Four wheel drive
Steering, Electric Power Steering (EPS) assist, rack-and-pinion
Rear axle, 3.23 ratio
Brake lining wear indicator
Cooling, external engine oil cooler (Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
Cooling, auxiliary external transmission oil cooler (Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
Exhaust, aluminized stainless-steel muffler and tailpipe
Hill Descent Control (Requires 4WD model.)
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Cargo tie downs (12), fixed, rated at 500 lbs per corner
Differential, heavy-duty locking rear
Pickup bed
Suspension, Adaptive Ride Control
Frame, fully-boxed, hydroformed front section
Capless Fuel Fill
Trailer brake controller, integrated
Recovery hooks, chrome
Alternator, 170 amps (Included and only available with (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine. Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
Battery, heavy-duty 730 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (L84) 5.3L EcoTec3 V8 engine, (L3B) 2.7L Turbo engine and (L87) 6.2L EcoTec3 V8 engine.)
Exhaust, dual with premium tips
GVWR, 7100 lbs. (3221 kg) (Requires Crew Cab 4WD model with (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine.)
Air filter, high-capacity
Automatic Stop/Start