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 InformationHigh/Low-Beam Headlamp
Connector Retaining Tab
Connector Release
Headlamp Bulb
To replace a headlamp bulb:
Open the hood. See Hood on page 10-5.
Remove the connector retaining tab (1).
Disconnect the wiring harness connector from the bulb (3) by pressing the
connector release (2) and pulling strai ...
Interior Glass
To clean, use a terry cloth fabric dampened with water. Wipe droplets left behind
with a clean dry cloth.
Commercial glass cleaners may be used, if necessary, after cleaning the interior
glass with plain water.
Caution
To prevent scratching, never use abrasive cleaners on automotive
glass. ...
Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has one,
be inspected for signs of wear or damage at least once a month.
Replace the tire if:
The indicators at three or more places around the tire can be seen.
There is cord or fabric showing through the tire's rubb ...