See also:

How OnStar Service Works
: This blue button connects you to a specially trained OnStar advisor to verify your account information and to answer questions. : Push this red emergency button to get priority help fro ...

Climate Control System
The heating, cooling, and ventilation for the vehicle can be controlled with this system. For vehicles with the remote start feature, when activated, the climate control system heats or cools the ...

Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits ...