Warning Lights, Gages And Indicators; 24-Volt Gage - GMC 2004 Defense Owner's Manual

The topper mounted master switch (A) is located on
the rear center of the topper roof. If the master switch
is turned OFF the following will occur:
•
The interior mounted 3-way switch will not
function.
•
The bed mounted 3-way switch will not function.
The dome lamp will not function in the blackout
mode.
Warning Lights, Gages and
Indicators

24-Volt Gage

The 24-volt gage is located in the instrument panel
next to the service and blackout lighting switch.
Engine Running Reading
13717
The gage needle should be in the green band when
engine speed is above an idle. If the needle is not in
the green band, the fuse may have blown. If the fuse
is not blown and the system still does not work
properly, refer to your local GM dealer.
13903
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