History/Overview
The GMC Sierra HD is the heavy-duty pickup for drivers who need more capacity and capability than the more common, light-duty 1500 can offer. This is the fourth model year for this current, fifth-generation version of the truck.
What’s New/Key Changes From Last Year
There are no changes to the Sierra HD range for 2023; we were expecting a significant refresh, but that has been put off until 2024.
Available Trims
The GMC Sierra HD comes in Pro, SLE, SLT, AT4, and Denali trims. You can get two- or four-wheel drive; and regular, Double Cab and Crew Cab configurations. While other Sierra HD models can be had with short or long cargo beds, the "CC" designation here standard for "chassis cab," which means you get the cab size of your choice with no cargo box so that you can have the truck upfitted to meet your specific needs.
The standard powertrain is a 6.6L gas V8 and a six-speed automatic transmission, the option being a 6.6L diesel/10-speed auto combination.
Standard Features
Sierra HD Pro gets a 7.0-inch touchscreen, smartphone integration, LED headlights, 17-inch wheels, bed steps, trailering side mirrors, cargo lights/tie-downs, and chrome bumpers. The seats and floors are finished in vinyl, and there’s a six-speaker stereo.
SLE trim brings a trailer brake controller, a MultiPro tailgate, leather-wrapped wheel, cruise control, keyless entry, and satellite radio.
SLT gains 18-inch wheels, LED bed lights and fog lamps, power folding/extending side mirrors, hitch guidance, trailering app, and an easy-lift tailgate. Inside, there are power-adjustable heated seats, a heated steering wheel, 8.0-inch infotainment screen, dual-zone A/C, and passive keyless entry.
AT4 gets all-terrain tires, an off-road suspension system, skid plates, perforated leather, red recovery hooks, and heated rear seats.
Finally, Denali adds interior trim in open-pore wood, aluminum and chrome, a Bose stereo, bed-view camera, front and rear parking sensors, lane change alert, forward collision mitigation, and rear cross traffic alert.
Key Options
A convenience package for Pro trim adds tinted glass, keyless entry, LED bed lights, and rear window defogger.
Driver alert I brings front/rear park assist, lane change/blind spot/rear cross traffic alerts, and perimeter lighting.
The safety confidence pack adds forward collision mitigation and cruise.
An SLE convenience bundle gets a power driver’s seat, passive keyless entry, heated front seats, and dual-zone A/C. The driver alert II pack bundles automatic high beams and lane departure warning. SLT premium gets a power sliding rear window, ventilated seats, surround view cameras, navigation, and Bose audio.
AT4 premium plus offers bed view and surround view cameras, and a sunroof. Denali gains power side steps, trailer TPMS, a camera-based rearview mirror, and a driver head-up display.
Finally, Ultimate brings surround vision, the digital rearview mirror, a head-up display, and a sunroof.
Fuel Economy
Natural Resources Canada does not require truck manufacturers to publish fuel consumption estimates for heavy-duty pickups.
Competition
The GMC Sierra 2500 HD’s competitors are the Chevrolet Silverado HD, Ford F-Series Super Duty models, and Ram’s 2500 and 3500 Heavy Duty models.
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