See also:

Flash-to-Pass
Use your high-beam headlamps to signal to a driver in front that you want to pass. It works even if the headlamps are in the automatic position. To use it, pull the turn signal lever toward you, th ...

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar system s ...

Storing an XM Station as a Favorite
Drivers are encouraged to set up their radio station favorites while the vehicle is stopped. Tune to favorite stations using the presets, favorites button, and steering wheel controls, if th ...