Fuel System Messages
FUEL LEVEL LOW
This message displays and a chime sounds if the fuel level is low. Refuel as soon as possible. See Fuel Gauge on page 5‑13 and Fuel on page 9‑40 for more information.
TIGHTEN GAS CAP
This message may display along with the check engine light on the instrument panel cluster if the vehicle's fuel cap is not tightened properly. See Malfunction Indicator Lamp on page 5‑18. Reinstall the fuel cap fully. See Filling the Tank on page 9‑42. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap allows fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn this light and message off.
See also:
Exterior Lighting
The exterior lamps control is located on the instrument panel, to the left of the steering wheel.
: Turns the automatic light control on or off.
AUTO: Automatic operation of the headlamps at norm ...
Engine Oil
To ensure proper engine performance and long life, careful attention must be
paid to engine oil. Following these simple, but important steps will help protect
your investment:
○ Always use ...
Cargo & Towing
The Yukon Denali is a spacious three-row SUV for people, but that's it. If
there are six people and no cargo, the Yukon is a terrific place to be. If you
have a lot of cargo — you know, like lug ...





