Introducing the 2025 GMC Sierra 3500HD Crew Cab Standard Box AT4, a powerhouse of capability and luxury. This formidable truck is finished in a striking Thunderstorm Grey Metallic paint, paired with an opulent Jet Black & Kalahari Accent interior, combining rugged strength with refined style. At the heart of the Sierra 3500HD lies the robust 6.6L Duramax Turbo-Diesel engine, delivering impressive torque and performance, matched with a 10-speed automatic transmission for smooth and efficient power delivery. Whether you're towing heavy loads or navigating challenging terrains, this engine ensures you have the power you need. The AT4 trim comes equipped with a comprehensive trailering package, including a hitch view, trailer side blind zone alert, and a trailer brake controller to make towing safer and more convenient. Rear cross traffic alert and HD surround vision offer enhanced awareness, while front and rear park assist, automatic emergency braking, forward collision alert, and front pedestrian braking provide additional safety measures. Inside, the Sierra 3500HD boasts a range of premium features for maximum comfort and convenience. The spacious cabin includes heated and ventilated front seats, heated second-row seating, and a heated steering wheel, ensuring comfort in all conditions. The 13.4 touchscreen with navigation, Bluetooth, Wireless Apple CarPlay, and Android Auto keeps you connected and entertained on the go. Additional amenities include a power sunroof, power sliding rear window, rear camera mirror, and wireless charging for added convenience. The 20 Black Aluminum wheels and GMC Multipro Tailgate enhance both the truck’s style and functionality, while rain-sensing wipers ensure clear visibility in adverse weather conditions. *AMVIC Licensed Dealer

• Jet black with kalahari accents, perforated front leather seating surfaces
• HIGH IDLE SWITCH
• REAR AXLE 3.42 RATIO
• TRANSMISSION ALLISON 10-SPEED AUTOMATIC
• 3 YEARS SIRIUSXM
• LPO OFF-ROAD HIGH CLEARANCE STEP (dealer-installed)
• UNIVERSAL VEHICLE MODULE Includes module customer interface harness and instructions. Provides vehicle data over an open CAN network (J1939). 10 switchable inputs/outputs and Custom Configuration Tool to integrate upfit equipment controls. Software features that support Auto Vehicle Start Shutdown Inhibit Fast Idle and Snow Plow
• Front Collision Warning
• AM/FM Stereo
• Tires - Rear All-Terrain
• LED Headlights
• Automatic Highbeams
• Smart Device Integration
• Bed Liner
• Bluetooth Connection
• Heated Mirrors
• Auxiliary Audio Input
• Privacy Glass
• Power Windows
• Conventional Spare Tire
• Auxiliary Audio Input
• Heated Front Seat(s)
• Daytime Running Lights
• Integrated Turn Signal Mirrors
• Lane Departure Warning
• Floor Mats
• Daytime Running Lights
• Integrated Tailgate Step
• Multi-Zone A/C
• Telematics
• Requires Subscription
• Auto-Dimming Rearview Mirror
• Tire Pressure Monitor
• Cooled Front Seat(s)
• Auxiliary Audio Input
• Traction Control
• Passenger Air Bag Sensor
• Front Side Air Bag
• Rear Defrost
• Rear Bench Seat
• Passenger Air Bag
• Front Collision Mitigation
• Satellite Radio
• Tire Pressure Monitor
• Front Collision Warning
• Requires Subscription
• Power Door Locks
• Seat Memory
• Driver Air Bag
• Telematics
• Bluetooth Connection
• Driver Restriction Features
• Heated Rear Seat(s)
• Requires Subscription
• Back-Up Camera
• Power Windows
• Lane Departure Warning
• Adjustable Steering Wheel
• Stability Control
• Daytime Running Lights
• MP3 Capability
• MP3 Capability

• THUNDERSTORM GRAY
• AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
• GVWR 12 100 LBS. (5488 KG) WITH SINGLE REAR WHEELS
• 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).
• AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package (CF5) power sunroof (CWM) Technology Package and (VXW) Off-Road High Clearance step LPO
• 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.)
• Power Mirror(s)
• Keyless Start
• Intermittent Wipers
• Tow Hitch
• Running Boards/Side Steps
• Tow Hooks
• Four Wheel Drive
• Aluminum Wheels
• Power Steering
• Rain Sensing Wipers
• Fog Lamps
• Power Folding Mirrors
• Locking/Limited Slip Differential
• ABS
• Variable Speed Intermittent Wipers
• Requires Subscription
• Automatic Highbeams
• Navigation System
• Tires - Front All-Terrain
• Bluetooth Connection
• Front Collision Mitigation
• 4-Wheel Disc Brakes
• Mirror Memory
• Security System
• Blind Spot Monitor
• Heated Steering Wheel
• WiFi Hotspot
• Front Head Air Bag
• Keyless Start
• Front Collision Warning
• Leather Seats
• Cruise Control
• Climate Control
• Aerial View Display System
• Power Passenger Seat
• Back-Up Camera
• Smart Device Integration
• Rear Head Air Bag
• Premium Sound System
• Adaptive Cruise Control
• Heated Front Seat(s)
• Passenger Adjustable Lumbar
• Bucket Seats
• Floor Mats
• Keyless Entry
• Power Driver Seat
• Remote Engine Start
• Front Collision Mitigation
• Pass-Through Rear Seat
• Driver Adjustable Lumbar
• Power Door Locks
• Rear Parking Aid
• Steering Wheel Audio Controls
• Cross-Traffic Alert
• MP3 Capability