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:
Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits.
If one circuit is not working, the remaining circuit can still work to stop
the vehicle. For normal braking performance, both circuits ...
Engine Compartment Overview
CTS 3.6L V6 Engine Shown, 3.0L V6 Engine Similar
A. Windshield Washer Fluid
Reservoir. See Washer Fluid.
B. Engine Compartment Fuse
Block (CTS V Wagon) or Engine
Compartment Fuse Block
(CT ...
Comfort and convenience
One of the XLR's foremost convenience features is Keyless Access. Keyless
Access makes XLR a truly "keyless" car. A driver can simply keep the fob in a
pocket or purse to operate the doo ...