OnStar Services
See also:
Remote Start Heated Seats
When it is cold outside, the heated seats can be turned on automatically during
a remote vehicle start. The heated seats will be canceled when the ignition is turned
on. Press the control to use t ...
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 ...
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...
