GMC Sierra 3500 HD 2025 Safety Information And Operating Instructions
GMC Sierra 3500 HD 2025 Safety Information And Operating Instructions

GMC Sierra 3500 HD 2025 Safety Information And Operating Instructions

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2025
Sierra/Sierra Denali
2500 HD/3500 HD
Essential Operating and
Safety Information

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Table of Contents
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Summarization of Contents

Introduction
General Information and Resources
Information on accessing owner's manuals via apps, websites, and QR codes.
Vehicle Branding and Trademarks
Lists names, logos, emblems, slogans, model names, and body designs as trademarks.
Using this Manual
Guidance on manual usage, including warnings, dangers, and caution symbols.
Vehicle Symbol Chart
Explanation of various symbols found on the vehicle and in the manual.
Keys, Doors, and Windows
Keys and Locks
Details on vehicle keys and door lock operation.
Doors
Information on transporting items that can catch fire in the truck bed.
Vehicle Security
Explanation of the passive theft-deterrent system and immobilizer operation.
Interior Mirrors
Description and operation of the Rear Camera Mirror (RCM).
Windows
Information and warnings related to vehicle windows.
Seats and Restraints
Head Restraints
Information on head restraint installation and adjustment for safety.
Front Seats
Details on manual and power seat adjustment procedures.
Rear Seats
Information on rear seat features and the Rear Seat Reminder system.
Seat Belts
Guidance on proper seat belt usage, including during pregnancy.
Airbag System
Comprehensive details on airbag types, operation, and safety precautions.
Child Restraints
Guidance on selecting and installing child restraints for various age groups.
Instruments and Controls
Controls
Operation of the windshield wipers and washers, including Rain Sense.
Warning Lights, Gauges, and Indicators
Explanation of vehicle warning lights and gauges.
Seat Belt Reminders
Description of driver and passenger seat belt reminder systems.
Airbag Readiness Light
Information on the airbag system's electrical status indicator.
Passenger Airbag Status Indicator
Details on the passenger sensing system and airbag status indicator.
Brake System Warning Light
Indicates potential issues with the vehicle's brake system.
Tire Pressure Light
Information regarding the Tire Pressure Monitor System (TPMS) light.
Lighting
Exterior Lighting
Operation of exterior lamps, including automatic and manual controls.
Hazard Warning Flashers
How to activate and deactivate the hazard warning flashers.
Driving and Operating
Driving Information
Guidance on off-road recovery, driving, hill conditions, load limits, and truck-camper loading.
Starting and Operating
Procedures for shifting gears, parking, and extended parking.
Engine Exhaust
Information and warnings about engine exhaust and carbon monoxide.
Automatic Transmission
Details on automatic transmission operation and manual mode.
Drive Systems
Explanation of the Four-Wheel Drive system and transfer case operation.
Brakes
Information on the Electric Parking Brake (EPB) system.
Ride Control Systems
Description of Traction Control and StabiliTrak/Electronic Stability Control.
Advanced Driver Assistance Systems
Overview of features like Park Assist, RCTA, FCA, and AEB.
Fuel
Instructions and warnings for filling the fuel tank.
Vehicle Care
General Information
Information on service, parts, and GM-trained technicians.
California Perchlorate Materials Requirements
Information on perchlorate materials in automotive applications.
Vehicle Checks
Guidance for performing your own service work and vehicle checks.
Headlamp Aiming
Information on front headlamp aiming and adjustment after damage.
Wheels and Tires
Comprehensive guide to tires, including pressure, inspection, and rotation.
Jump Starting
Step-by-step instructions for safely jump starting a vehicle's battery.
Towing the Vehicle
Guidelines and cautions for transporting a disabled vehicle.
Service and Maintenance
General Information
Overview of required vehicle maintenance and its importance.
Additional Maintenance and Care
Guidance on cleaning the windshield and maintaining wiper blades.
Customer Information
Online Account
Instructions for creating Chevrolet/GMC online accounts and membership benefits.
Roadside Assistance Program
Details on roadside assistance services, coverage, and calling for help.
Reporting Safety Defects
Procedures for reporting safety defects to government agencies and GM.
Radio Frequency Statement
Information on radio frequency compliance for vehicle systems.
Vehicle Data Recording and Privacy
Explanation of vehicle data recording, cybersecurity, and event data recorders.

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