Coolant Surge Tank Pressure
Cap
See
Engine Compartment
Overview on page 5-14
for
more information on
location.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank.
Notice:
Your pressure cap is a pressure-type cap
and must be tightly installed to prevent coolant
loss
and possible engine damage from overheating.
See “Capacities and Specifications” for more
information.
Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel. See
Engine Coolant
Temperature Gage
on
page 3-44.
In addition, you will
find a LOW COOLANT LEVEL, ENGINE OVERHEATED
and a REDUCED ENGINE POWER message in the
DIC on the instrument panel. See
Driver Information
Center (DIC) on page 3-52.
Overheated Engine Protection
Operating Mode
(V8
Engines Only)
If an overheated engine condition exists and the
REDUCED ENGINE POWER message 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.
5-30