See also:

Exterior
There's hybrid badging on the cab's rear window, ahead of the side mirrors and on the tailgate, but otherwise the hybrid version looks similar to the gas-powered version. ...

Engine Oil
For diesel engine vehicles, see “Engine Oil” in the Duramax Diesel Supplement. To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these si ...

Battery
If the vehicle is a Hybrid, see the Hybrid Supplement for more information. This vehicle has a maintenance free battery (or batteries). Refer to the replacement number on the original battery label w ...