2019 GMC SIERRA trailer

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Refer to your Owner’s Manual to learn about the information being relayed by the lights, gauges and indicators on the instrument cluster.

See In Brief in your Owner’s Manual.
Driver’s Heated/Ventilated Seat ButtonsF
Infotainment System (8-inch* screen shownF)
Passenger’s Heated/Ventilated Seat ButtonsF
Infotainment System Controls Climate ControlsF
USB Ports/ Accessory Power Outlet/120-Volt Power OutletF
Integrated Trailer Brake ControlF
Wireless Charging PadF
Lane Keep AssistF/Park AssistF/Auto Engine Stop-Start Disable/Power TailgateF/Hazard Warning Flashers Buttons
F Optional equipment *Screen measured diagonally
Traction Control-StabiliTrak Off/ Power OutletF/Hill Descent ControlF/ Power WindowsF/MultiPro Power Assist StepsF Buttons
Vehicle Ahead
Antilock Brake System
Low Tire Pressure
Door Ajar
Charging System
Driver Seat Belt Reminder
2 Passenger Seat Belt Reminder
AUTO 4WD Mode

15F Optional equipment
DRIVER ASSISTANCE SYSTEMSF
REAR VISION CAMERA/SURROUND VISIONF
FRONT PEDESTRIAN BRAKING – During daytime driving, the system detects pedestri-ans directly ahead up to a distance of approximately 131 ft. and displays an amber indicator. When approaching a detected pedestrian too quickly, a red alert flashes on the windshield and the Safety Alert Seat pulses or rapid beeps sound (if selected). The
system may prepare the brakes or automatically brake the vehicle.
To set to Alert and Brake, Alert, or Off, go to Settings > Vehicle > Collision/Detection Systems > Front Pedestrian Detection.
FRONT AND REAR PARK ASSIST – During low-speed parking maneuvers, the system provides “distance to closest object” information on the Driver Information Center and the Safety Alert Seat pulses or a beep sounds (if selected). When an object is very close, the Safety Alert Seat pulses or 5 beeps sound (if selected).
REAR CROSS TRAFFIC ALERT – When the vehicle is in Reverse, the system warns of cross traffic coming in either direction by displaying a red alert on the infotainment screen and pulsing the left or right side of the Safety Alert Seat or sounding beeps (if selected).
To turn only Rear Cross Traffic Alert on or off, go to Settings > Vehicle > Collision/Detection Systems > Rear Cross Traffic Alert.
To turn Front and Rear Park Assist and Rear Cross Traffic Alert on or off, press the Park Assist button on the center console.
See Driving and Operating in your Owner’s Manual.
REAR VISION CAMERA
When the vehicle is in Reverse below 8 mph, a view of the area behind the vehicle displays on the infotainment screen. Camera view buttons are at the bottom of the screen.
Touch the Guidance Lines or Hitch Guid ance button to change the guidelines.
Touch the Hitch View button for a zoomed-in view of the hitch area.
SURROUND VISION
Rear, front or side camera views along with a view of the area surrounding the vehicle are displayed on the infotainment screen when the vehicle is in Reverse or Drive below 8 mph. Camera view
buttons are at the bottom of the screen.
Touch the Guidance Lines or Hitch Guidance button to change the guidelines.
Touch the Hitch View button for a zoomed-in view of the hitch area.
To check the trailer when in Drive above 8 mph, touch the Camera icon on the
infotainment screen. Touch X to exit the view.
See Driving and Operating in your Owner’s Manual.
Rear Vision Camera screen
Surround Vision Camera screen

