OnStar Services

See also:

Customer Satisfaction Procedure (Mexico)
Did you get the Warranty Extension Plan? This plan is recommended by General Motors to supplement the warranty included with the new vehicle purchase. See your dealer for details. Customer Assis ...

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 ...

Driving On Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get h ...