Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving.
If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.
See also:
Certification Label
Label Example
A vehicle-specific Certification
label is attached to either the
driver door edge or the lower
center pillar on the driver side of
the vehicle. The label tells the
gross wei ...
Warranty
OnStar equipment may be
warranted as part of the new-vehicle
limited warranty. The manufacturer
of the vehicle furnishes detailed
warranty information. ...
Selective Ride Control
The vehicle may have a ride control system called Selective Ride Control.
The setting can be changed at any time. Based on road conditions, steering
wheel angle, and the vehicle speed, the system au ...