See also:

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 ...

Memory Features
On vehicles with the memory feature, the controls on the driver door are used to program and recall memory settings for the driver seat and outside mirrors. ...

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. ...