Electronic 10-Speed Automatic -inc: selectable drive modes: normal/tow-haul/snow-wet/EcoSelect/sport
Electronic 10-Speed Automatic -inc: tow/haul and sport mode and SelectShift w/progressive range select
Electronic 6-Speed Automatic -inc: selectable drive modes: normal/tow-haul/sport
Engine, 4.3L EcoTec3 V6 with Active Fuel Management, (285 hp [212 kW] @ 5300 rpm, 305 lb-ft of torque [413 Nm] @ 3900 rpm) (Requires (MYC) 6-speed automatic transmission.)
Transmission, 6-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Included and only available with (LV3) 4.3L EcoTec3 V6 engine or (L82) 5.3L EcoTec3 V8 engine.)
Transmission, 8-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Standard on 2WD models equipped with (L84) 5.3L EcoTec3 V8 engine. Available on 4WD models equipped with (L84) 5.3L EcoTec3 V8 engine. Included and only available with (L3B) 2.7L Turbo engine.)
Transmission, 8-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Standard on 2WD models equipped with (L84) 5.3L EcoTec3 V8 engine. Available on 4WD models equipped with (L84) 5.3L EcoTec3 V8 engine.)
Cooling, auxiliary external transmission oil cooler
Transmission, 10-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Available on models equipped with (L84) 5.3L EcoTec3 V8 engine. Included and only available with (L87) 6.2L EcoTec3 V8 engine or (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.)
Transmission, 10-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Available on 4WD models equipped with (L84) 5.3L EcoTec3 V8 engine. Included and only available with (L87) 6.2L EcoTec3 V8 engine or (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)