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:
Reducing Speed While Using
Cruise Control
If the cruise control system is
already activated:
- Press and hold the −SET button
on the steering wheel until the
desired speed is reached, then
release it.
- To slow down in small a ...
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many parts have to be of top
quality and work well together if the vehicle is to have really good braking. The
vehicle was designed and tested with ...
Shutting the Engine Off After a Remote Start
To manually shut off the engine after
a remote start, do any of the
following:
- Press until the parking lamps
turn off.
- Turn on the hazard warning
flashers.
- Turn the ignition switch o ...