At a minimum, gasoline should meet ASTM specification D 4814. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). We recommend against the use of gasolines containing MMT.
Recommended Fuel
California Fuel RequirementsFront Suspension Description and Operation
The front suspension has 2 primary purposes:
Isolate the driver from irregularities in the road surface.
Define the ride and handling characteristics of the vehicle.
The front suspension absorbs the impact of the tires travelling over
irregular road surfaces and dissipates this energy thr ...
Rear Suspension
Specifications
Rear Suspension Components
Rear Shock Absorber Upper Mount
Rear Shock Absorber Upper Mount
Rear Shock Absorber Upper Mount
Rear Shock Absorber Upper Mount
Shock Absorber Assembly
Upper Dumping Ring
Rear Spring
Lower Dumping Ring
Rear Axle Bushing
Rear Ax ...
Navigation
OnStar navigation requires the Directions and Connections service plan.
Press to receive directions or have
them sent to the vehicle navigation screen, if equipped.
Destinations can also be forwarded to the vehicle from MapQuest.com.
The OnStar mapping database is continuously updated. For cov ...