The 2012 Sierra 1500 lineup includes everything from the job-ready Work Truck models to the Sierra Denali.
- Vortec powertrains backed by fuel-saving six-speed automatic transmissions
- Work Truck, SL, SLE and SLT trim packages in 2WD and 4WD
- Regular, extended and crew cab models
- Cruise control now standard on Work Truck models
- Z85 handling/trailering suspension included on Work Truck models with the trailering package
- StabiliTrak stability control system includes electronic trailer sway control and hill start assist