2020 GMC SIERRA mirror controls

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INSTRUMENT PANEL
Engine Start/Stop ButtonF
Cruise Control/ Forward Collision AlertF/Heated Steering WheelF Buttons
Electric Parking Brake Switch
Power MirrorF/Window Buttons
Driver Information Center ControlsF/Voice Recognition Buttons
Audio Volume Control (behind steering wheel)
Steering Wheel Adjustment Lever
Audio Next/Previous Favorite Station Controls (behind steering wheel)
Exterior/Instrument Panel/Cargo Lamp Controls
4WD ControlsF/Drive Mode Control
Turn Signal/Windshield Wipers Lever
Range Selection Mode Buttons
Driver Information Center
HUD ControlsF (behind steering wheel)
Low Fuel
Traction Control Off
Brake System
Cruise Control
StabiliTrak Active
StabiliTrak Off
Forward Collision Alert
Security
PARK Electric Parking Brake
Electric Parking Brake Service
Lights On Reminder
Airbag Readiness
Engine Oil Pressure
Check Engine
Lane Keep Assist (LD Model)
Symbols
LD gasoline model shown

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REAR SEATSF
POWER MIRRORSF/TRAILER-TOW MIRRORSF
REAR SEAT STORAGE
Seatback storage is an ideal location for charge cords, tablets, flashlights or rain gear.
Pull the tab (A) to access the storage compartment in the outboard seat-backs.
Lift up either side of the 60/40-split rear seat to access the storage areas under the seat.See Storage in your Owner’s Manual.
POWER MIRROR ADJUSTMENT
Press the Mirror Selector button to select the driver or passenger side
mirror; use the four-way control pad to adjust the mirror.
POWER FOLDING MIRROR
Press the Folding Mirror button to fold or unfold the mirrors.
TRAILER-TOW MIRRORS
The trailer-tow mirrors can be extended for better visibility when towing a trailer. The lower wide-field view mirror adjusts manually.
MANUAL EXTENSIONF
To extend the manual mirror, grasp the mirror housing and pull back and rear-ward in one motion. The housing extends on a curved arc. Push in the housing to return the mirror to its original position.
POWER EXTENSIONF (HD MODEL)
Press the Power Extend button to extend or retract the power mirror.
Note: Reset the power mirrors if they are adjusted manually by using the power controls to fold/unfold or extend/retract the mirrors to their normal position.
See Keys, Doors and Windows in your Owner’s Manual.
REAR SEAT REMINDER
A Rear Seat Reminder message may display on the Driver Information Center when the vehicle is turned off. Check the rear seat before exiting the vehicle. The system does not actually detect people or items in the rear seat; instead, under certain conditions, it detects when a rear door has been opened, indicating that there may be something in the rear seat. See Seats and Restraints in your Owner’s Manual.
F Optional equipment
A

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CLIMATE CONTROLS/VEHICLE CONTROLSF
AUTO Driver’s Temp. Control/Automatic OperationF
SYNC Passenger’s Temp. Control/Link passenger’s setting to driver’s settingF
AC/ Air Conditioning/ Recirculation Mode
Fan Speed/ On/Off
Air Delivery Modes: Defog Vent Floor
MAX/REAR Defrost Mode/Rear Window-Heated Outside Mirror DefogF
Park Assist On/OffF
Lane Keep Assist (LD Model) or
Lane Departure Warning (HD Model) On/OffF
Hill Descent Control On/OffF
Power Assist Steps On/OffF (LD Model)
$ Auto Engine Stop/Start Disable On/Off (LD Model)
Press to lower the tailgate
Cargo Box Power Outlet On/OffF (Ignition must be On)
Hazard Warning Flashers On/Off
Traction Control/ StabiliTrak On/Off
Dual automatic climate controlsF shown
To apply the parking brake, press the
Parking Brake button on the left side of the instrument panel.
To release the parking brake, turn on the ignition, press the brake pedal, and then press the button.
See Driving and Operating in your Owner’s Manual.
ELECTRIC PARKING BRAKE
See Introduction in your Owner’s Manual.
F Optional equipment

15F 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 lampsF. 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 position and the system is activated, indicated by a green on the instrument cluster. A blue appears when the high-beam headlamps are on. The system is turned off if the high/low-beam changer or the flash-to-pass feature is used.
To turn the IntelliBeam system on or off, press the button on the end of the turn signal lever.
Note: IntelliBeam activates the high-beam headlamps only when driving over 25 mph.
See Lighting in your Owner’s Manual.
WINDSHIELD WIPERS
Rotate the band on the lever to activate the wipers.
HI Fast wipes
LO Slow wipes
Intermittent wipes
Rotate the band up for more frequent wipes or down for less frequent wipes.
OFF
1x Single wipe
Washer Fluid
Push the button to spray washer fluid on the windshield.
See Instruments and Controls in your Owner’s Manual.