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:
Head Restraints
The vehicle’s front seats have adjustable head restraints
in the outboard seating positions.
WARNING:
With head restraints that are not installed and
adjusted properly, there is a greater chan ...
Initial Drive Information
This section provides a brief overview about some of the important features that
may or may not be on your specific vehicle.
For more detailed information, refer to each of the features which can b ...
OnStar Overview
If equipped, this vehicle has a
comprehensive, in-vehicle system
that can connect to a live Advisor
for Emergency, Security, Navigation,
Connection, and Diagnostic
Services.
The OnStar sy ...