See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

CD/DVD Player
The CD/DVD player can play CDs, DVD—As, MP3/WMA CDs, MP3/WMA DVDs, and DVD—Vs. The CD/DVD player will not play 8 cm(3 in) discs. Care of CDs and DVDs Sound quality can be reduced due to disc ...

Keyless Locking
If the vehicle has the keyless access system, this feature allows you to select whether the doors automatically lock during normal vehicle exit. When the ignition is turned off and all doors ...