See also:

Battery Power Protection
This feature helps prevent the battery from being drained, if the interior courtesy lamps or reading lamps are accidentally left on. If any of these lamps are left on, they automatically turn off aft ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment on page 9‑64. Added electrical equipment ...

Automatic Transmission
The automatic transmission shift lever is located on the console between the seats. P (Park): This position locks the front wheels. Use P (Park) when starting the engine because the vehicle can ...