17F Optional equipment
HILL DESCENT CONTROLF (X31)
INTEGRATED TRAILER BRAKE CONTROL (ITBC)F
Hill Descent Control sets and maintains vehicle speed from 1–14 mph while descending a steep incline in a forward or reverse gear.
1. Press the Hill Descent Control button on the center of the instrument panel. Vehicle speed must be below 31 mph to enable the system. The Hill Descent Control symbol will illuminate on the instrument cluster.
2. Increase or decrease speed by applying the accelerator or brake pedal or use the Cruise Control +/– buttons on the steering wheel. The adjusted speed becomes the new set speed. The symbol flashes when the system is actively applying the brakes to maintain vehicle speed.
See Driving and Operating in your Owner’s Manual.
The ITBC system can be used to adjust the amount of power output, or Trailer Gain, available to the trailer brakes. The control panel is located on the left side of the instrument panel. ITBC information is dis-played on the Driver Information Center.
Squeeze the levers together on the
control panel (left lever does not move) to manually apply the trailer brakes.
Adjust the Trailer Gain by pressing the +/– adjustment buttons on the control panel.
The trailer app will remember your Trailer Gain adjustments for each trailer profile.
See Driving and Operating in your Owner’s Manual.
TIRE PRESSURE MONITOR
The Low Tire Pressure warning light on the instrument cluster illuminates when one or more of the vehicle’s tires is significantly underinflated. Fill the tires to the proper tire pressures listed on the Tire and Loading Information label, located below the driver’s door latch. Current tire pressures can be viewed on the Driver Information Center.
The Tire Fill Alert provides visual and audible alerts to help when inflating a tire to the recommended tire pressure (does not apply to spare tire). When the recommended pressure is reached, the horn sounds and the turn signals change from flashing to solid.
Refer to your Owner’s Manual for information about normal monthly tire maintenance.
See Driving and Operating in your Owner’s Manual.

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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
F Optional equipment
TRAILERINGF
TRAILERING APP
The in-vehicle Trailering app on the Home page of the infotainment screen helps with a number of trailering features, including:
• Hitching and setup with pre-departure checklists
• Maintenance reminders
• Trailer tire pressure monitoringF
• Trailer light testing
• Customizing and saving trailer profiles
• Trailer Gain settings saved for each trailer profile.
• Trailer theft detection (requires an active OnStar service plan)
Trailering App information also is available with the myGMC mobile app.
HITCH AREA LIGHTING
Press the Cargo Lamp button on the left side of the instrument panel to turn the hitch lamp on/off.
TRAILERING INFORMATION LABEL
The Trailering information label, located by the driver’s door latch, provides vehicle-specific weight information to help when loading the vehicle.
See Driving and Operating in your Owner’s Manual.

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The tailgate has 6 functional positions to improve loading, unloading and access to the cargo box.
1. Primary Gate
Open the primary gate for access to the cargo box.
2. Primary Gate Load Stop
With the primary gate open, the load stop helps keep longer items secure in the cargo box.
3. Easy Access
The inner gate folds down for easier reach into the cargo box to access items near the cab.
4. Full-width Step
With the primary gate open, the inner gate folds into a sturdy step (up to 375 lbs.) with a conve-nient handle for easy cargo box entry and exit.
5. Inner Gate Load Stop
With the primary gate closed, fold the inner gate for two-tier storage and open the load stop to help keep longer items secure.
6. Inner Gate Work Surface
With the primary gate closed, fold the inner gate for two-tier storage or for use as a standing-height work surface.
Note: Do not lower the inner gate with the primary gate open if a hitch ball or trailer is attached.
OPEN THE INNER GATE
Press the upper button (A) on the tailgate.
OPEN THE PRIMARY GATE
Press the lower button (B) on the tailgate.
Press the Power Tailgate button twice on the Remote Keyless Entry transmitter.
Press the Power Tailgate button on the
center of the instrument panel.
OPEN THE PRIMARY GATE AND INNER GATE
Press the lower button and then upper button (B then A) on the tail-gate consecutively.
OPEN THE LOAD STOP OR STEP
Press the release bar (C).
GMC MULTIPRO TAILGATE OPERATION
F Optional equipmentSee Keys, Doors and Windows in your Owner’s Manual.
A
B
C
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