Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12163007) - 2019 - CRC - 11/5/18
Vehicle Care 239
2. Pull the release handle withthis symbol. It is below the
instrument panel outboard of
the steering wheel.
3. Go to the front of the vehicle
and locate the secondary
release lever under the front
left center of the hood. Push
the secondary hood release
lever to the right to disengage.
4. Lift the hood and release thehood prop rod from its retainer
above the radiator support.
Place the prop rod securely
into the slot in the hood.
To close the hood:
1. Before closing the hood, check that all filler caps are properly
installed. Then, lift the hood to
relieve pressure on the
hood prop. 2. Remove the hood prop from
the slot in the hood and return
it to its retainer above the
radiator support. The prop rod
must lock into place when
returning it to the retainer to
prevent hood damage.
3. Lower the hood 20 cm (8 in) above the vehicle and release
it so it fully latches. Check to
make sure the hood is firmly
closed. Repeat the process if
necessary.
Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12163007) - 2019 - CRC - 11/5/18
Vehicle Care 247
{Warning
An underhood electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
If the coolant inside the coolant
surge tank is boiling, do not do
anything else until it cools down.
The vehicle should be parked on a
level surface.
The coolant level should be up to
the cold fill line. If it is not, there
might be a leak at the radiator
hoses, heater hoses, radiator, water
pump, or somewhere else in the
cooling system.
{Warning
Do not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can (Continued)
Warning (Continued)
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the
vehicle.
If there seems to be no leak, with
the engine on, check to see if the
cooling fans are running. If the
engine is overheating, the fans
should be running. If they are not,
the vehicle needs service. Turn off
the vehicle.
Engine Coolant
The engine cooling system in the
vehicle is filled with GM Premix
DEX-COOL engine coolant. See
Recommended Fluids and
Lubricants 0329. The coolant
requires changing at certain
intervals. See Maintenance
Schedule 0321. 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 0252.
What to Use
{Warning
Plain water, or other liquids such
as alcohol, can boil before the
proper coolant mixture will. With
plain water or the wrong mixture,
the engine could get too hot but
there would not be an overheat
warning. The engine could catch
fire and you or others could be
burned.
Use GM Premix DEX-COOL engine
coolant. This mixture:
. Gives freezing protection down
to−37 °C (−34 °F), outside
temperature.
. Gives boiling protection up to
129 °C (265 °F), engine
temperature.
Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12163007) - 2019 - CRC - 11/5/18
Vehicle Care 249
{Warning
An underhood electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.
Caution
Failure to follow the specific
coolant fill procedure could cause
system damage. If coolant is not
visible in the hybrid surge tank(s),
contact your dealer.
If coolant is needed, add the proper
GM Premix DEX-COOL engine
coolant at the coolant surge tank.
The coolant surge tank pressure
cap can be removed when the
cooling system, including the surge
tank pressure cap and upper
radiator hose, is no longer hot. 1. Turn the pressure cap slowly counterclockwise. If a hiss is
heard, wait for that to stop.
A hiss means there is still
some pressure left. 2. Keep turning the cap and
remove it.
3. Fill the coolant surge tank withthe proper mixture to the cold
fill line.
4. Reinstall the pressure cap. Be sure the pressure cap is
hand-tight and fully seated.
