Phone

See also:

ENGINE OVERHEATED — STOP ENGINE
This message displays and a continuous chime sounds if the engine cooling system reaches unsafe temperatures for operation. Stop and turn off the vehicle as soon as it is safe to do so to avo ...

Battery
Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview  for battery location. WARNING Battery posts, terminals, an ...

How OnStar Service Works
: This blue button connects you to a specially trained OnStar advisor to verify your account information and to answer questions. : Push this red emergency button to get priority help fro ...