operators_manual

the check engine lamp is to warn the
operator of an impending idle shutdown.
When the idle shutdown timer is 30
seconds from expiring, the ECM begins
flashing the check engine warning lamp
once per second. When the timer expires,
the ECM will turn off the warning lamp and
shut down the engine.
Engine is Overheating
The cooling system may overheat if the
coolant level is below normal or if there is
sudden loss of coolant. Follow these steps
if the engine is overheating.
CAUTION
The cooling system may overheat if
the engine coolant
is at the minimum
level. A sudden loss of coolant,
caused by a split hose or broken hose
clamp could also lead to an overheat
condition. Always inspect to ensure
hoses and clamps are not cracked,
worn, or loose. Failure to comply may
result in equipment or property dam-
age.
NOTE
The system may also temporarily over-
heat during severe
operating condi-
tions such as:
• Climbing a hill on a hot day.
• Stopping after high-speed/ high-
load driving.
• Debris blocking air flow through
the cooling module (radiator).
If the engine coolant temperature warning
lamp comes on and the audible alarm
sounds showing an overheat condition, or
if you have any other reason to suspect the
engine may be overheating, DO NOT
TURN OFF THE ENGINE unless a low
water warning device indicates a loss of
coolant. Follow these steps:
Follow these steps if the engine coolant
temperature is rising, or the temperature is
already above normal, and there are no
other warning alarms displayed in the
instrument cluster.
1. Reduce engine speed, or stop.
When stopped, place the
transmission in neutral (N) and set
the parking brake. Keep the engine
running. See the vehicle operator's
manual for instructions on
transmission shifting and parking
brake information.
WARNING
To reduce the chance of personal in-
jury, vehicle
damage and/or death
from overheated engines, which can
result in a fire, never leave the engine
idling without an alert driver present. If
the engine should overheat, as indicat-
ed by the engine coolant temperature
light, immediate action is required to
correct the condition. Continued unat-
tended operation of the engine, even
for a short time, may result in serious
engine damage or a fire. Failure to
comply may result in death, personal
injury, equipment or property damage.
ENGINE OPERATION - Emergency - What To Do If
12 Y53-1166-1G1 (08/2018)
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