Reactivation for Subsequent Owners
Push 
and follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
Bulb Replacement
For the proper type of replacement bulbs, see Replacement Bulbs .
For any bulb-changing procedure not listed in this section, contact your dealer. ...
Collision Damage Repair
If your vehicle is involved in a collision and it is
damaged, have the damage repaired by a qualified
technician using the proper equipment and
quality replacement parts. Poorly performed
collisio ...
Reduced Engine Power Light
This light comes on
when a noticeable
reduction in the
vehicle’s performance
occurs.
The vehicle can be driven at a reduced speed
when the reduced engine power light is on,
but accelerati ...