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
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Highway Hypnosis
Always be alert and pay attention to your surroundings while driving. If you
become tired or sleepy, find a safe place to park the vehicle and rest.
Other driving tips include:
Keep the vehicle ...
Automatic Level Control
The automatic level control rear suspension comes as a part of the Road Sensing
Suspension. See Road Sensing Suspension .
This type of level control is fully automatic and will provide a bett ...
Antilock Brake System (ABS)
This vehicle has the Antilock Brake System (ABS), an advanced electronic
braking system that helps prevent a braking skid.
When the engine is started and the vehicle begins to drive away, ABS chec ...