2026 GMC Sierra 3500HD AT4

• REAR AXLE 3.42 RATIO
• HIGH IDLE SWITCH
• UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com.
• SUNROOF POWER
• ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
• TRANSMISSION 10-SPEED AUTOMATIC
• TIRES LT275/65R20 E 126/123 BF GOODRICH OFF-ROAD T/A KO3
• GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
• GVWR 12 100 LBS. (5488 KG) WITH SINGLE REAR WHEELS
• TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolour 15" Diagonal Head-Up Display
• AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote (A48) rear sliding power window and (U01) Roof Marker Lamps
• Heated Mirrors
• Tow Hooks
• Premium Sound System
• Front Collision Mitigation
• Passenger Air Bag Sensor
• Requires Subscription
• Power Passenger Seat
• Aerial View Display System
• Remote Engine Start
• MP3 Capability
• Power Windows
• AM/FM Stereo
• Power Door Locks
• Conventional Spare Tire
• Blind Spot Monitor
• Fog Lamps
• Rain Sensing Wipers
• Driver Restriction Features
• Bluetooth Connection
• Variable Speed Intermittent Wipers
• Rear Bench Seat
• Stability Control
• Passenger Adjustable Lumbar
• Rear Head Air Bag
• Heated Rear Seat(s)
• Tire Pressure Monitor
• Smart Device Integration
• Driver Air Bag
• Back-Up Camera
• Heated Steering Wheel
• Satellite Radio
• Bed Liner
• Security System
• Smart Device Integration
• Seat Memory
• Front Collision Warning
• Requires Subscription
• Tow Hitch
• Privacy Glass
• LED Headlights
• Floor Mats
• Power Steering
• Cross-Traffic Alert
• Aluminum Wheels
• Requires Subscription
• Steering Wheel Audio Controls
• 4-Wheel Disc Brakes
• Daytime Running Lights
• Passenger Air Bag
• Cruise Control
• Auto-Dimming Rearview Mirror
• Power Folding Mirrors
• Multi-Zone A/C
• Requires Subscription
• Keyless Start
• Front Head Air Bag
• Cooled Front Seat(s)
• Lane Departure Warning
• Bluetooth Connection
• Leather Seats
• ABS
• Adaptive Cruise Control
• Daytime Running Lights
• Tires - Front All-Terrain
• Floor Mats
• Front Collision Warning
• Lane Departure Warning
• Integrated Turn Signal Mirrors
• Auxiliary Audio Input
• Power Mirror(s)
• Pass-Through Rear Seat
• Bucket Seats
• Power Windows
• Integrated Tailgate Step
• Keyless Start
• Auxiliary Audio Input
• WiFi Hotspot
• Front Collision Mitigation
• Tire Pressure Monitor
• MP3 Capability
• Traction Control
• Locking/Limited Slip Differential
• Four Wheel Drive
• Tires - Rear All-Terrain
• Automatic Highbeams
• Climate Control
• MP3 Capability
• Auxiliary Audio Input
• Mirror Memory
• Driver Adjustable Lumbar
• Rear Parking Aid
• Telematics
• Heated Front Seat(s)
• Intermittent Wipers
• Navigation System
• Power Driver Seat
• Automatic Highbeams
• Daytime Running Lights
• Running Boards/Side Steps
• Back-Up Camera
• Adjustable Steering Wheel
• A/C
• Keyless Entry
• Bluetooth Connection
• Telematics
• Rear Defrost
• Front Collision Warning
• Power Door Locks
• Heated Front Seat(s)
• Front Side Air Bag
• Front Collision Mitigation

" * ENGINE DURAMAX 6.6L TURBO-DIESEL V8 * * TRANSMISSION 10-SPEED AUTOMATIC * * SUNROOF POWER * The 2026 GMC Sierra 3500HD AT4 is the perfect combination of power and luxury for drivers in Fort St. John. Equipped with the mighty Duramax 6.6L Turbo-Diesel V8 engine, this truck delivers an impressive 470 horsepower and 975 lb-ft of torque, making it ideal for towing and heavy-duty tasks. The 10-speed automatic transmission ensures smooth handling and optimal performance on all terrains, whether you're cruising through the city or exploring rugged landscapes. Inside, the Sierra 3500HD AT4 doesn't compromise on comfort or technology. The spacious Crew Cab is designed to accommodate your every need with premium leather seats, a cutting-edge multicolour 15"" Diagonal Head-Up Display, and a sunroof that fills the cabin with natural light. The advanced Technology Package, including a Rear Camera Mirror, lets you stay connected and in control with ease. This model also comes with the AT4 Preferred Package, which includes a universal home remote and rear sliding power window, adding convenience to your daily drive. The Gooseneck/5th Wheel Prep Package further enhances its utility by providing the necessary setup for towing larger loads. Safety features like Front Collision Mitigation, Adaptive Cruise Control, and Blind Spot Monitoring ensure peace of mind on every journey. "