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 InformationTire Designations
Tire Size
The following is an example of a typical passenger vehicle tire size.
(1) Passenger (P-Metric) Tire: The United States version of a metric tire sizing
system. The letter P as the first character in the tire size means a passenger vehicle
tire engineered to standards set by the U. ...
Collision Parts
Genuine GM Collision parts are new parts made with the same materials and construction
methods as the parts with which the vehicle was originally built. Genuine GM Collision
parts are the best choice to ensure that the vehicle's designed appearance, durability,
and safety are preserved. Th ...
Smartphone Link (Overview)
Before Using Smartphone Link
If equipped, the vehicle can connect to Pandora®, Stitcher SmartRadio®, or other
available applications through the infotainment system.
The applications must be downloaded to the device first, then the device can
be connected to the infotainment system.
Pandora i ...