2024 GMC Sierra 2500 HD LaGrange
The Sierra HD is GMC’s most capable gas-powered truck. It boasts more performance capabilities than the Canyon or Sierra 1500.
The 2024 GMC Sierra 2500 HD receives cool updates that improve its exterior and interior design to match the Yukon and Yukon XL SUVs. The truck also gets more tech and a unique offroad AT4X trim.
The truck is available in regular, double, and crew cab configurations, all with the option of long or standard beds.
Learn more about the trims of the all-new 2024 GMC Sierra 2500 HD truck. Find out about its exterior, interior, performance, and towing capacity.
2024 GMC Sierra 2500 HD Trims
- Pro
- SLE
- SLT
- AT4
- AT4X
- Denali
- Denali Ultimate
2024 GMC Sierra 2500 HD Pro, SLE, and SLT
Pro, SLE, and SLT are the base trims of the 2024 GMC Sierra 2500 HD truck. They share most features with few variations. Here are the common attributes across the three trims.
- 6.6L V8 gas engine
- 401 Horsepower with 464 lb-ft of torque
- Allison 10-speed automatic transmission
- 2WD, 4WD
- 17-inch wheels on Pro and SLE, 18-inch machined aluminum wheels on SLT
- Automatic locking rear differential
- External engine oil cooler
- Heavy-duty air filter
- Roll-formed high-strength pickup bed
- GVWR of 10,150 lbs
- Black vertical recovery hooks
- 4-wheel anti-lock disc brakes
- Brake pad wear indicator
- Capless fuel fill
The 2024 GMC Sierra 2500 HD Pro has an MSRP of $45,400.
The 2024 GMC Sierra 2500 HD SLE has an MSRP of $50,200.
The 2024 GMC Sierra 2500 HD SLT has an MSRP of $59,700.
2024 GMC Sierra 2500 HD AT4 and AT4X
The 2024 GMC Sierra 2500 HD AT4 and AT4X are the off-road oriented trims. They have additional features over the base trims, like off-road suspension, hill descent control, and skid plates. The 2024 GMC Sierra 2500 HD AT4X has an MSRP of $84,795, while the 2024 GMC Sierra 2500 HD AT4 has an MSRP of 72,095.
Off-road enthusiasts can enjoy the first-ever Sierra HD AEV edition with the AT4X trim. It has more all-terrain features to handle tougher terrain, like increased ground clearance and more break-over angle.
Other features common across these two trims include:
- 6.6L V8 gas engine
- 401 Horsepower with 464 lb-ft of torque
- Allison 10-speed automatic transmission
- 4WD
- 20-inch high gloss black aluminum wheels on AT4 and 18-inch machined aluminum wheels on AT4X
- Off-road suspension
- Automatic locking rear differential
- External engine oil cooler
- Heavy-duty air filter
- Roll-formed high-strength pickup bed
- GVWR of 10,850 lbs
- Red vertical recovery hooks
- Integrated trailer brake controller
- 4-wheel anti-lock disc brakes
- Brake pad wear indicator
- Capless fuel fill
2024 GMC Sierra 2500 HD Denali and Denali Ultimate
With an MSRP of $76,195 for the 2024 GMC Sierra 2500 Denali, and an MSRP of $94,895 for the 2024 GMC Sierra 2500 HD Denali Ultimate, they are the top trims. They have the raw power to be heavy-duty trailering trucks while still providing premium features and technology in their interior.
Cool features include heated driver and front outboard passenger seats. Other features include:
- 6.6L V8 gas engine in Denali and 6.6L Duramax turbo diesel V8 engine in Denali Ultimate
- 401 Horsepower with 464 lb-ft of torque (Denali) 470 Horsepower with 975 lb-ft of torque (Denali Ultimate)
- Allison 10-speed automatic transmission
- 4WD
- 20-inch bright machined aluminum wheels
- Off-road suspension
- Automatic locking rear differential
- External engine oil cooler
- Heavy-duty air filter
- Roll-formed high-strength pickup bed
- 10,850 lbs GVWR in Denali and 10,000 lbs GVWR in Ultimate Denali
- Chrome vertical recovery hooks
- Integrated trailer brake controller
- Diesel exhaust brake
- 4-wheel anti-lock disc brakes
- Brake pad wear indicator
- Capless fuel fill
2024 GMC Sierra 2500 HD Exterior
The truck’s bold exterior distinguishes it from the 2023 Sierra 2500. It has an all-new grille design, bumper, and headlights. The truck is also relatively large, measuring 236.6 inches for the regular cab, 241.22 inches for the double cab, and 250.75 inches for the crew cab.
