See also:

OnStar®
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. See OnStar Overv ...

Power Windows and OtherPower Options
Circuit breakers protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed ...

Special Application Services
Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi. Have underbody flushing service performed once a year. ...