Recommended Fuel
Use premium unleaded gasoline with a posted octane rating of 91 or higher. You can also use regular unleaded gasoline rated at 87 octane or higher, but the vehicle's acceleration could be slightly reduced, and a slight audible knocking noise, commonly referred to as spark knock, might be heard. If the octane is less than 87, you might notice a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you could damage the engine. If heavy knocking is heard when using gasoline rated at 91 octane or higher, the engine needs service.
See also:
Airbag System Messages
SERVICE AIR BAG
This message displays when there
is a problem with the airbag system.
Have the vehicle serviced by your
dealer immediately. See Airbag
Readiness Light for
more information. ...
When the System Does Not
Seem to Work Properly
The rear vision camera system
might not work properly or display a
clear image if the following occurs:
- It is dark.
- The sun or the beam of
headlamps is shining directly
into the camera l ...
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 opt ...