See also:

General Information
This maintenance section applies to vehicles with a gasoline engine. For diesel engine vehicles, see the maintenance schedule section in the Duramax Diesel Supplement. Your vehicle is an important in ...

Fuel System Messages
FUEL LEVEL LOW This message displays and a chime may sound if the fuel level is low. Refuel as soon as possible. See Fuel Gauge on page 5‑15 and Fuel on page 9‑73 for more information. ...

Locking Rear Axle
Vehicles with a locking rear axle can give more traction on snow, mud, ice, sand, or gravel. It works like a standard axle most of the time, but when traction is low, this feature will allow the rear ...