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 InformationNew Vehicle Break-In
Caution
The vehicle does not need an elaborate break-in. But it will perform
better in the long run if you follow these guidelines:
Do not drive at any one constant speed, fast or slow, for
the first 805 km (500 mi).
Do not make full-throttle starts. Avoid downshifting to brake or slow t ...
Engine Coolant Temperature Warning Light
This light comes on briefly while
starting the vehicle.
If it does not, have the vehicle serviced by your dealer. If the system is working
normally the indicator light goes off.
Caution
The engine coolant temperature warning light indicates that the
vehicle has overheated. Driving with this ...
System Settings
Configuring the Number of Favorite Pages
Up to six favorite pages can be saved, and each page can store up to six radio
stations.
To configure the number of available favorite pages:
Press the CONFIG button.
Select Radio Settings.
Select Radio Favorites.
Select the number of available ...