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2023 GMC Sierra 2500HD AT4 Crew Cab 4x4 Duramax Diesel Power, Off Road Capability, Fully Loaded!
** CLEAN CARFAX. NO ACCIDENTS! **
The 2023 GMC Sierra 2500HD AT4 Crew Cab 4x4 delivers heavy duty capability, premium comfort, and advanced technology in a rugged off road ready truck. Designed for serious towing, hauling, and all terrain performance, the AT4 trim combines diesel power with upscale features for both work and everyday driving.
Finished in Onyx Black with a premium interior, this Sierra offers bold styling with refined details.
Duramax Diesel Performance with Heavy Duty 4x4
Under the hood is the legendary 6.6L Duramax® Turbo Diesel V8 engine paired with a 10 speed automatic transmission, delivering massive torque and exceptional towing capability. The 4x4 system with locking differential ensures traction and control in any condition.
Performance highlights:
6.6L Duramax® Turbo Diesel V8
10 Speed Automatic Transmission
Four Wheel Drive (4x4)
Locking/Limited Slip Differential
Exhaust Brake
Off Road Suspension (X31 Package)
Heavy Duty Cooling & Air Filtration
Built to tow, haul, and handle demanding environments.
AT4 Premium Packages & Equipment
This Sierra is exceptionally equipped with key packages:
AT4 Premium Plus Package
Premium interior upgrades
Power sunroof
AT4 Preferred Package
Navigation system
Premium audio system
Universal garage door opener
Aerial view camera system
Technology Package
Head Up Display
Advanced camera views
Gooseneck / 5th Wheel Prep Package
Driver Alert Packages I & II
Blind spot monitoring
Rear cross traffic alert
Lane departure warning
Forward collision alert
Automatic high beams
Off Road Design & Exterior Features
Power Retractable Running Boards
Tonneau Cover
Spray In Bedliner
Off Road Wheels & Tires
LED Lighting with Signature DRLs
Fog Lamps
Black AT4 Styling Accents
Aggressive, trail ready design with premium functionality.
Premium Interior & Comfort
Inside, the AT4 delivers comfort and functionality:
Heated Front Seats
Power Driver & Passenger Seats with Lumbar
Memory Driver Settings
Floor Mats
Rear 60/40 Folding Bench Seat with Storage
Multi Zone Climate Control
Spacious Crew Cab layout for passengers and gear.
Technology & Connectivity
Enhanced 8" Digital Driver Display
Backup Camera
Aerial View Camera System
Universal Garage Door Opener
Telematics & Connected Services
Premium Sound System
Bluetooth® & USB Connectivity
Towing & Work Capability
Built for serious work:
Trailer Hitch with Wiring
Hitch Guidance with Hitch View
Integrated Trailer Brake Control
In Vehicle Trailering App
High Output Alternator (220 Amps)
Safety & Driver Assistance
Blind Spot Monitor
Lane Departure Warning
Forward Collision Warning
Rear Parking Aid
Stability & Traction Control
Tire Pressure Monitoring
Why Choose This 2023 GMC Sierra 2500HD AT4?
Duramax diesel with exceptional towing capability
Fully loaded with premium and tech packages
AT4 off road performance upgrades
Advanced trailering and camera systems
Power running boards and premium interior
Ideal for work, towing, and everyday driving
Available Now Schedule Your Test Drive Today!
If youâre searching for a 2023 GMC Sierra 2500HD AT4 for sale, a diesel heavy duty 4x4 truck, or a fully loaded off road pickup, this Sierra delivers power, capability, and premium comfort.
Call, click, or visit today to schedule your test drive.
Garber Chrysler Dodge Jeep Ram operates a virtual dealership offering a wide variety of new and used cars. Conveniently located in Saginaw, MI, we are just a short drive from Bay City, MI and Midland, MI. If you ar