See also:

How OnStar Service Works
: This blue button connects you to a specially trained OnStar advisor to verify your account information and to answer questions. : Push this red emergency button to get priority help fro ...

Anti-Lock Brake SystemWarning Light
With the Anti-Lock Brake System (ABS), this light will come on when you start your engine and may stay on for several seconds, that is normal. A chime may also sound when the light comes on ...

Battery Power Protection
The battery saver feature is designed to protect the vehicle's battery. To prevent battery discharge while driving, the following systems are reduced automatically in two stages and then turned off: ...