The Pro, SLE, and SLT have chrome front and rear bumpers, while AT4, Denali AT4X, and Ultimate Denali have body-color bumpers. Beltline moldings are black on Pro, AT4, and AT4X trims and chrome in SLE, SLT, Denali, and Denali Ultimate.
Common exterior features on the truck include:
- 12 fixed cargo tie-downs rated at 500 lbs per corner.
- LED fog lamps
- Cab-mounted lamps for the cargo area
- Capless fuel fill
- Animated LED projector headlamps with LED turn signals and daytime running lamps
2024 GMC Sierra 2500 HD Interior
The interior of the 2024 Sierra 2500 HD is rugged and refined at the same time. General Motors intends to make the cabin experience premium in this truck.
2024 GMC Sierra 2500 HD Interior Color Options
Interior color options for the Pro trim are Jet Black in vinyl or cloth.
Interior color options for 2024 GMC Sierra 2500 HD SLE are Jet Black and Dark Walnut/Slate in cloth. The color options are the same for the 2024 GMC Sierra 2500 HD SLT, but instead of cloth it is perforated leather.
For the AT4 trim, the interior comes in Jet Black with Kalahari accents (similar to a leather brown) in perforated leather.
The 2024 GMC Sierra 2500 HD AT4X comes in Obsidian Rush in full grain leather giving it a classic and clean look and feel.
The Denali trim comes in Jet Black forge perforated leather or Atmosphere/Brownstone forge perforated leather. The 2024 GMC Sierra 2500 HD Denali Ultimate comes in one color- Alpine Umber in full grain leather.
2024 GMC Sierra 2500 HD Interior Features
Apart from the Pro trim with a small 7-inch infotainment display, the other trims get a massive 13.4-inch screen. It includes Bluetooth, Apple CarPlay, and Android Auto. The driver information center is 3.5 inches on the Pro trim and 12.3 inches on the other trims.
The vehicle includes a 40/20/40 split-bench front seat, allowing seating up to 3. Also in the front, the center seat backrest can also double as an armrest with a storage compartment.
Other interior features in the 2024 GMC Sierra 2500 HD include:
- USB ports
- 12-volt auxiliary front power outlet
- 120-volt power outlet on SLT, AT4, Denali, AT4X and Denali Ultimate
- Single-zone climate control on Pro and SLE, dual-zone automatic climate control on SLT, AT4, Denali, AT4X, and Denali Ultimate
- Heated driver and front outboard passenger seats on SLT, AT4, Denali, AT4X, and Denali Ultimate
- Ventilated driver and front passenger seats on AT4, Denali, AT4X, and Denali Ultimate
- Premium Bose surround system on AT4, Denali, AT4X and Denali Ultimate
- Head-up display on AT4X and Denali Ultimate
- Heated steering wheel on SLT, AT4, Denali, AT4X and Denali Ultimate
- 10-way power driver and front passenger seat on SLT
- Premium front and rear floor liners
2024 GMC Sierra 2500 HD Wheels and Suspension
The 2024 GMC Sierra 2500 HD has the following wheel sizes across its trims:
- 17-inch wheels on Pro and SLE
- 18-inch machined aluminum wheels on SLT
- 20-inch high gloss black aluminum wheels on AT4
- 18-inch machined aluminum wheels on AT4X
- 20-inch bright machined aluminum wheels on Denali and Ultimate Denali
The truck has a spare tire carrier lock that helps to secure the extra wheel.
The 2024 GMC Sierra 2500 HD AT4 has off-road suspension, while 2024 GMC Sierra 2500 HD AT4X gets multimatic DSSV dampers. They are key in providing premium control and ride comfort while cruising. They are also capable of delivering a robust performance for those outdoor adventures.
2024 GMC Sierra 2500 HD Cargo Space
The payload depends on the configuration and trim of the truck. The base payload of the 2024 GMC Sierra 2500 HD for a crew cab is:
- 2WD (standard bed) – 3426 lb
- 4WD (standard bed) – 3407 lb
Not much information is available for the rest of the configurations, but the crew cab payload gives a good idea what the others could be.
Apart from the Pro trim, all trims feature a tailgate with an EZ lift assist, power lock, and release. A hitch area lighting is also standard.
