OnStar
Keys and LocksImmobilizer Operation
This vehicle has a passive theft-deterrent system.
The system does not have to be manually armed or disarmed.
The vehicle is automatically immobilized when the key is removed from the ignition.
The system is automatically disarmed when the vehicle is started with the correct
key. The key uses a ...
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a combination
of fuses, circuit breakers, and fusible thermal links. This greatly reduces the
chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, ...
Park - Engine Running (Gen 2)
When the gear selector lever is in the Park (P) position, fluid is drawn into
the pump through the transmission fluid filter assembly. Line pressure is then directed
to the following valves:
Fluid Pressure Directed in Preparation for a Shift
Manual Valve
Mechanically controlled by ...