The all-new redesigned 2020 GMC Sierra 3500 HD delivers a bold looking exterior with very capable payload and towing values. The GMC Sierra is offered in both 4x2 and 4x4 models with either a single rear wheel (SRW) or a dual rear wheel (DRW) configuration as well as a wide array of trims and class exclusive features and options. The 2020 GMC Sierra 3500 HD truck comes with an 8-foot box and a 6.75-foot is offered on the SRW crew cabs. Five distinct trims are available and they include the Base, SLE, SLT, the new AT4 and Denali. The standard engine is a 401 horsepower and 464 lb-ft of torque 6.6-liter gasoline V8, paired with a six-speed automatic transmission. An optional Duramax 6.6-liter with 445 horsepower and 910 lb-ft of torque is mated with a Allison 10-speed automatic transmission. Sierra HD trucks all receive a standard automatic locking rear differential, a bedside step, StabiliTrak with Proactive Roll Avoidance, an independent short and long arm front suspension and a trailering package that includes a hitch, 7 and 4-pin connectors and Hitch Guidance for facilitating reversing to hitch up a trailer. All Sierra model interiors come standard with six airbags, air conditioning, Bluetooth connectivity and the GMC infotainment system which allows convenient connectivity and voice recognition, several ports to support multiple devices and a 7 or 8-inch color touchscreen. The Base trim includes manually extendable trailer tow mirrors, chrome front and rear bumpers, LED low and high beam headlamps, 18-inch steel wheels with all-terrain tires and a rear camera. The SLE trim adds to the Base with power and heated exterior door mirrors with turn signals, machined aluminum wheels, illuminated driver and passenger visor mirrors, cloth seat trim, cruise control, GMC 4G LTE mobile hotspot, power door locks with remote keyless entry, leather steering wheel, Teen Driver restricted driving mode, a trailer brake controller and deep tinted windows. The SLT trim expands on the SLE standard equipment with the AutoTrac push button two-speed electronic transfer case on 4x4 models. The SLT also offers chrome, power extending exterior mirrors with auto dimming functionality and LED spot lights, LED fog lights and LED pickup box lights. The SLT continues to expand on the SLE standard equipment by offering the class-exclusive GMC MultiPro Tailgate, heated driver and passenger power leather front seats with driver side memory, front and rear under-seat storage, SiriusXM HD satellite audio, Keyless Open/Keyless Start, a heated, telescoping steering wheel, the GMC ProGrade Trailering System and a rear window defogger. The new AT4 trim compliments the Sierra lineup with a unique off-road capable 4x4 truck that utilizes dark chrome exterior features with a bold grille and striking red tow hooks. The interior continues the distinctive trend with dark-tinted finishes on the steering wheel, center stack and sill plates with AT4 exclusive leather bucket seats and floor liners. The true nature of the AT4 is evident with its off-road prowess that incorporates an off-road suspension using Rancho shocks, skid plates, hill descent control …
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|MPG||City / Hwy|
|Transmission||6-spd auto w/OD|
|Power||401 @ 5200 rpm|
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