Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody.
Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop.
See also:
Engine Oil Life System
The engine oil life system calculates engine oil life based on vehicle use and
displays a DIC message when it is necessary to change the engine oil and filter.
The oil life system should be reset ...
Full-Size Spare Tire
If this vehicle came with a full-size spare tire, it was fully inflated when
new, however, it can lose air over time. Check the inflation pressure regularly.
See Tire Pressure and Vehi ...
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 ...