Chevrolet Low Cab Forward 2023 Manual page 64

overheating engine immediately. Otherwise,
the engine may seize up. Take appropriate
actions for engine overheating.
This light will also activate the engine alarm
and automatic shutdown system,
if equipped.
See Engine Alarm and Automatic Shutdown
0 137, Engine Overheating 0 206, Engine
Coolant 0 203, and Engine Coolant
Temperature Gauge 0 50.
{
Warning
When the engine coolant is still hot, do
not remove the sub tank pressure cap.
Hot vapor will come out and you may be
scalded. Add engine coolant only when
the engine coolant temperature has
dropped.
If this light comes on and stays on while
you are driving, your engine coolant
might have overheated and your engine
may be too hot. You should pull off the
road, stop your vehicle and take
appropriate actions for engine
overheating.
Low Coolant Warning Light
LOW COOLANT
If this message and light come on, the
system is low on engine coolant and the
engine may overheat. A warning tone also
sounds. If this light comes on while driving,
stop the vehicle immediately and check the
cooling system for leaks. See Engine Coolant
0 203 and have the vehicle serviced by your
dealer. This light will also activate the
engine alarm and automatic shutdown
system. See Engine Alarm and Automatic
Shutdown 0 137 and
Engine Shutdown Warning Light 0 58.
Water Separator (Pre-Fuel Filter)
Warning Light
WATER SEPARATOR
This message displays and a warning light
appears when the level in the water
separator on the fuel line is beyond the
specified level. Drain water following the
instructions in the Water in Fuel section and
make sure the warning light goes out. See
Water in Fuel 0 183.
If you continue driving with the message
displayed, the fuel injection system may fail.
See Water in Fuel 0 183.
Instruments and Controls
Air Cleaner Light
CHECK AIR FILTER
This message displays and a warning light
appears when the next air cleaner element
service interval is near or has already been
reached.
Replace the air cleaner element. See Engine
Air Cleaner/Filter 0 202.
Low Fuel Warning Light
LOW FUEL
This message displays and a warning light
appears when the fuel level in the tank
becomes too low while the engine is
running. Add fuel at the earliest possible
time. If the vehicle runs out of fuel, air
bleeding procedure must be performed.
See Fuel for Diesel Engines 0 182, Fuel Gauge
0 50, and Running Out of Fuel 0 185.
Parking Brake Not Set Warning Light
PARK BRAKE NOT SET
This warning light appears on the display
and a buzzer sounds when any of the doors
are opened while the parking brake is not
applied.
63