Chevrolet Low Cab Forward 6.7L Diesel Engine 6500XD (GMNA-Localizing-
U.S.-15749874) - 2022 - CRC - 12/1/21
Instruments and Controls
49
speeds beyond permissible levels. Do not
drive your vehicle with the needle in the
red zone.
Caution
Exercise extreme care when shifting down
on a steep downslope. The engine speed
may exceed the critical speed, which can
damage the vehicle.
Fuel Gauge
With the engine control switch in the ON
position, the fuel gauge indicates about how
much fuel is left in the tank.
To check the fuel level with the engine
control switch in the LOCK position, press
the Odometer Check switch.
Fill the tank well before it approaches
empty. After filling up the fuel tank, it takes
awhile for the fuel gauge needle to stabilize
after the engine control switch is turned to
the ON position. If the fuel tank is filled
while the engine is off, but the engine
control switch is in the ON position, the fuel
gauge needle takes awhile to show the
correct reading.
See
“
Low Fuel Warning Light
”
in
and
Engine Coolant Temperature
Gauge
1. Safety Zone
With the engine control switch in the ON
position, this gauge indicates the
temperature of the engine coolant.
“
C
”
means cold while
“
H
”
means hot. During
operation, the needle should stay in the
safety zone. See
{
Warning
If the engine coolant temperature gauge
shows an overheat condition or you have
any other reason to suspect the engine
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