OnStar

See also:

Tire Pressure Light
This light will come on briefly when you turn the ignition to RUN. This light will also come on when one or more of your tires are significantly underinflated. A CHECK TIRE PRESSURE DIC mes ...

How to Add Coolant to the CoolantRecovery Tank
If you have not found a problem yet, but the coolant level is not at the FULL COLD mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL® engine coolant at the coolant recovery tank. ...

Using the Directory Command
The directory command lists all of the name tags stored by the system. To use the directory command: 1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. ...