fog light GMC SIERRA 2021 Get To Know Guide
Page 12 of 20
12F Optional equipment     
LIGHTING
LAMP CONTROLS
Rotate the knob to activate the exterior 
lamps.
 Off/On
AUTO
Automatically activates the exterior lamps 
depending on outside lighting conditions.
 Parking Lamps
 Headlamps
 Fog Lamps 
Press to turn the fog lamps on/off.
 Instrument Panel Brightness
Press and hold the +/– buttons to adjust 
the instrument panel lighting. 
 Task LightingF
Press repeatedly to cycle through the  forward-facing outside mirror lamp options: both lamps on, left lamp on, right lamp on, both lamps off.
 Cargo LampF
With the vehicle in Park, Reverse, or 
Neutral, press to cycle through the cargo 
bed/hitch lamps and/or rear-facing mirror 
lamps
F. The button indicator illuminates 
when the cargo bed lamps are on.  
INTELLIBEAM SYSTEMF
The IntelliBeam system automatically 
turns the high-beam headlamps on/off 
according to surrounding traffic when 
the lamp control is in the AUTO or 
 position and the system is activated,  indicated by a green  on the instru -
ment cluster. A blue  appears when 
the high-beam headlamps are on. 
 To turn the IntelliBeam s ystem on or off, press the  button on the end of 
the turn signal lever with the lamp 
control in the AUTO or 
 position.
Note:  The fog lamps must be off to activate 
the IntelliBeam system. IntelliBeam activates 
the high-beam headlamps only when driving 
over 25 mph.
See Lighting in your Owner’s Manual. 
ADAPTIVE CRUISE CONTROLF
The system enhances regular Cruise 
Control to maintain a driver-selected 
 following gap — the time between your vehicle and a vehicle detected directly 
ahead — by accelerating or braking auto -
matically while you continue to steer. 
 Press and hold the  Cancel button to 
switch between regular  Cruise Control and  Adaptive Cruise Control.
 Use the steering wheel controls to set and adjust Cruise Control or Adaptive Cruise Control.
 With Adaptive Cruise Control active, press and release the  Following Gap  button 
to select a gap setting of Far, Medium or Near. 
See Driving and Operating in your Owner’s Manual.