Phone

See also:

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 ...

How to Wear Safety Belts Properly
This section is only for people of adult size. There are special things to know about safety belts and children. And there are different rules for smaller children and infants. If a child wil ...

What to Use
WARNING: Adding only plain water to the cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. The vehicle’s cool ...