2022 GMC Sierra HD

The GMC Sierra 2500HD and 3500HD Heavy Duty models receive minor updates for the 2022 model year, which marks the third model year of the fourth-gen pickup truck.

2022 GMC Sierra HD Quick Facts
Assembly Location	GM Flint Assembly in Flint, MI, USA
Body Style(s)	Regular Cab, Double Cab, Crew Cab
Layout	Front-Engined, Longitudinal
Engine(s)	6.6L L8T V8, 6.6 L5P V8 Duramax (Diesel)
Transmission(s)	6-Speed Auto, Allison 10-Speed Auto
Drive Wheels	Rear-Wheel-Drive, Four-Wheel-Drive
Availability	U.S.A., Canada, Mexico
Predecessor	2021 GMC Sierra HD
Successor	2023 GMC Sierra HD

Changes, Updates, New Features

The 2022 Sierra HD sees minor model year changes for both the Sierra 2500HD and Sierra 3500HD, including:

Model Line:

Base Sierra trim renamed to Pro trim, retains 1SA RPO code designation

Exterior:

Deletion of two exterior colors
Addition of one new exterior color
Addition of 20-inch (50.8 cm) machined face aluminum with high gloss Black accents and beadlock appearance (SQ9)
- LPO-level item
Mirror code (DLF) changes to (DLN)

Interior:

Addition of Seat Belt Adjustable Guide Loops

See detailed 2022 GMC Sierra HD changes, updates and new features here: 2022 GMC Sierra HD change log.

The updates and changes described here are specific to the U.S. market and may differ for other markets.

Powertrain

The 2022 GMC Sierra HD is offered with the following engine and transmission choices:

Engine	Fuel	Aspiration	Transmission	Horsepower @ RPM	Torque @ RPM	Axle
6.6L L8T V8	Gasoline	Naturally Aspirated	6-Speed Automatic (MYD)	401 @ 5200	464 @ 4000	3.73
6.6L Duramax L5P V8	Diesel	Turbocharged	Allison 10-Speed Automatic (MGM, MGU)	445 @ 2800	910 @ 1600	3.42