2024 GMC Sierra 2500 HD Color Options
The exterior color of the 2024 GMC Sierra 2500 HD will vary depending on the trim. The options are:
- Summit White
- Onyx Black
- Sterling Metallic
- Cardinal Red (Pro, SLE, SLT)
- Downpour Metallic (Pro, SLE, SLT, Denali, Denali Ultimate)
- Thunderstorm Gray (Pro, SLE, SLT, AT4, AT4X)
- Titanium Rush Metallic (SLE, AT4, AT4X, Denali, Denali Ultimate)
- White Frost Tricoat (Denali and Denali Ultimate)
- Redwood Metallic (SLE and Denali Ultimate)
- Volcanic Red Tintcoat (SLE, AT4, AT4X, Denali)
Performance Specs of the 2024 GMC Sierra 2500 HD
GMC makes the all-new 2024 GMC Sierra 2500 HD a heavy-duty truck capable of hauling cargo and trailering long loads that the GMC Sierra 1500 can’t handle. Here are the performance specifications of the heavy-duty truck:
2024 GMC Sierra 2500 HD Engine and Fuel Economy
Most 2024 GMC Sierra 2500 HD trims have a 6.6L V8 Gas engine as standard. It churns out 401 horsepower and 464 lb-ft of torque. However, only the all-new 2024 GMC Sierra 2500 HD Denali Ultimate trim has a 6.6L Duramax turbo diesel engine as standard. It puts out 470 horsepower with 975 lb-ft of torque.
Like most heavy-duty trucks, the GMC Sierra 2500 HD guzzles gas and diesel from its 36-gallon fuel tank. The 2024 GMC Sierra 2500 HD 2WD achieves 16 mpg in the city and 21 mpg on the highway. The 2024 GMC Sierra 2500HD 4WD does 15 mpg in the city and 19 mpg on the highway.
2024 GMC Sierra 2500 HD Gearbox
The 2024 GMC Sierra 2500 HD has an Allison 10-speed automatic transmission. GM electronically tunes the gearbox for smooth shifting and increased performance.
The transmission also features a tow mode to reduce gear cycling, reducing instances of overheating when hauling huge loads. This mode also enhances better control of your truck during such heavy hauls.
The transmission also uses an auto-grade braking system to slow the vehicle down in tow mode. It enables engine braking when going downhill to reduce strain on the vehicle’s brakes.
2024 GMC Sierra 2500 HD Towing Capacity
The 2024 GMC Sierra 2500 has the best towing in its class. A crew cab can tow up to 22,070 lbs of cargo. GMC achieves this by pairing the 6.6L V8 with a 10-speed automatic transmission to get the engine closer to its peak performance.
The truck also offers the most trailering assistance in its class with plenty of driver-convenient technologies. These features include:
- Tow/Haul mode
- Trailer side blind zone alert
- Trailer sway control
- Trailer brake control
- Trailer length indicator
- Up to 14 available camera views, including a transparent trailer view
- Adaptive cruise control with trailering
- Available my GMC mobile app with trailering
2024 GMC Sierra 2500 HD Additional Features
GMC is keen on providing a secure vehicle that allows drivers and passengers to use the heavy-duty truck in the safest way. Here are safety and driver assistance features on the 2024 GMC Sierra 2500 HD:
- Front pedestrian braking
- Automatic emergency braking
- Forward collision alert
- Following distance indicator
- Lane departure warning
- Stabilitrak traction control system
- LED daytime running lamps
- Frontal, seat-mounted, head curtain airbags
- HD rear vision camera
- Hitch guidance system while reversing
- Buckle to drive
- Teen driver system
- Tire pressure and tire fill alert
- Three years of OnStar remote access
Compare to 2023 GMC Vehicles
When you’re car shopping, it’s always good to look around and do some comparisons. Here is a list of 2023 GMC models to consider:
2023 GMC Yukon, Yukon XL, and Yukon Denali
2023 GMC Yukon Denali and XL Denali
If you want to stick with 2024 GMCs, check out the 2024 GMC Sierra 1500 and the 2024 GMC Terrain.
Compare 2024 GMC Sierra 2500 HD to 2024 Chevy Vehicles
2024 Chevy Silverado HD ZR2 Bison
FAQs
When Can I Order a 2024 GMC Sierra 2500 HD?
The 2024 GMC Sierra 2500 HD became available for order beginning in the Spring of 2023 around March. The 2024 GMC Sierra 2500 HD AT4X trim comes later in the last quarter of 2023.
What are Some Updates for the 2024 GMC Sierra 2500 HD?
The 2024 GMC Sierra 2500 HD has new LED projector headlamps with an animated sequence. The vehicle also gets a revamped front bumper and a redesigned chrome grille for the Denali.
Where are 2024 GMC Sierra 2500 HD Trucks Made?
GMC makes the 2024 GMC Sierra 2500 HD trucks in its Fort Wayne assembly plant in Roanoke, Indiana. General Motors also makes the Sierra 3500 HD and 2024 GMC Sierra 1500 here.