OnStar Services

See also:

Sunroof
On vehicles with a sunroof, the switches used to operate it are on the headliner above the rearview mirror. The ignition must be in ON/ RUN or ACC/ACCESSORY, or in Retained Accessory Power (RAP) t ...

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

Seat Issues
As I say, I liked the look of the leather seats. Once I started driving, though, they offered no support in any direction; I felt like I was sitting on top of the seat rather than in it. While it' ...