Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
Overview
GMC announced the all-new 2007 Acadia. It is GMC's first crossover,
delivering a smooth, responsive driving experience, athletic design, a spacious
interior and a comprehensive safety package to t ...
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your tires and transmit tire pressure readings to a ...
Transferring Service
Push to request account transfer
eligibility information. The Advisor can assist in canceling or removing account
information. If OnStar receives information that vehicle ownership has changed,
...