Roadside Assistance Program
For U.S. purchased vehicles, call 1-800-252-1112; (Text Telephone (TTY): 1-888-889-2438).
For Canadian purchased vehicles, call 1-800-268-6800.
Service is available 24 hours a day, 365 days a year.
See also:
Driving with a Trailer
Towing a trailer requires experience.
Get familiar with handling and
braking with the added trailer
weight. The vehicle is now longer
and not as responsive as the
vehicle is by itself.
Check ...
Automatic Door Lock
The doors are programmed to automatically lock when the shift lever is moved
out of P (Park).
The automatic door lock feature cannot be disabled. ...
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment. Added
electrical equipment may interfer ...