OnStar Services
See also:
Automatic Dimming Rearview Mirror
The vehicle may have an automatic dimming inside rearview mirror.
Automatic dimming reduces the glare from the headlamps of the vehicle behind
you. The dimming feature and the indicator light come ...
Reporting Safety Defects to the Canadian Government
If you live in Canada, and you believe that the vehicle has a safety defect,
notify Transport Canada immediately, and notify General Motors of Canada
Limited.
Call Transport Canada at 1-800-333-0 ...