See also:

Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: ...

Parking (Manual Transmission)
Before getting out of the vehicle, place the shift lever in R (Reverse) and firmly apply the parking brake. For vehicles with the key access ignition, turn the ignition key to OFF/LOCK, and r ...

Other Navigation Services Available from OnStar
OnStar eNav: Allows subscribers to send destinations from Google Maps and MapQuest.com to their Turn-by-Turn Navigation or screen-based navigation system. When ready, the directions will be ...