speed drops below 20 km/h (12 mph).
The IntelliBeam system is disabled by the button on the turn signal lever. If this happens, press on the turn signal lever when the exterior lamp control is in the AUTO or position to reactivate the IntelliBeam system. The instrument cluster light will come on to indicate the IntelliBeam system is reactivated.

The high beams may not turn off automatically if the system cannot detect another vehicle’s lamps because of any of the following:

The other vehicle’s lamps are missing, damaged, obstructed from view, or otherwise undetected.
The other vehicle’s lamps are covered with dirt, snow, and/or road spray.
The other vehicle’s lamps cannot be detected due to dense exhaust, smoke, fog, snow, road spray, mist, or other airborne obstructions.
The vehicle’s windshield is dirty, cracked, or obstructed by something that blocks the view of the light sensor.
The vehicle is loaded such that the front end points upward, causing the light sensor to aim high and not detect headlamps and taillamps.
Driving on winding or hilly roads.
- The automatic high-beam headlamps may need to be disabled if any of the above conditions exist

Exterior Lamps Off Reminder

A reminder chime sounds when the headlamps or parking lamps are manually turned on, the vehicle is turned off, and a door is open. To disable the chime, turn the lamps off.

Headlamp High/Low-Beam

Changer

Push the turn signal lever toward the instrument panel to change the headlamps from low to high beams. Pull or push the turn signal lever to return to low-beam headlamps.

When the high-beam headlamps 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 a low beam, the high-beam headlamps will turn on. Depending on the type of headlamp, they will either turn off after a short duration or 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)

DRL can make it easier for others to see the front of the vehicle during the day. Fully functional DRL are required on all vehicles first sold in Canada.
The DRL system comes on when the following conditions are met
- The vehicle 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 is on. The taillamps, side marker lamps, instrument panel lights, and other lamps will not turn on.
When it begins to get dark, the automatic headlamp system switches from DRL to the headlamps.

To turn off the DRL, turn the exterior lamp control to and then release. For vehicles first sold in Canada, turning off the DRL will only work when the vehicle is parked

Automatic Headlamp System

When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically There is a light sensor on top of the instrument panel. Do not cover the sensor, otherwise the headlamps will come on when they are not needed.
The system may also turn on the headlamps when driving through a parking garage or tunnel.
If the vehicle is started in a dark garage, the automatic headlamp system comes on immediately. If it is light outside when the vehicle leaves the garage, there is a slight delay before the automatic headlamp system changes to the Daytime Running Lamps (DRL). During that delay, the instrument cluster may not be as bright as usual. Make sure the instrument panel illumination control is in the full bright position. See Instrument Panel Illumination Control 146.
When it is bright enough outside, the headlamps will turn off or may change to DRL.
The automatic headlamp system turns off when the exterior lamp control is turned to O or the ignition is off.

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 O or disable this feature.

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

An arrow on the instrument cluster flashes in the direction of the turn or lane change.
Move the turn signal lever all the way up or down to signal a turn.
Partially 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 the lever is released.
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. If equipped with LED turn signals, see your dealer.
Replace any burned-out bulbs. If a bulb is not burned out, check the fuse. See Fuses and Circuit Breakers 0 367.

Turn Signal On Chime

If the turn signal is left on for more than 1.2 km (0.75 mi), a chime sounds at each flash of the turn signal. A message may appear in the Driver Information Center (DIC). See Vehicle Messages 0 131. To turn the chime and message off, move the turn signal lever to the off position

Fog Lamps

If equipped, the fog lamp control is near the exterior lamp control to the left of the steering column. The vehicle must be on for the fog lamps to come on

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

Task Lighting

If equipped, task lighting projects light from the outside mirrors away from the vehicle. While the vehicle is parked, press to select one of the following options

Left and Right Task Lights Illuminated
Left Task Light Illuminated
Right Task Light Illuminated
Left and Right Task Lights Off

If the vehicle leaves a parked position, the lights will immediately turn off. If the vehicle is off, the lights will stay on for approximately 10 minutes. If any Task lights are on, if the button has not been pressed after approximately 5 seconds, pressing it again will turn off all Task Lights.

Auxiliary Roof-Mounted Lamp

If equipped, this button includes wiring provisions for a dealer or a qualified service center to install an auxiliary roof lamp.

For information on roof-mounted emergency lamp installation, see www.gmupfitter.com or contact your dealer. If the vehicle has this button, the vehicle may have the snow plow prep package. See Add-On Electrical Equipment 334.

Exterior Cargo Lamps

The cargo lamps provide more light in the cargo area or on the sides of the vehicle if needed. The lamps inside the pickup box, in the tailgate handle, for the hitch, and/or the cargo mirror lamps also turn on, if equipped. If the vehicle is in P (Park), R (Reverse), or N (Neutral) the cargo lamp switch causes the lights to cycle through the following states for each button press

Initial Press
1. Center High-Mounted Stoplamp (CHMSL)/
2. Cargo Bed Lights – On
3. Cargo Mirror Lights – On
4. Cargo Switch Indicator (if equipped) – On
Next Press (if within five seconds of the previous button press):
1. CHMSL/Cargo Bed Lights – On
2. Cargo Mirror Lights – Off
3. Cargo Switch Indicator (if equipped) – On
Next Press
1. CHMSL/Cargo Bed Lights – Off
2. Cargo Mirror Lights – On
3. Cargo Switch Indicator (if equipped) – On
Next Press
1. CHMSL/Cargo Bed Lights – Off
2. Cargo Mirror Lights – Off
3. Cargo Switch Indicator (if equipped) – Off
Become familiar with and follow all state and local laws that apply to cargo lamp operation.