GMC 2002 Yukon Denali Owner's Manual page 164

Cruise Light
United States
The CRUISE light comes on whenever you set your
cruise control. See "Cruise Control" in the Index.
Tow/Haul Light
For more information, see "Tow/Haul Mode" in
the Index.
2-76
Canada
This light is displayed
when the tow/haul mode
has been activated.
Fuel Gage
United States
The fuel gage, when the ignition is on, tells you about
how much fuel you have left in your tank.
The gage will first indicate empty before you are out of
fuel, and you should get more fuel as soon as possible.
Canada