Suburban Powertrain
- 10-speed automatic transmission with steering column-mounted electronic precision shift
- standard rear-wheel drive (RWD), available four-wheel drive (4WD)
- standard 5.3-liter EcoTec V8 engine (output: 355 horsepower & 383 lb.-ft. of torque)
- RWD EPA-estimated fuel economy: 15 mpg city/20 mpg highway
- 4WD EPA-estimated fuel economy: 14 mpg city/19 mpg highway
- available 6.2-liter EcoTec V8 engine (output: 420 hp & 460 lb.-ft. of torque)
- RWD EPA-estimated fuel economy: 15 mpg city/19 mpg highway
- 4WD EPA-estimated fuel economy: 14 mpg city/18 mpg highway
- available 3.0-liter Duramax Turbo Diesel engine (output: 305 hp & 495 lb.-ft. of torque)
- RWD EPA-estimated fuel economy: 21 mpg city/26 mpg highway
- 4WD EPA-estimated fuel economy: 20 mpg city/24 mpg highway
- standard mechanical limited-slip rear differential, electronic limited-slip differential
- available Autotrac one- or two-speed transfer case (4WD only)
- coil-over front shocks with stabilizer bar and multi-link rear suspension with coil springs
- available adaptive air ride suspension (4WD only) and magnetic ride control suspension
- external engine oil cooler and auxiliary transmission oil cooler
- maximum towing capacity: up to 8,300 pounds (RWD with 5.3-liter V8 and Max Trailering Package; other configurations have lower limits)