GMC SIERRA 2025 Manual
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GMC SIERRA 2025 Manual

GMC SIERRA 2025 Manual

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GETTING TO KNOW YOUR
2025 SIERRA
2500 HEAVY DUTY / 3500 HEAVY DUTY
gmc.com
Review this quick reference guide for an overview of some important features in your GMC Sierra Heavy Duty. Some
equipment described in this guide may not be included in your vehicle. Contact your dealer for details on a specific
vehicle. All information contained in this guide is based on the latest information available at the time of printing and
is subject to change without notice. More information can be found in your Owner's Manual and at gmc.com/owners.
For easy reference, keep this guide in your glove box.
Certain restrictions, precautions and safety procedures apply to your vehicle.
Please read your Owner's Manual for complete instructions.
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Summary of Contents for GMC SIERRA 2025

  • Page 1 Review this quick reference guide for an overview of some important features in your GMC Sierra Heavy Duty. Some equipment described in this guide may not be included in your vehicle. Contact your dealer for details on a specific vehicle.

  • Page 2: Instrument Panel

    INSTRUMENT PANEL Turn Signal/ Driver Cruise Control/Forward Windshield Wipers Driver Memory Controls Information Center Collision Alert/Heated Lever/IntelliBeam Information Seat (on instrument Controls /Voice Steering Wheel Buttons Control Center Buttons panel) Recognition Buttons Electric Power Exterior/ Audio Next/ Steering Wheel Audio Volume Parking Mirror Controls...
  • Page 3 Infotainment Climate Controls/Driver's & System Power- Infotainment Front Passenger's Heated & Volume Control/ System Ventilated Seat Buttons Home Page Button Touchscreen Integrated Diesel Exhaust Brake Traction Control-StabiliTrak Engine Trailer Brake Ports Lane Departure Warning/Park Off/Hill Descent Control Start/Stop Control Assist /Power Tailgate Express-Down Power Button...

  • Page 4: Keyless Access System

    REMOTE KEYLESS ENTRY TRANSMITTER (KEY FOB) Vehicle Locator/Panic Alarm Lock Press and release to locate your vehicle. Press to lock all doors The exterior lamps flash and the horn and tailgate. chirps 3 times. Unlock Press and hold to activate the alarm. Press to unlock the Press again to cancel the alarm.

  • Page 5: Keyless (Push-Button) Start

    KEYLESS (PUSH-BUTTON) START The Remote Keyless Entry transmitter (key fob) must be in the vehicle to turn on the ignition. STARTING THE ENGINE/ON With the transmission in Park or Neutral, press and hold the brake pedal and then press the ENGINE START/STOP button to start the engine.

  • Page 6: Driver Information Center

    DRIVER INFORMATION CENTER The Driver Information Center (DIC) on the instrument cluster displays a variety of vehicle messages and system information. BASE DIC CONTROL Use the trip odometer reset stem on the instrument cluster to access the DIC menu. Turn the stem to scroll through the menu. Press and hold the stem to reset an item.

  • Page 7: Vehicle Customization

    CLIMATE CONTROLS/VEHICLE CONTROLS AUTO/Air Delivery A/C / Modes/SYNC Passenger's Driver's Defrost Mode/ Automatic Operation/ Heated/ Heated/ Driver’s Rear Window- Defog, Vent, Floor Conditioning/ Passenger’s Ventilated Ventilated Temp. Heated Outside Modes/Synchronize Speed/ Recirculation Temp. Seat Seat Control Mirror Defog Settings On/Off Mode Control Controls...

  • Page 8: Infotainment System

    The infotainment system uses a Bluetooth or USB connection to link to a compatible device, such as a smartphone or portable audio player/iPod , and offers hands-free ® voice control. For additional information, visit gmc.com/support. MANAGING HOME PAGE ICONS 1. Press the Home button.
  • Page 9 INFOTAINMENT SYSTEM SIRIUSXM WITH 360L† The personalized content of SiriusXM with 360L offers more than 200 channels, includ­ ing ad-free music, sports, comedy, talk and news, along with access to On Demand shows, performances and interviews. Certain features require a SiriusXM subscription and a Connected Access plan.
  • Page 10 4G LTE WI-FI® HOTSPOT With the vehicle’s available built-in 4G LTE Wi-Fi Hotspot, up to 7 devices (smartphones, tablets and laptops) can be connected to high-speed internet. Visit gmc.com/support for more information on use and limitations. For details about all available services, visit onstar.com.
  • Page 11 POWER FRONT SEATS SET MEMORY POSITIONS 1. With the vehicle in Park, adjust the driver’s seat and power outside mirrors 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).

  • Page 12: Driver Assistance Systems

    DRIVER ASSISTANCE SYSTEMS Safety or driver assistance features are not a 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.

  • Page 13: Adaptive Cruise Control

    DRIVER ASSISTANCE SYSTEMS LANE CHANGE ALERT WITH SIDE BLIND ZONE ALERT /TRAILER SIDE BLIND ZONE ALERT – While driving, the system displays a warning symbol on the left­ or right­ side mirror when a moving vehicle is detected rapidly approaching or is in that side blind zone.

  • Page 14: Four-Wheel Drive

    TRACTION SELECT SYSTEM /FOUR-WHEEL DRIVE TRACTION SELECT MODES The Traction Select (Drive Mode) settings automatically adjust various vehicle control systems based on driving preferences, weath­ er and road conditions. The modes are dis­ played on the Driver Information Center (DIC). Rotate the control knob (A) to select a mode.

  • Page 15: Lamp Controls

    LIGHTING LAMP CONTROLS Rotate the control knob to activate the exterior lamps. Off/On AUTO Automatically activates the exterior lamps depending on outside lighting conditions. Parking Lamps Headlamps INTELLIBEAM SYSTEM Fog Lamps Press to turn the fog lamps on/off. The IntelliBeam system automatically turns the high­beam headlamps on/ Instrument Panel Brightness off based on traffic conditions at night...

  • Page 16: Rear Vision Camera

    Bed View screen ADDITIONAL TRAILER CAMERA VIEWS Multiple views to aid in trailering are shown on the infotainment screen using the vehicle cameras and up to two additional wired GMC accessory cameras mounted on the rear or interior of the trailer.
  • Page 17 REAR CAMERA MIRROR The Rear Camera Mirror provides a wider, less-obstructed field of view than a tradi- tional mirror 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.
  • Page 18 GMC MULTIPRO TAILGATE OPERATION The tailgate has 6 functional positions to improve access to the cargo box. To operate the tailgate, it must be unlocked or the key fob must be within 3 feet of the tailgate. 1. Primary Gate Open the primary gate for access to the cargo box.
  • Page 19 GMC MULTIPRO TAILGATE OPERATION OPEN THE PRIMARY GATE AND INNER GATE Press the lower button and then upper button (B, then A) on the tailgate consecutively. OPEN THE LOAD STOP OR STEP Press the release bar (C). See Keys, Doors and Windows in your Owner’s Manual.

  • Page 20: Roadside Assistance

    1-888-881-3302 TTY Users: 1-888-889-2438 As the owner of a new GMC, you are automatically enrolled in the GMC Roadside Assistance program for up to 5 years/60,000 miles, whichever occurs first, at no expense to you. The GMC Roadside Assistance toll-free number is staffed by a team of trained advisors who are available 24 hours a day, 365 days a year to contact a ser­...

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