Fuel System Messages
ECO MODE ON
On some models, this message displays when the fuel economy mode has been turned on by pressing the eco button near the shift lever. See Fuel Economy Mode on page 9‑31 for more information.
FUEL LEVEL LOW
This message displays when the vehicle is low on fuel. Refuel as soon as possible.
TIGHTEN GAS CAP
This message displays when the fuel cap is not on tight. Tighten the fuel cap.
See also:
Additional Maintenance and Care
Your vehicle is an important investment and caring for it properly may help to avoid future costly repairs. To maintain vehicle performance, additional maintenance services may be required. It is reco ...
Vehicle Overview
The 2011 GMC Yukon is the middle child among GM's full-size SUVs. Based on
price and equipment, the Yukon sits squarely between the Chevrolet Tahoe and
Cadillac Escalade. Four-wheel drive is avail ...
What to Add
Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants on page 11‑12.
Always clean the brake fluid reservoir cap and the area around the cap before removi ...





