Security Light
The immobilizer light should come on briefly as the engine is started.
If it does not come on, have the vehicle serviced by your dealer.
If the system is working normally, the indicator light turns off.
If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation (Key Access) or Immobilizer Operation (Keyless Access) for more information.
For eAssist vehicles, this light displays in the Driver Information Center (DIC).
See also:
If an Accident Occurs
Here is what to do if you are involved in an
accident.
• Try to relax and then check to make sure you
are all right. If you are uninjured, make sure
that no one else in your vehicle, or the
o ...
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 ...
New Vehicle Break-In
Notice:
The vehicle does not
need an elaborate break-in. But it
will perform better in the long run
if you follow these guidelines:
• Do not drive at any one
constant speed, fast or slow, ...