OnStar®
OnStar OverviewRoadside Assistance Program
For U.S.-purchased vehicles, call 1-800-243-8872. (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.
Calling for Assistance
When calling Roadside Assistance, have the following information ready:
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Delayed Locking
This feature delays the locking of the doors until five seconds after all doors
are closed.
When is pressed on the power door
lock switch while the door is open, a chime will sound three times indicating delayed
locking is active.
The doors will lock automatically five seconds after all doo ...
TPMS Malfunction Light
The TPMS will not function properly if one or more of the TPMS sensors are missing
or inoperable. When the system detects a malfunction, the low tire warning light
flashes for about one minute and then stays on for the remainder of the ignition
cycle. The malfunction light comes on at each ign ...