GMC 2001 Sierra - Manual (Page 181)

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Tow/Haul Light
(Automatic Transmissions Only)
This message is displayed
when the tow/haul mode has
been activated.
For more information see, “Tow/Haul Mode” in the Index.
Fuel Gage
United States Canada
When the ignition is on, the fuel gage tells you about
how much fuel you have left in your tank.
The gage will first indicate E (Empty) before you are out
of fuel, and you should get more fuel as soon as possible.
Here are some situations you may experience with your fuel
gage. None of these indicate a problem with the fuel gage.
D At the gas station, the fuel pump shuts off before the
gage reads F (Full).
D It takes a little more or less fuel to fill up than the
fuel gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank’s capacity to fill
the tank.
D The gage goes back to E (Empty) when you turn off
the ignition.
If you have a diesel engine, see “Fuel Gage” in the
Diesel Engine Supplement.