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, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationFront Suspension Description and Operation
The front suspension has 2 primary purposes:
Isolate the driver from irregularities in the road surface.
Define the ride and handling characteristics of the vehicle.
The front suspension absorbs the impact of the tires travelling over
irregular road surfaces and dissipates this energy thr ...
Instrument Panel Wiring Harness Replacement
Removal Procedure
Remove instrument panel compartment assembly. Refer to Instrument
Panel Compartment Replacement.
Remove instrument panel wiring harness (2) from instrument panel tie bar
(1).
Disconnect electrical connectors.
Installation Procedure
Ins ...
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
• Check the engine oil level.
Once a Month
• Check the tire inflation pressures.
• Inspect the tires for wear.
• Check the windshield washer fluid level.
Engine Oil Change
When the CHANGE ENGINE OIL SOON DIC message or Code 82 DIC message dis ...