See also:

Short Take: Cadillac CTS Sport Wagon
When the national dalliance with SUVs seemed to put the entire country in a knobby-tired trance, we muttered to ourselves: Why would anyone want to ruin a perfectly good wagon by giving it a high ...

BATTERY SAVER ACTIVE
This message displays when the system detects that the battery voltage is dropping below expected levels. The battery saver system starts reducing certain features of the vehicle that may be ...

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 the v ...