See also:

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Driver Information Center (DIC)
The Driver Information Center (DIC) provides status of many vehicle systems. The DIC displays warning/ status messages. The DIC display is at the bottom of the instrument panel cluster. The ...

When to Check Lubricant
It is not necessary to regularly check rear axle fluid unless there is a leak suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have it inspected and repaired. All ax ...