GMC Sierra | Technical paper

Engine

L6 DOHC 3.0L Turbocharged Diesel
Power: 305 horses at 3750 rpm
Torque: 496 lb-ft at 1500 rpm

The 6.2L ACC V8 is naturally aspirated
Power: 420 horses at 5600 rpm
Torque: 460 lb-ft at 4100 rpm

Demonstrations

Weight: 2472 kg to 2481 kg
Maximum towing capacity: 5987 kg
Ground clearance: 205 mm

gearbox

Standard: 10-speed automatic
Optional: no
Drive Mode: 4×4

Tires

275/50R22

Tank capacity and recommended fuel

91 liters Conventional/diesel (3 liters)

Measurements

Wheel base: 3745 mm
Height: 5891 mm
height: 1918 mm
Width: 2063 mm (excluding exterior mirrors)

Crew Cab configuration with 5-foot 8-inch bed
Displayed variant: AT4

A temporary outage

GMC is delaying the all-electric version of the Sierra EV for a year. Chevrolet is doing the same with the Silverado EST. Production of the two vehicles was to begin next year at the Orion plant in Michigan. This must be reworked (currently combining Bolt and Bolt EUV) at a cost of US$1.5 billion. General Motors assures that the strike called by the United Auto Workers (UAW) is not related to this decision. The American manufacturer, however, mentions the need to slow down its transition to all-electricity in order to better anticipate costs and demand.

Full range

It’s with its foot on the floor that GMC is changing its Sierra lineup. GMC is overhauling its entire lineup with a sprinkle here and there of new versions of the AT4, AT4X and Denali Ultimate for its 2500 and 3500 HD (Heavy Duty) series. The 1500 series, on the other hand, is enriched with the AT4X AEV version. This, like the Denali Ultimate (our test bench), offers a choice between a six-cylinder turbodiesel or a 6.2-litre petrol V8. Note that the AT4 is aimed primarily at off-road enthusiasts.