The 2022 GMC Sierra 2500HD AT4 is a heavy-duty truck built for serious work, serious capability, and serious off-road confidence—all wrapped in a bold, aggressive package that stands out anywhere it goes.

Under the hood, it comes equipped with a 6.6L V8 gas engine producing 401 horsepower and 464 lb-ft of torque, paired with a 6-speed automatic transmission and standard 4WD. It’s engineered to handle demanding jobs with ease, offering up to 18,500 lbs of max towing capacity and a payload rating around 3,700–3,800 lbs depending on configuration.

Where the AT4 really separates itself is capability with attitude. It comes factory-equipped with off-road upgrades like a factory lift, skid plates, Rancho shocks, hill descent control, and an automatic locking rear differential. This isn’t just a work truck—it’s a heavy-duty rig that’s ready to leave pavement behind and keep going.

2 Years Young Auto Care includes: Three Oil/Filter Changes | Tire Rotation | Fluid Top Off Multi-Point Inspection | Battery Test | Alignment Check. Please call to schedule your test drive today! Price does not include any dealer installed accessories, please see dealer for details and demonstration. Tax, title, and license fees extra.

Options:

Gooseneck/5th Wheel Package

Gooseneck/5th Wheel Prep Package

Preferred Equipment Group 4SB

X31 Off-Road Package

6 Speakers

6-Speaker Audio System Feature

AM/FM radio: SiriusXM with 360L

Premium audio system: Premium GMC Infotainment System

Radio: AM/FM w/Premium GMC Infotainment System

SiriusXM w/360L

Steering Wheel Audio Controls

Air Conditioning

Automatic temperature control

Electric Rear-Window Defogger

Front dual zone A/C

Rear window defroster

12-Volt Rear Auxiliary Power Outlet

120-Volt Bed Mounted Power Outlet

120-Volt Instrument Panel Power Outlet

Driver Memory

Memory seat

Power driver seat

Power steering

Power windows

Power Windows w/Driver Express Up/Down

Remote keyless entry

Remote Vehicle Starter System

Steering wheel mounted audio controls

Manual Tilt-Wheel/Telescoping Steering Column

Off-Road Suspension

Speed-sensing steering

Traction control

4-Wheel Disc Brakes

ABS brakes

Dual front impact airbags

Dual front side impact airbags

Electrical Lock Control Steering Column

Emergency communication system: OnStar and GMC Connected Services capable

Front anti-roll bar

Front wheel independent suspension

Keyless Open & Start

Low tire pressure warning

Occupant sensing airbag

Overhead airbag

Power Door Locks

Pickup Box

Brake assist

Electronic Stability Control

Hill Descent Control

Delay-off headlights

Front fog lights

Fully automatic headlights

Panic alarm

Security system

Unauthorized Entry Theft-Deterrent System

Speed control

2-Speed Active Transfer Case

Heavy-Duty 80 Amp Battery

Auto-dimming door mirrors

Bumpers: body-color

Front License Plate Kit

Heated door mirrors

LED Cargo Area Lighting

Off-Road High Clearance Step (LPO)

Painted Black Surround Grille

Power door mirrors

Rear step bumper

Rear Wheelhouse Liners

Spray-On Pickup Box Bed Liner w/AT4 Logo

Turn signal indicator mirrors

2 USB Ports

2 USB Ports (1st Row)

2nd Row Dual USB Charge-Only Ports

4.2" Diagonal Color Display Driver Info Center

Apple CarPlay/Android Auto

Auto-dimming Rear-View mirror

Bed View Camera w/2 Trailer Camera Provisions

Compass

Compass Located In Instrument Cluster

Driver door bin

Driver vanity mirror

Floor-Mounted Center Console

Front Prem Floor Liners w/Removable Carpet Insert

Front reading lights

GMC Connected Access Capable

HD Rear Vision Camera

Heated steering wheel

Illuminated entry

Not Equipped w/Heated 2nd Row Outboard Seats

OnStar & GMC Connected Services Capable

Outside temperature display

Overhead console

Passenger vanity mirror

Rear Prem Floor Liners w/Removable Carpet Insert

Rear reading lights

Rear seat center armrest

Tachometer

Telescoping steering wheel

Tilt steering wheel

Trip computer

Voltmeter

Wi-Fi Hotspot Capable

Wireless Phone Projection

10-Way Power Driver Seat Adjuster w/Lumbar

10-Way Power Passenger Seat Adjuster w/Lumbar

Front Bucket Seats

Front Center Armrest

Heated & Ventilated Front Bucket Seats

Heated Driver & Front Outboard Passenger Seats

Heated front seats

Perforated Leather-Appointed Front Seat Trim

Power passenger seat

Split folding rear seat

Ventilated front seats

Passenger door bin

Hitch Guidance w/Hitch View

In-Vehicle Trailering System App

Integrated Trailer Brake Controller

Red Recovery Hooks

Trailer Tire Pressure Monitor Sensors

18" Machined Aluminum Wheels

Alloy wheels

Deep-Tinted Glass

Power Front Passenger Windows w/Express Up/Down

Power Rear Windows w/Express Down

Variably intermittent wipers

3.73 Rear Axle Ratio