2020 GMC SIERRA mirror

2
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

4F Optional equipment
KEYLESS ACCESS SYSTEMF
REMOTE KEYLESS ENTRY TRANSMITTER (KEY FOB)F
The Keyless Access System enables operation of the doors and tailgate without
removing the Remote Keyless Entry (RKE) transmitter from your pocket or purse. The transmitter must be within 3 feet of the tailgate or the door being unlocked.
KEYLESS UNLOCKING
With the transmitter within range:
Press the button on the driver’s door handle to unlock the driver’s door; press it again within 5 seconds to unlock all doors and tailgate.
Press the button on a passenger door handle to unlock all doors and tailgate.
Press the lower button on the tailgate to lower the standard tailgate.
KEYLESS LOCKING
With the ignition off, the transmitter removed from the vehicle, and all doors closed:
Press the button on any door handle to lock all doors and tailgate immediately.
If Passive Locking is turned on, all doors will lock automatically after a short delay.
Note: To change the door lock and unlock settings, go to Settings > Vehicle > Remote Lock, Unlock, Start.See Keys, Doors and Windows in your Owner’s Manual.
Lock
Press to lock all doors and tailgate.
Unlock
Press to unlock the driver’s door.
Press again to unlock all doors and tailgate.
Press and hold until the win-dows are fully open.F To enable, go to Settings > Vehicle > Remote Lock, Unlock, Start.
Press and hold the Lock/Unlock button for 1 second to fold/unfold the power mirrors.F To enable, go to Settings > Vehicle > Comfort and Convenience.
Power Release TailgateF
Press twice to lower the tailgate.
Vehicle Locator/Panic Alarm
Press and release to locate your vehicle. The exterior lamps flash and the horn chirps 3 times.
Press and hold to activate the alarm. Press again to cancel the alarm.
Remote Vehicle StartF
Press and release the Lock button and then press and hold the button until the turn
signal lamps flash to start the engine from outside the vehicle. After entering the vehicle, turn on the ignition.
To cancel a remote start, press and hold the button until the parking lamps turn off.
See Keys, Doors and Windows in your Owner’s Manual.

7
SEAT ADJUSTMENTS
A. Seat Cushion Adjustment
Move the horizontal control to move the seat forward or rearward and to tilt, raise or lower the seat.
B. Seatback Adjustment
Move the vertical control to recline or raise the seatback.
C. Lumbar Adjustment
Move the rear control to adjust the lumbar support.
SET MEMORY POSITIONS
1. With the vehicle in Park, adjust the driver’s seat and power outside mirrorsF to the desired positions.
2. Press and release the SET button on the driver’s door. A beep will sound.
3. Immediately press and hold button 1 or 2 until two beeps sound. Use the button that matches the Driver Information Center welcome message indicating driver 1 or 2 (key fob 1 or 2).
To store a seat position for more clearance when exiting the vehicle, repeat these steps using the Exit button instead of button 1 or 2.
RECALL POSITIONS
Press and hold button 1 or 2 or Exit until the set position is reached.
The memory/exit positions can be programmed to be recalled automatically when the ignition is turned on/off (for exit recall, the driver’s door must be opened).
To set the automatic recall options, go to Settings > Vehicle > Seating Position > Set Entry Memory and Set Exit Memory.
See Seats and Restraints in your Owner’s Manual.
POWER FRONT SEATSF
F Optional equipment
FRONT SEAT STORAGEF
The bench seat has a foldable center seatback and may have a center storage compartmentF.
Fold down the center seatback to access the storage compartment and cupholders. Press the latch and lift to open the storage compartment.
The bucket seats have a center console with a storage compartment.
Press the latch and lift to open the storage compartment.
See Seats and Restraints in your Owner’s Manual.
AC
B

8
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.

16F Optional equipment
DRIVER ASSISTANCE SYSTEMSF
Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings and road conditions at all times. Read your Owner’s Manual for important feature limitations and information.
SAFETY ALERT SEAT – The driver’s seat pulses — left side, right side or simultaneously — to alert the driver of the direction of potential hazards.
Audible alerts or seat pulsing alerts may be selected. To change the alert settings, go to Settings > Vehicle > Collision/Detection Systems > Alert Type.
LANE CHANGE ALERT WITH SIDE BLIND ZONE ALERT – While driving, the system dis-plays a warning symbol on the left or right side mirror when a vehicle is detected in that side blind zone area or rapidly approaching that area. The warning symbol flashes if a turn signal is activated when a vehicle has been detected on the same side.
To turn on or off, go to Settings > Vehicle > Collision/Detection Systems > Lane Change Alert.
FORWARD COLLISION ALERT – The Vehicle Ahead Indicator is green when a vehicle is detected and is amber when
following a vehicle ahead much too closely. When approaching a vehicle directly ahead too rapidly, a red alert flashes on the wind-shield and the Safety Alert Seat pulses or rapid beeps sound (if selected).
Press the Collision Alert button on the steering wheel to set the alert timing to Far, Medium, or Near.
FOLLOWING DISTANCE INDICATOR – The following distance to the vehicle ahead is indicated in seconds under the Info menu on the Driver Information Center. If no
vehicle is detected ahead, dashes are displayed.
ENHANCED AUTOMATIC EMERGENCY BRAKING – In detected potential imminent collision situations with vehicles directly ahead, the system can provide alerts and enhance driver braking or apply the brakes, if you have not already done so, to help reduce the severity or help avoid collisions at very low speeds.
To set Enhanced Automatic Emergency Braking and Forward Collision Alert to Alert and Brake, Alert, or Off, go to Settings > Vehicle > Collision/Detection Systems > Forward Collision System
LD Model shown
See Driving and Operating in your Owner’s Manual.

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CRUISE CONTROLF
SETTING CRUISE CONTROL
Press the On/Off button. The Cruise Control symbol will illuminate in white on the instrument cluster.
When traveling at the desired speed, rotate the thumbwheel down to set the speed. The symbol will illuminate in green on the instrument cluster.
ADJUSTING CRUISE CONTROL
+RES Resume/Accelerate
Rotate the thumbwheel up to resume a set speed. When active, rotate the thumbwheel up to increase speed 1 mph; rotate and hold to continue increasing speed.
–SET Set/Coast
When active, rotate the thumbwheel down to decrease speed 1 mph; rotate and hold to continue decreasing speed.
Cancel
Press the button, or press the brake pedal, to cancel Cruise Control without erasing the set speed from memory.
The set speed is erased when Cruise Control or the vehicle ignition is turned off.
ADAPTIVE CRUISE CONTROL–ADVANCEDF (LD MODEL)
The system enhances regular Cruise Control to maintain a following gap — the time between your vehicle and a vehicle detected directly ahead — by accelerating or brak-ing automatically while you continue to steer.
Press the Following Gap button to select a following gap setting of Far, Medium, or Near. This is also the Forward Collision AlertF setting.
Press and hold the Cancel button to switch between regular Cruise Control and Adaptive Cruise Control-Advanced.
See Driving and Operating in your Owner’s Manual.
REAR CAMERA MIRRORF
The rear camera mirror provides a wider, less obstructed field of view to assist when driving, changing lanes and checking traffic conditions.
A. On/Off
Pull or push the lever at the bottom of the mirror to turn the video display on or off.
B. Selection Control
Press and release the button to select the brightness, zoom, or tilt feature.
C. + / –
Press and release either button to adjust the selected view.
See Keys, Doors and Windows in your Owner’s Manual.
ABC
F Optional equipment