2018 GMC SIERRA ignition

4
REMOTE KEYLESS ENTRY TRANSMITTER (KEY FOB)
DOOR LOCKS
POWER MIRRORS
Door Locks
To lock or unlock all doors, press the power door Lock/ Unlock button, located on the front doors.
Note: To change the lock and unlock settings, go to Settings > Vehicle > Power\
Door Locks.
To open a locked door from inside, pull the inside door handle to unlock\
the door and then pull the door handle again to open the door.
Locking Tailgate
To lock or unlock the tailgate, use the door key or the key fob.
See Keys, Doors and Windows in your Owner’s Manual.
Power Mirror Adjustment
Press the Power Mirror Selector switch to select the driver’s or passenger’s mirror; use the four-way control to adjust the mirror.
Power Folding Mirror
Press the Power Folding Mirror button to fold or unfold the mirrors.
See Keys, Doors and Windows in your Owner’s Manual.
Unlock
Press to unlock the driver’s door. Press again to unlock all doors and tailgate.
Press and hold to lower all windows.
Lock
Press to lock all doors and tailgate.
Vehicle Locator/Panic Alarm
Press and release to locate your vehicle. The turn signal lamps will flash and the horn will sound.
Press and hold to activate the alarm. The turn signal lamps will flash and the horn will sound until the button is pressed again or the igni-tion is turned on.
Note: To change the remote lock, unlock, and remote start settings, go to Settings > Vehicle > Remote Lock, Unlock, Start.
Remote Vehicle Start
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.
• During a remote start, the engine will run for 10 minutes.
• Press and hold the button until the parking lamps turn off to cancel a remote start.
Note: If the remote start heated/vented seat option is selected, the heated/vented seat button indicators do not illuminate and the temperature performance of the unoccupied seat may be reduced during the remote start. The heated/vented seat turns off when the ignition is turned on.

See Keys, Doors and Windows in your Owner’s Manual.

5
Seat Adjustments
A. Seat Cushion Adjustment
Move the front horizontal control to move the seat forward or rearward, or 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, power outside mirrors and adjustable pedals to the desired positions.
2. Press and release the SET button and then press and hold button 1 on the driver’s door until two beeps sound.
3. Repeat the steps using button 2 for a second driver.
Set Exit Position
1. Adjust the driver’s seat and adjustable pedals to the desired positio\
ns.
2. Press and release the SET button and then press and hold the Exit button on the driver’s door until two beeps sound.
Recall Positions
With the vehicle in Park and the ignition on, press and release button 1 or 2 or the Exit button to recall the stored position.
At any time, press and hold button 1 or 2 on the driver’s door until the stored position is reached. Releasing the button before the stored position is reached canc\
els the recall.
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 Auto Memory Recall or Easy Exit Options, go to Settings > Veh\
icle > Comfort and Convenience > Auto Memory Recall or Easy Exit Options.
See Seats and Restraints in your Owner’s Manual.
POWER SEATS
HEAD RESTRAINTS
To raise the head restraint, pull the head restraint up.
To lower the head restraint, press the button on top of the seatback and\
push the head restraint down.
See Seats and Restraints in your Owner’s Manual.
AC
B

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CRUISE CONTROL
Setting Cruise Control
1. Press the On/Off button. The Cruise Control symbol will illuminate in white on the instrument cluster.
2. When traveling at the desired speed, press the SET– button to set the speed. The symbol will illuminate in green on the instru-ment cluster.
Adjusting Cruise Control
RES+ Resume/Accelerate
Press to resume a set speed.
When the system is active, press once to increase speed 1 mph; press and\
hold to continue increasing the speed.
SET– Set/Coast
When the system is active, press once to decrease speed 1 mph; press and\
hold to continue decreasing the speed.
Cancel
Press to cancel the cruise control without erasing the set speed from me\
mory.
Pressing the brake pedal also will cancel the cruise control.
The set speed is erased when cruise control or the vehicle ignition is t\
urned off.
See Driving and Operating in your Owner’s Manual.
TRI-MODE POWER STEPSF (LD MODELS ONLY)
The Tri-Mode Power Steps extend or retract when the door is opened or cl\
osed.
To enable/disable the operation of the Tri-Mode Power Steps, press and h\
old the switch on the center of the instrument panel for 4 seconds.
Extend the Steps
With the vehicle in Park or Neutral:
Press the switch on the center of the instrument panel to fully extend both steps\
.
Press the switch again to extend the steps to the tire. The kick switch is disabl\
ed when using the instrument panel switch.
Press the switch again to retract the steps.
Kick Switch
With the vehicle in Park and the doors unlocked, kick the switch on the \
rear end of the step to extend the step to the tire. Kick the switch again to retract the step.
See Keys, Doors and Windows in your Owner’s Manual.
F Optional equipment