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 InformationFilling the Tank
Warning
Fuel vapors and fuel fires burn violently and can cause injury
or death.
To help avoid injuries to you and others, read and follow
all the instructions on the fuel pump island.
Turn off the engine when refueling.
Keep sparks, flames, and smoking materials away from fuel.
Do n ...
Replacing Safety Belt System Parts after a Crash
Warning
A crash can damage the safety belt system in the vehicle.
A damaged safety belt system may not properly protect the person using it, resulting
in serious injury or even death in a crash. To help make sure the safety belt systems
are working properly after a crash, have them inspected a ...
Retained Accessory Power (RAP)
These vehicle accessories may be used for up to 10 minutes after the engine is
turned off:
Audio System
Power Windows
The power windows will continue to work for up to 10 minutes or until any door
is opened. The radio will work when the key is in ON/RUN or ACC/ACCESSORY. Once
the key ...