New 2025 GMC Sierra 2500HD AT4

Your Price: $76,629
$1,176*
Monthly!
+tax. 6.99% APR. $7,663 down. 72 month term; OAC.
34
views
Fuel: Gas
Color: Onyx BlackInterior: Jet Black With Kalahari Accents
Drivetrain: Four Wheel Drive
Engine: 6.6L 8 Cyl.Automatic (10 Speed)
Stock: CG03828VIN: 1GT4UPE75SF303828

Location

Walt Massey Chevrolet GMC Columbia

1480 Hwy 98 E, Columbia, MS, 39429
Call Today (601) 736-3432

Description for 2025 GMC Sierra 2500HD AT4 Truck

The 2025 GMC Sierra 2500HD AT4 is a heavy-duty pickup designed for off-road capability while offering upscale comfort and advanced trailering technology. As part of GMCs off-road-oriented AT4 lineup, this model combines rugged equipment with a host of premium features designed for both work and recreational versatility.

Powered by a 6.6L V8 engine paired with a 10-speed automatic transmission, the Sierra 2500HD AT4 delivers strong towing capacity and torque, enhanced further by the inclusion of a 2-speed active transfer case and the X31 Off-Road Package. This off-road suite includes features such as hill descent control, skid plates, and upgraded suspension tuning, allowing the truck to handle rougher terrains with confidence. The Gooseneck/5th Wheel Prep Package provides integrated support for heavy-duty towing applications.

This four-wheel drive crew cab model is finished in Onyx Black and equipped with a Jet Black interior highlighted by Kalahari accents and leather-appointed seating. Front and rear outboard seats are heated, while the front seats are also ventilated for added comfort in all climates. The power sunroof, rear sliding window with defogger, and deep-tinted glass enhance comfort and visibility.

Inside, the Sierra AT4 integrates a wide range of advanced technology features. A 15-inch multicolor head-up display projects critical information directly into the driver's line of sight. The HD Surround Vision system, Bed View Camera with trailer camera provisions, Trailer Side Blind Zone Alert, and Trailer Viewing Software provide a comprehensive suite of tools for safe trailering and maneuvering. The Technology Package also includes an auto-dimming rearview camera mirror and wireless device charging. Connectivity is handled through GMCs infotainment system with wireless phone projection and SiriusXM with 360L, all enhanced by a Bose Premium 7-speaker audio system.

Convenience features include keyless open and start, a push-button ignition system, remote vehicle start, and a universal home remote. The cabin is well-appointed with a floor-mounted center console, multiple USB charging ports, and premium floor liners with removable carpet inserts. Storage and utility are enhanced with a spray-on bedliner featuring the GMC logo, LED cargo area lighting, and Off-Road High Clearance Steps.

Safety is also a strong focus. The AT4 includes Rear Cross Traffic Alert, Ultrasonic Front and Rear Park Assist, and a Safety Alert Seat. The Theft-Deterrent System with unauthorized entry detection adds another layer of protection when the truck is parked.

This Sierra 2500HD AT4 is covered by the Walt Massey 3 Day Money Back Guarantee. If the vehicle is returned within three business days in like-new condition and with under 300 miles driven, customers may exchange it with no penalty. If the vehicle exceeds 300 miles, a fee of \$1.00 per mile will apply. This program offers added assurance for those seeking confidence in their purchase decision.

Overall, the 2025 Sierra 2500HD AT4 blends trail-ready durability, advanced towing tools, and premium comfort features for drivers who demand capability and refinement in a single package.


Price includes: $500 - GM Military Cash Allowance Program. Exp. 01/02/2026


 

Comfort and Convenience

Air Conditioning
Auto-dimming Door Mirrors
Auto-dimming Rear-View Mirror
Bed View Camera W/2 Trailer Camera Provisions
Driver Vanity Mirror
Front Dual Zone A/C
Inside Rearview Auto-Dimming Rear Camera Mirror
Keyless Open & Start
Manual Tilt-Wheel/Telescoping Steering Column
Occupant Sensing Airbag
Passenger Vanity Mirror
Perforated Leather-Appointed Front Seat Trim
Power Sunroof
Remote Keyless Entry
Remote Vehicle Starter System
Tilt Steering Wheel
Universal Home Remote
 

Entertainment

7 Speakers
AM/FM Radio: SiriusXM With 360L
Bose Premium 7-Speaker Sound System
Radio: AM/FM W/Premium GMC Infotainment System
Steering Wheel Audio Controls
Steering Wheel Mounted Audio Controls
 

Exterior

10-Way Power Driver Seat Adjuster W/Lumbar
10-Way Power Passenger Seat Adjuster W/Lumbar
4-Wheel Disc Brakes
Alloy Wheels
Auto High-beam Headlights
Body Color Wheel Arch Moldings (LPO)
Bumpers: Body-color
Deep-Tinted Glass
Delay-off Headlights
Electric Rear-Window Defogger
Front Anti-roll Bar
Front Fog Lights
Front Rain-Sensing Wipers
Front Reading Lights
Front Wheel Independent Suspension
Fully Automatic Headlights
Gloss Black Header Grille & Grille Insert Bars
Gooseneck/5th Wheel Prep Package
Heated Steering Wheel
LED Cargo Area Lighting
LED Smoked Amber Roof Marker Lamps
Low Tire Pressure Warning
Power Front Passenger Windows W/Express Up/Down
Power Sliding Rear Window W/Defogger
Power Windows
Rain Sensing Wipers
Rear Reading Lights
Rear Step Bumper
Rear Wheelhouse Liners
Rear Window Defroster
Telescoping Steering Wheel
Variably Intermittent Wipers
Wheels: 20" High Gloss Black 8 Spokes Aluminum
 

Interior

Front Bucket Seats
Front Center Armrest
Heated 2nd Row Outboard Seats
Heated Driver & Front Outboard Passenger Seats
Heated Front Seats
Heated Rear Seats
Memory Seat
Multicolor 15" Diagonal Head-Up Display
Outside Temperature Display
Power Driver Seat
Power Passenger Seat
Rear Seat Center Armrest
Safety Alert Seat
Split Folding Rear Seat
Trip Computer
Ventilated Driver & Front Passenger Seats
Ventilated Front Seats
 

Mechanical

120-Volt Bed Mounted Power Outlet
120-Volt Instrument Panel Power Outlet
2-Speed Active Transfer Case
Buckle To Drive
Driver Door Bin
Driver Memory
Heavy-Duty 80 Amp Battery
IntelliBeam Automatic High Beam On/Off
Off-Road Suspension
Power Door Mirrors
Power Steering
Power-Retractable Black Assist Steps
 

Safety

ABS Brakes
Brake Assist
Dual Front Impact Airbags
Dual Front Side Impact Airbags
Electronic Stability Control
Overhead Airbag
Traction Control
Ultrasonic Front & Rear Park Assist
 

Other

2 Charge-Only Rear USB Ports
2 Charge/Data USB Ports Inside Center Console
2 USB Ports
3 Years SiriusXM
3.73 Rear Axle Ratio
AT4 Preferred Package
AT4 Premium Plus Package
Apple CarPlay/Android Auto
Automatic Emergency Braking
Automatic Temperature Control
Compass
Emergency Communication System
Floor-Mounted Center Console
Following Distance Indicator
Forward Collision Alert
Front License Plate Kit
Front Pedestrian Braking
Front Prem Floor Liners W/Removable Carpet Insert
HD Surround Vision
Heated Door Mirrors
Hill Descent Control
Hitch Guidance W/Hitch View
Illuminated Entry
In-Vehicle Trailering System App
Lane Departure Warning System
Off-Road High Clearance Step (LPO)
OnStar Services Capable
Overhead Console
Panic Alarm
Passenger Door Bin
Pickup Box
Preferred Equipment Group 4SB
Push Button Start
Rear Cross Traffic Alert
Rear Prem Floor Liners W/Removable Carpet Insert
Security System
SiriusXM W/360L Trial Subscription
Speed Control
Speed-sensing Steering
Spray-On Pickup Bedliner W/GMC Logo
Tachometer
Technology Package
Trailer Cam Provisions & Trailer Viewing Software
Trailer Side Blind Zone Alert
Turn Signal Indicator Mirrors
Unauthorized Entry Theft-Deterrent System
Voltmeter
Wireless Charging
Wireless Phone Projection
X31 Off-Road Package

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* Note: We always do our best to provide the most accurate and up-to-date information, however, we cannot be held responsible for anything that is listed incorrectly. For new vehicles, price listed does not include accessories. Please contact the dealer/seller for official pricing and vehicle information, and with any questions that you might have. Displayed prices generally do not include taxes and other fees.