OnStar Services

See also:

Manual Locks
From the outside, unlock the door using either the key or the RKE transmitter. From the inside, use the power door lock switches or manual lock knobs located at the top of the door panel near t ...

When to Check
Check the tires once a month or more. Do not forget the compact spare tire, if the vehicle has one. The cold compact spare should be at 420 kPa (60 psi). For additional information regarding the c ...

Buying New Tires
GM has developed and matched specific tires for your vehicle. The original equipment tires installed on your vehicle, when it was new, were designed to meet General Motors Tire Performance Criteri ...