Coolant
Surge Tank Pressure Cap
The cooling system pressure cap is located on the
surge tank.
Notice:
Your cooling system pressure cap
is
a
pressure-type cap and must be tightly installed to
prevent coolant
loss
and possible engine damage
from overheating.
Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel. Your Driver Information
Center (DIC) will also display messages about engine
overheating. See
Engine Coolant Temperature Gage
on
page
3-38.
Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
message HOT STOP
ENGINE
is displayed, an overheat
protection mode which alternates firing groups of
cylinders helps prevent engine damage. In this mode,
you will notice a
loss
in power and engine performance.
This operating mode allows your vehicle to be driven
to a safe place in an emergency. Driving extended miles
(km) and/or towing a trailer in the overheat protection
mode should be avoided.
Notice:
After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant
loss,
change the oil and
reset the oil life system. See “Engine
Oil”
in the
Index.
5-28
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