Vehicle Security
This vehicle has theft-deterrent features; however, they do not make it impossible to steal.
See also:
Rear Window Defogger
REAR (Rear Defogger): Press to turn
the rear window defogger on or off. The rear window defogger turns off after about
10 minutes. It can also be turned off by turning the ignition to ACC/ACCESSO ...
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 ...
Automatic Operation
AUTO (Automatic): When automatic operation is active, the system controls the inside temperature, the air delivery, and the fan speed.
Use the steps below to place the entire system in automatic mode ...