OnStar

See also:

Road Sensing Suspension
The Road Sensing Suspension (RSS) feature provides superior vehicle ride and handling under a variety of passenger and loading conditions. The system is fully automatic and uses a computer controll ...

Hitch Cover (without Dual Exhaust)
The vehicle may have a hitch cover. To remove the hitch cover: 1. Turn the fasteners on the lower tabs 90 degrees counterclockwise. 2. Lift the lower edge of the cover about 45 degrees. 3. Pull t ...

Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A The following info ...