OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationMirror Adjustment
Exterior Mirrors
Manual Outside Mirrors
If equipped, move the control up, down, or side to side to adjust the mirror.
See Manual Mirrors on page 2-13.
Power Outside Mirrors
If equipped, move the selector switch to L (Left) or R (Right) to choose
the driver or passenger mirror.
M ...
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System (TPMS).
The TPMS is designed to warn the driver when a low tire pressure condition exists.
TPMS sensors are mounted onto each tire and wheel assembly, excluding the spare
tire and wheel assembly. The TPMS sensors monitor the air pressure in t ...
Using the Tire Sealant and Compressor Kit to Temporarily Seal and Inflate a
Punctured Tire
When using the tire sealant and compressor kit during cold temperatures, warm
the kit in a heated environment for five minutes.
This will help to inflate the tire faster.
If a tire goes flat, avoid further tire and wheel damage by driving slowly to
a level place. Turn on the hazard warning fla ...