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 Rotation and Required Services Every 12 000 km/ 7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services.
See Tire Rotation on page 10-48.
Check engine oil level and oil life percentage. If needed, change engine
oil and filter, and reset oil life system. See Engine Oil on page 10-8 and Engine
Oil Life Syste ...
If the On Indicator Is Lit for a Child Restraint
If a child restraint has been installed and the on indicator is lit:
Turn the vehicle off.
Remove the child restraint from the vehicle.
Remove any additional items from the seat such as blankets, cushions, seat
covers, seat heaters, or seat massagers.
Reinstall the child restraint follo ...
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a combination
of fuses, circuit breakers, and fusible thermal links.
This greatly reduces the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted,
...