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:
Antilock Brake System (ABS) Warning Light
The Antilock Brake System (ABS) light comes on briefly when the engine is started.
If the light does not come on, have the vehicle serviced by your dealer.
If the ABS light comes on and stays on w ...
Services for People with
Disabilities
Advisors provide services to help
subscribers with physical disabilities
and medical conditions.
Push for help with:
• Locating a gas station with an
attendant to pump gas.
• Finding a h ...
Power Flow Gauge (eAssist Only)
This display shows the operating
mode of the eAssist system and the
high voltage battery charge level.
The animation indicates the
direction of energy flow. ...