See also:

OnStar Mobile App
With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there ...

What to Add
When you do need brake fluid, use only DOT-3 brake fluid. Use new brake fluid from a sealed container only. Always clean the brake fluid reservoir cap and the area around the cap before removing i ...

Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 ...