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Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if ...

How to Check
Use a good quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning the ...

Eight Way Power Seats
To adjust a power seat, if equipped: ○ Move the seat forward or rearward by sliding the control forward or rearward. ○ Raise or lower the front or rear part of the seat cushion by movi ...