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:
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle ther ...
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can
calculate the next engine oil change. To reset the system:
1. Using the DIC MENU button and thumbwheel on the turn signal ...
Rear Compartment Fuse
Block (CTS-V Wagon)
The rear compartment fuse block is
located on the passenger side of the
vehicle, behind the trim panel in the
rear compartment.
The vehicle may not be equipped
with all of the fuses and relay ...