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:
Driving with a Trailer
Towing a trailer requires experience.
Get familiar with handling and
braking with the added trailer
weight. The vehicle is now longer
and not as responsive as the
vehicle is by itself.
Check ...
Repair Facility
GM also recommends that you choose a collision repair facility that meets your
needs before you ever need collision repairs. Your dealer may have a collision repair
center with GM-trained technici ...
SERVICE TRACTION
CONTROL
This message displays when
there is a problem with the
Traction Control System (TCS).
The TCS/StabiliTrak warning light
on the instrument panel cluster also
comes on. When this message
disp ...