See also:

When the System Does Not Seem To Work Properly
The RVC system might not work properly or display a clear image if: The RVC is turned off. See “Turning the RVC System On or Off” earlier in this section. It is dark. The sun or the beam of ...

When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, an ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...