OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationTires
Every new GM vehicle has high-quality tires made by a leading tire manufacturer.
See the warranty manual for information regarding the tire warranty and where to
get service. For additional information refer to the tire manufacturer.
Warning
Poorly maintained and improperly used tires are d ...
Using the Tire Sealant and Compressor Kit to Temporarily Seal and Inflate a
Punctured Tire
When using the tire sealant and compressor kit during cold temperatures, warm
the kit in a heated environment for five minutes.
This will help to inflate the tire faster.
If a tire goes flat, avoid further tire and wheel damage by driving slowly to
a level place. Turn on the hazard warning fla ...
Roadside 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:
...