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 InformationUsing the Preset Buttons
Up to seven favorites pages can be saved, and each page can store up to five
channels.
To change a preset button, tune to the new desired channel and hold the button.
Listening to Preset Channels
Continue pressing or
to select the desired favorites
page.
Press the preset button ...
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check
tire pressure levels. The TPMS sensors monitor the air pressure in your tires and
transmit tire pressure readings to a receiver located in the vehicle.
Each tire, including the spare (if provided), should be check ...
Front Turn Signal/Parking Lamps
To replace a front turn signal bulb:
Open the hood. See Hood on page 10-5.
Turn the bulb socket counterclockwise and pull it out of the lamp housing.
Pull the bulb straight out of the bulb socket.
Install the new bulb into the socket by pressing it in.
Install the socket into the ...