OnStar®
Keys and LocksRoadside 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:
...
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 ...
Securing a Child Restraint Designed for the LATCH System
Warning
If a LATCH-type child restraint is not attached to anchors or
with the safety belt, the child restraint will not be able to protect the child
correctly. In a crash, the child could be seriously injured or killed. Install a
LATCH-type child restraint properly using the anchors, or use ...