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:
Vehicle Storage
Tires age when stored normally mounted on a parked vehicle. Park a vehicle that
will be stored for at least a month in a cool, dry, clean area away from direct
sunlight to slow aging. This area sh ...
Manual Operation of Power Liftgate
To change the liftgate to manual operation, turn the mode switch to the OFF
position.
With the power liftgate disabled and all of the doors unlocked, the liftgate
can be manually opened and close ...
OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect
to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic
Services.
The OnStar system s ...