See also:

Malfunction Indicator Lamp
A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors the operation of the vehicle to ensure emissions are at acceptable levels, to produce a cleaner environment. ...

How OnStar Service Works
Push this blue button to connect to a specially trained OnStar Advisor to verify your account information and to answer questions. Push this red emergency button to get priority help from specially ...

Front Fog Lamp Light
For vehicles with fog lamps, this light comes on when the fog lamps are on. The light goes out when the fog lamps are turned off. See Fog Lamps for more information. ...