2024 GMC Sierra 2500HD AT4 The Ultimate Heavy-Duty Off-Road Pickup
Overview
The 2024 GMC Sierra 2500HD AT4 is engineered for those who demand uncompromising strength, advanced technology, and rugged off-road capability. Whether you're navigating challenging terrains or towing heavy loads, the Sierra 2500HD AT4 is built to handle it all with confidence and style.
Performance & Powertrain
Under the hood, the Sierra 2500HD AT4 offers two robust engine options:
6.6L V8 Gas Engine: Delivers 401 horsepower and 464 lb-ft of torque, paired with an Allison 10-speed automatic transmission for smooth and efficient power delivery.
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6.6L Duramax Turbo-Diesel V8: Produces 470 horsepower and a staggering 975 lb-ft of torque, making it ideal for heavy towing and hauling.
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Both engines are coupled with a 4WD system, ensuring optimal traction and control in various driving conditions.
Towing & Payload Capacity
The Sierra 2500HD AT4 is designed to handle demanding tasks:
Maximum Conventional Towing Capacity: Up to 18,500 lbs when equipped with the 6.6L Duramax Turbo-Diesel V8 engine.
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Maximum Gooseneck/Fifth-Wheel Towing Capacity: Up to 21,300 lbs, providing exceptional capability for heavy-duty hauling.
Maximum Gross Combined Weight Rating (GCWR): Up to 30,000 lbs, allowing for substantial towing and payload combinations.
Maximum Payload Capacity: Up to 4,043 lbs, accommodating heavy cargo with ease.
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These figures make the Sierra 2500HD AT4 one of the most capable trucks in its class.
Exterior Design
The 2024 Sierra 2500HD AT4 boasts a bold and aggressive exterior design:
20-inch wheels: Wrapped in all-terrain tires, providing enhanced traction and durability.
Red recovery hooks: Not only functional but also add a distinctive touch to the front fascia.
Underbody skid plates: Protect critical components during off-road excursions.
Body-color bumpers: Offer a sleek and cohesive look.
Spray-in bedliner: Ensures the truck bed withstands the rigors of heavy-duty use.
The Sierra 2500HD AT4's design is both functional and stylish, reflecting its off-road prowess.
Interior Features
Inside, the Sierra 2500HD AT4 combines comfort with utility:
Front bucket seats with center console: Provide ample support and storage options.
Ventilated front seats: Enhance comfort during long drives.
Heated rear outboard seats: Ensure all passengers stay warm during colder months.
Advanced infotainment system: Features a user-friendly interface with smartphone integration, navigation, and more.
Premium materials: Elevate the cabin's ambiance, making every journey enjoyable.
Off-Road Capability
The AT4 trim is specifically designed for off-road enthusiasts:
Off-road suspension tuning: Optimizes the truck's performance on rugged terrains.
Hill descent control: Assists in maintaining a controlled speed on steep declines.
Trailering hitch with Hitch Guidance system: Simplifies the towing process, ensuring precise and safe connections.
These features make the Sierra 2500HD AT4 a formidable companion for off-road adventures.
Safety & Technology
The 2024 Sierra 2500HD AT4 is equipped with advanced safety and technology features:
Forward collision mitigation: Warns of potential collisions and can apply brakes in certain scenarios.
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Lane departure warning: Alerts if the vehicle drifts out of its lane without signaling.
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Surround-view camera system: Provides a top-down view of the truck and its surroundings, aiding in tight parking situations.
Parking sensors: Alert to obstacles that may not be visible in front of or behind the vehicle when parking.
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These technologies
Certified Pre Owned 2024 GMCSierra 2500HD AT4for Sale in Burnham, PA
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 6,553 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Transmission
- Automatic
- Engine
- 8
- VIN
- 1GT49PE74RF106922
- Stock Number
- Q1470A
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Power moonroof
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
- Front dual zone A/C
Included Packages & Accessories
Detailed Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: manual
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob and smart device (subscription required)
- Remote keyless entry
- Speed control
- Surround View Monitor: HD Surround Vision w/Hitch View yes
- Telescoping steering wheel
- Tilt steering wheel
- Transparent trailer view
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 13.4"
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Wireless Phone Charger: front
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Engine displacement: 6.6 L
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,027mm (79.8")
- Exterior length: 6,369mm (250.8")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: Trailer Side Blind Zone Alert warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Heads up display
- Lane departure: Lane Departure Warning warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: UltraSonic front and rear
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Forward Collision Alert with Automatic Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross-Traffic Alert warning
- Security system
- Traction control
Dealer Notes
KBB.com Consumer Reviews
- 2.0
Transmission trash
By Jason on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk - 5.0
Fantastic truck
By Jjj on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck! - 3.0
Don't judge a truck by the appearance
By jmil on Wednesday, May 11, 2022
Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).
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**The arrival timeline is an estimate. It may vary due to circumstances beyond Subaru’s or the retailer’s control.
