What's New
The 2024 GMC Sierra 3500HD receives a mid-generation update with a moderately redesigned front end and a significantly updated interior design on most trims that also incorporates technological upgrades. The gas engine now utilizes the diesel’s 10-speed transmission and the diesel engine receives numerous updates for more power, especially at the low end of the RPM range. A new Denali Ultimate trim is introduced to compete for those interested in a near-$100,000 truck. An off-road-minded AT4X that will debut later in 2023.
Choosing Your GMC Sierra 3500HD
The 2024 GMC Sierra is offered in six trims, the Pro, SLE, SLT, AT4, Denali, and Denali Ultimate with base prices that range from $47,495 to $97,195.
Engine Choices
The 2024 Sierra 3500HD is available with a gasoline or diesel engine.
The gas 6.6-liter V8 produces 401 horsepower and 464 pound-feet of torque and is now mated to the same 10-speed Allison-brand transmission. The updated 6.6-liter turbo-diesel V8 “Duramax” produces 470 horsepower and 975 pound-feet of torque at 1,600 RPM and remains mated to a 10-speed automatic transmission.
Rear-wheel drive is standard and an automatic (on upper trim levels) four-wheel drive system with a low range is offered for $2,800.
Due to the expected varying use of the heavy-duty pick-up truck, the EPA has not rated this vehicle.
Passenger and Cargo Capacity
The standard cab and the extended cab feature the long (8-foot) bed and are available with dual rear wheels. Their configurations are limited to the Pro and SLE trims. The crew cab is offered on all trims and brings the availability of the short (~6.75-foot). The AT4 is available with a single-rear wheel axle only.
The towing ratings vary and the greatest figure (36,000 pounds) comes from the less versatile configuration of a standard cab with the diesel, dual rear wheels, and rear-wheel drive. The popular crew cab long bed configuration is rated for 18,300 pounds with the gas engine and single rear wheels which jumps to 21,600 pounds with the diesel. Add dual rear wheels and select the diesel engine and the ratings to 31,200 pounds - enough for your fully loaded triple axle camper.
Safety Features
The 3500HD is equipped with core active safety tech such as a forward-distance indicator, automatic emergency braking with pedestrian detection, an HD rearview camera, and LED automatic headlights and high beams.
Several optional packages include the Pro Safety Plus Package ($1,305) which adds rear parking sensors, rear cross-traffic alert, and blind spot detection while adaptive cruise control requires the $1,415 Preferred Package, offered on the premium trims which also offers trailer apps and safety inspections.
The SLT can be equipped with the HD Pro Safety Plus Package for $1,395 which includes surround view cameras, trailer blind-spot detection, a bed view camera, and front parking sensors.
Connectivity
An eight-inch touchscreen display is standard on the Pro trim and features Apple CarPlay and Android Auto connectivity, a Wi-Fi hotspot, and two USB ports. The retail market-focused trims receive a landscape 13.4-inch touchscreen that additionally incorporates Google built-in and SiriusXM and offers additional power ports for the rear passengers.
2024 GMC Sierra 3500HD Pro - MSRP From $47,495
The Pro trim is equipped with 17-inch steel wheels, animated LED front lighting, the Trailering Package, an automatic locking rear differential, extendable heated mirrors with lower convex glass and integrated turn signals, a capless fuel filler (gas-model only), chrome front and rear bumpers, a locking tailgate, recovery hooks, brake pad wear indicators, and power windows and door locks. The Pro trim retains the interior design of last year’s model.
2024 GMC Sierra 3500HD SLE - MSRP From $52,295
The SLE trim is treated to an updated interior that integrates a 12.3-inch digital gauge cluster and a large landscape touchscreen, 17-inch alloy wheels, an integrated-step MultiPro tailgate with power locks and assisted lifting, and proximity entry. The SLE Convenience Package is offered for $1,140 and includes LED fog lights, a 120-volt power outlet in the bed and in the center console, a 10-way power driver’s seat, and dual-zone automatic climate control. The X31 Off-road Package ($325) is also available and adds off-road dampers, hill descent control, and skid plates.
2024 GMC Sierra 3500HD SLT - MSRP From $63,595
The SLT trim adds another layer of luxury with 18-inch alloy wheels, LED brake lights and cargo lights, remote engine start, additional trailering apps, a hitch view camera, a variable-ratio steering system, 10-way power front seats with perforated leather and memory position for the driver, and heated seats and steering wheel. The SLT Convenience Package is $1,525 and adds ventilated front seats, a power sliding rear window, wireless charging, and a Bose sound system.
2024 GMC Sierra 3500HD AT4 - MSRP From $72,195
The AT4 is four-wheel-drive only and is fitted with an off-road suspension, additional skid plates, red tow hooks, 20-inch wheels wrapped with all-terrain tires, high-gloss black mirror caps, body-color front and rear bumpers, black window moldings, hill descent assist, and the features of the SLT Convenience Package.
The interior wears unique leather seat inserts and trim material and pattern while the $1,275 Technology Package can make it feel more luxurious with a digital rearview camera mirror and a head-up display.
2024 GMC Sierra 3500HD Denali - MSRP From $76,295
The Denali features chrome exterior trim on the grille, lower front fascia, mirror caps, door handles, window trim, and side steps trim. A polished exhaust, 20-inch machined bright wheels, chrome vertical tow hooks, and smoked amber LED roof clearance lights are also included.
The interior is dressed with unique trim, etched stainless-steel speaker grilles, and contrast stitching, and a surround-view camera system is also incorporated. The Denali Illumination Package is $950 and features an illuminated grille emblem and puddle lamps and the Denali Reserve Package is offered for $2,270 and includes the features of the AT4’s Technology Package and adaptive cruise control.
2024 GMC Sierra 3500HD Denali Ultimate - MSRP From $97,195
The new top-level trim competes with the F-350’s Limited trim and is offered only with the diesel powertrain and four-wheel drive. It is distinguished by its dark chrome exterior trim, unique 20-inch wheels, power assist steps with LED lighting and chrome trim, the features of the Technology Package, full grain leather seats, and an upgraded sound system for the cab and even one integrated into the Multi-Pro tailgate.
Compare Sierra 3500HD Trims Side-By-Side
The SLT trim is a significant step up in price over the SLE but it features a level of luxury that seems fitting for the GMC brand. The optional safety equipment incorporates thoughtful trailer considerations for additional ease of mind when hauling precious cargo.