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 InformationEngine Oil Pressure Light
Caution
Lack of proper engine oil maintenance can damage the engine. Driving
with the engine oil low can also damage the engine. The repairs would not be covered
by the vehicle warranty.
Check the oil level as soon as possible. Add oil if required, but if the oil
level is within the operatin ...
Emergency
With Automatic Crash Response, the OnStar system can automatically connect to
an OnStar Emergency Advisor. The built-in system can automatically connect to help
in certain crashes.
Press to connect to an OnStar Emergency
Advisor. GPS technology is used to identify the vehicle location and ca ...
Auxiliary Devices
Using the Auxiliary Input Jack
Settings menus and functions may vary depending on vehicle options.
If equipped, the auxiliary input jack in the center stack can be used to connect
external audio devices such as an iPod®, iPhone®, MP3 player, CD player, and other
supported devices for use as an ...