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:
Rear Compartment Fuse Block
The rear compartment fuse block is
located on the left side of the trunk
behind a cover. Vehicles with
eAssist do not have a rear
compartment fuse block.
The vehicle may not be equipped
...
OnStar® Virtual Advisor
OnStar® Virtual Advisor is a feature of OnStar®
Hands-Free Calling that uses your minutes
to access location-based weather, local traffic
reports, and stock quotes. By pressing the phone
button ...
Steering in Emergencies
There are times when steering can be more effective than braking. For example,
you come over a hill and find a truck stopped in the lane, or a child darts out
from between parked cars and stops ri ...