The table below lists every trim of the 2012 GMC Sierra 1500 with the engine, drivetrain, axle ratio, horsepower, torque, GVWR, curb weight, and payload that go with that trim's headline tow rating. Manufacturers often publish more than one tow figure per truck — a conventional bumper-hitch rating, a weight-distributing rating, and a gooseneck or fifth-wheel rating — so the highest number here is the maximum across all hitch classes the source carries for the trim.

Per-trim breakdown

Configuration Engine HP Torque Axle Tow (lb) GVWR Curb Payload
Work Truck 4x2 Regular Cab 6.6 ft. box 119 in. WB 195 260 3.23 4,800 6,400 4,460 1,940
SLE 4x2 Regular Cab 6.6 ft. box 119 in. WB 302 305 3.23 4,700 6,400 4,460 1,940
SLE 4x2 Regular Cab 8 ft. box 133 in. WB 302 305 3.23 5,100 6,400 4,596 1,804
Work Truck 4x2 Regular Cab 8 ft. box 133 in. WB 195 260 3.23 4,700 6,400 4,596 1,804
SLE 4x2 Extended Cab 6.6 ft. box 143.5 in. WB 302 305 3.23 4,700 6,800 4,885 1,915
SLT 4x2 Extended Cab 6.6 ft. box 143.5 in. WB 315 335 3.08 6,900 6,800 4,885 1,915
Work Truck 4x2 Extended Cab 6.6 ft. box 143.5 in. WB 195 260 3.23 4,400 6,400 4,885 1,515
SL 4x2 Extended Cab 6.6 ft. box 143.5 in. WB 302 305 3.23 4,700 6,800 4,885 1,915
SLE 4x4 Regular Cab 6.6 ft. box 119 in. WB 302 305 3.42 6,000 6,400 4,686 1,714
Work Truck 4x4 Regular Cab 6.6 ft. box 119 in. WB 195 260 3.73 5,100 6,400 4,686 1,714
SLE 4x4 Regular Cab 8 ft. box 133 in. WB 302 305 3.42 5,800 6,800 4,851 1,949
Work Truck 4x4 Regular Cab 8 ft. box 133 in. WB 195 260 3.73 4,900 6,400 4,851 1,549
SLE 4x4 Extended Cab 6.6 ft. box 143.5 in. WB 302 305 3.42 5,500 7,000 5,274 1,726
SLT 4x4 Extended Cab 6.6 ft. box 143.5 in. WB 315 335 3.08 6,800 7,000 5,274 1,726
Work Truck 4x4 Extended Cab 6.6 ft. box 143.5 in. WB 302 305 3.42 5,500 7,000 5,274 1,726
SL 4x4 Extended Cab 6.6 ft. box 143.5 in. WB 302 305 3.42 5,500 7,000 5,274 1,726
SLE 4x2 Extended Cab 8 ft. box 157.5 in. WB 315 335 3.08 6,700 6,900 5,259 1,641
SLT 4x2 Extended Cab 8 ft. box 157.5 in. WB 315 335 3.08 6,700 6,900 5,259 1,641
Work Truck 4x2 Extended Cab 8 ft. box 157.5 in. WB 315 335 3.08 6,700 6,900 5,259 1,641
SLE1 4x4 Extended Cab 8 ft. box 157.5 in. WB 315 335 3.08 6,500 7,000 5,487 1,513
SLT 4x4 Extended Cab 8 ft. box 157.5 in. WB 315 335 3.08 6,500 7,000 5,487 1,513
Work Truck 4x4 Extended Cab 8 ft. box 157.5 in. WB 315 335 3.08 6,500 7,000 5,487 1,513
SLE 4x2 Crew Cab 5.75 ft. box 143.5 in. WB 302 305 3.23 4,700 6,800 5,099 1,701
SLT 4x2 Crew Cab 5.75 ft. box 143.5 in. WB 315 335 3.08 6,900 6,800 5,099 1,701
Work Truck 4x2 Crew Cab 5.75 ft. box 143.5 in. WB 302 305 3.23 4,700 6,800 5,099 1,701
Denali 4x2 Crew Cab 5.75 ft. box 143.5 in. WB 403 417 3.42 8,600 6,800 5,211 1,589
SL 4x2 Crew Cab 5.75 ft. box 143.5 in. WB 302 305 3.23 4,700 6,800 5,099 1,701
Xtra Fuel Economy 4x2 Crew Cab 5.75 ft. box 143.5 in. WB 315 335 3.08 7,000 6,700 5,099 1,601
SLE 4x4 Crew Cab 5.75 ft. box 143.5 in. WB 302 305 3.42 5,500 7,000 5,341 1,659
SLT 4x4 Crew Cab 5.75 ft. box 143.5 in. WB 315 335 3.08 6,700 7,000 5,341 1,659
Work Truck 4x4 Crew Cab 5.75 ft. box 143.5 in. WB 302 305 3.42 5,500 7,000 5,341 1,659
Denali 4x4 Crew Cab 5.75 ft. box 143.5 in. WB 403 417 3.42 9,300 7,000 5,377 1,623
SL 4x4 Crew Cab 5.75 ft. box 143.5 in. WB 302 305 3.42 5,500 7,000 5,341 1,659

How to interpret the headline tow figure

Tow ratings at this level are normally achievable with a conventional Class II or Class III receiver hitch. Always verify your vehicle has the manufacturer's tow package installed if you intend to tow at the upper end of the rating, and inspect the door-jamb sticker for the actual maximum permitted on your specific configuration.

How this year compares to 2011

The 2011 GMC Sierra 1500 carried a maximum tow rating of 9,500 lb. The 2012 model is rated 200 lb lower — sometimes a real spec change, sometimes a re-test under a stricter standard like SAE J2807. See the 2011 GMC Sierra 1500 page for the full per-trim breakdown of the prior year.

Other 2012 GMC models

The rest of GMC's 2012 lineup, ranked by maximum tow rating. Click through for the per-trim breakdown of any of these.

All figures sourced from manufacturer documentation. See our methodology for how the dataset is compiled. Always confirm against your vehicle's door-jamb sticker before towing.