Engine Coolant - Chevrolet 2011 Volt Owner's Manual

Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The power electronics and charger
modules coolant reservoir is located
on the driver side of the engine
compartment. See Engine
Compartment Overview on
page 10 8 for more information on
location.
Check to see if coolant is visible in
the power electronics and charger
modules coolant reservoir. If coolant
is visible but the coolant level is
below the cold fill line, there could
be a leak in the cooling system.
The power electronics and charger
modules coolant should only be
serviced by a qualified technician.

Engine Coolant

The engine cooling system in the
vehicle is filled with DEX-COOL
engine coolant. This coolant is
designed to remain in the vehicle for
5 years or 240 000 km (150,000 mi),
whichever occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating on
page 10 20.
What to Use
WARNING
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
WARNING (Continued)
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or
others could be burned. Use a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. If using this mixture,
nothing else needs to be added.
This mixture:
Gives freezing protection
down to 37°C ( 34°F),
outside temperature.
Gives boiling protection
up to 129°C (265°F),
engine temperature.
(Continued)
Vehicle Care 10-17