2014 CHEVROLET VOLT check engine

(16,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
10-16 Vehicle Care
coolant level is below the cold fill
line, there could be a leak in the
cooling system.
The high voltage battery coolant
should only be serviced by a
qualified technician.
Cooling System (Power
Electronics and Charger
Modules)
The power electronics and charger
modules are cooled using the same
coolant loop.
The power electronics and charger
modules in the vehicle are kept
below a maximum temperature.
If the temperature rises above this
temperature, the electric cooling
fans will turn on and cool the
coolant until the correct temperature
is reached.
What to Use
The power electronics and charger
modules coolant reservoir in the
vehicle is filled with a 50/50 mixture
of DEX-COOL engine coolant and
deionized water. If using this
mixture, nothing else needs to be
added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule on
page 11-2.
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
in the engine compartment. See
Engine Compartment Overview on
page 10-8.
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.

(17,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-17
Engine Coolant
The engine cooling system in the
vehicle is filled with DEX-COOL
engine coolant. The coolant needs
to be replaced every 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,
seeEngine Overheating on
page 10-19.
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
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
(Continued)
Warning (Continued)
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 deionized water
and DEX-COOL coolant.
Use a 50/50 mixture of deionized
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.
.Protects against rust and
corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
{Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much deionized
water or clean drinkable water
can freeze and crack engine
cooling parts. The repairs would
not be covered by the vehicle
warranty. Use only the proper
mixture of engine coolant for the
cooling system. See
Recommended Fluids and
Lubricants on page 11-10.
Never dispose of engine coolant by
putting it in the trash, pouring it
on the ground, or into sewers,
streams, or bodies of water. Have
the coolant changed by an
authorized service center, familiar
with legal requirements regarding

(18,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
10-18 Vehicle Care
used coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at or
above the cold fill mark, add a
50/50 mixture of deionized water
and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system is cool before this is
done. SeeEngine Overheating on
page 10-19 for more information.
The coolant reservoir is located on
the passenger side of the engine
compartment. See Engine
Compartment Overview on
page 10-8 for more information on
location. The coolant level should be at or
above the cold fill line on the
coolant surge tank. If it is not, there
could be a leak in the cooling
system.How to Add Coolant to the
Coolant Surge Tank
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
{Caution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
{Warning
The electric fans under the hood
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 can blow out
and burn you badly. They are
under pressure, and if you turn
the surge tank pressure
cap
—even a little —they can
come out at high speed. Never
turn the cap when the cooling
system, including the surge tank
pressure cap, is hot. Wait for the
cooling system and surge tank
pressure cap to cool if you ever
have to turn the pressure cap.

(19,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-19
If coolant is needed, add the proper
DEX-COOL coolant mixture 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 slowlycounterclockwise. 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 with
the proper mixture to the cold
fill line.
4. Replace the pressure cap. Be sure the pressure cap is
hand-tight and fully seated.
{Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
The vehicle has an indicator to warn
of engine overheating.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program on
page 13-5.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If they are not,
do not continue to run the vehicle
and have the vehicle serviced.
{Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.

(22,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
10-22 Vehicle Care
.A fluid leak in the brake
hydraulic system can also cause
a low fluid level. Have the brake
hydraulic system fixed, since a
leak means that sooner or later
the brakes will not work well.
Do not top off the brake fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are
installed. Add or remove brake fluid,
as necessary, only when work is
done on the brake hydraulic system.
{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You
or others could be burned, and
the vehicle could be damaged.
Add brake fluid only when work is
done on the brake hydraulic
system. When the brake fluid falls to a low
level, the brake warning light comes
on. See
Brake System Warning
Light on page 5-21.
Checking Brake Fluid
Check brake fluid by looking at the
brake fluid reservoir. See Engine
Compartment Overview on
page 10-8.
With the vehicle not running for at
least one minute, the maximum fluid
level (1) is at the top of the reservoir body. With the vehicle running, the
fluid level should be in the proper
operating range (2) between the
MIN and MAX marks. If it is not,
have the brake hydraulic system
checked to see if there is a leak.
After work is done on the brake
hydraulic system, make sure the
level, with the vehicle running, is in
the proper operating range (2)
between the MIN and MAX marks.
What to Add
Use only new DOT 3 brake fluid
from a sealed container. See
Recommended Fluids and
Lubricants on page 11-10.
Always clean the brake fluid
reservoir cap and the area around
the cap before removing it. This
helps keep dirt from entering the
reservoir.

(31,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-31
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and the wiper control is turned off.
After removal of the blockage, the
wiper motor will restart when the
control is then moved to the desired
operating position.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice, may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Engine Compartment
Fuse Block
To open the fuse block cover, press
the clips at the front and back and
rotate the cover up to the side.
{Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.

(39,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
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Vehicle Care 10-39
A fuse puller is in the engine
compartment fuse block.
The vehicle may not have all of the
fuses, relays, and features shown.Fuses Usage
F1 Empty
F2 Fuel System Control Module
F3 Passive Start/ Passive Entry
Module
F4 Heated Seats (If Equipped)
F5 Driver Door Switches (Outside
Rearview Mirror/
Charge Port Door
Release/Refuel
Request/Driver
Window Switch)
F6 Fuel (Diurnal Valve and Evap. Leak
Check Module) Fuses
Usage
F7 Accessory Power Module Cooling Fan
F8 Amplifier (If Equipped)
F9 Empty
F10 Regulated Voltage Control/Ultrasonic
Front and Rear
Parking Assist (If
Equipped)
F11 Horn
F12 Rear Power Windows
F13 Electric Parking Brake
F14 Rear Defog
F15 Empty
F16 Hatch Release
F17 Empty
F18 Empty Relays
Usage
R1 Rear Defog
R2 Hatch Release
R3 Empty
R4 Empty
R5 Empty
R6 Empty
R7/R8 Horn
Diodes Usage DIODE Empty

(71,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-71
Caution (Continued)
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Park both vehicles close enough so that the jumper cables can
reach both vehicles' positive (+)
and negative (−) terminals. The
vehicles must not touch each
other. It could cause an
unwanted ground connection
that could damage both vehicles'
electrical systems.
Put both vehicles in P (Park) for
an automatic transmission or
electric drive unit. For a manual
transmission, place the vehicle
in Neutral and set the parking
brake.
{Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting.
3. Turn off the ignition on the other vehicle. Turn off the radio, all
lamps, and accessories that are
not needed in both vehicles.
Unplug accessories from the
cigarette lighter or the accessory
power outlets. This avoids
sparks and helps save both
batteries and accessories.
4. Locate the positive (+) and negative (−) terminals on the
other vehicle.
5. Open the hood to locate the positive (+) and negative (−)
terminals on your Volt. Open the access cover for the remote
positive (+) terminal (1). The
remote negative (−) terminal (2)
for the Volt is a stud marked
GND (−) on the driver side of the
engine compartment.
6. Check that the jumper cables do not have loose or missing
insulation or a shock could result
and the vehicles could be
damaged.
Before connecting the jumper
cables, here are some basic
things to know. Positive (+)
jumper cable goes to positive (+)
battery terminal or a remote
positive (+) terminal if available.
Negative (−) jumper cable goes
to negative (−) battery terminal
or a remote negative (−) terminal
if available. Do not connect
positive (+) to negative (−) or
there will be a short that may
damage the battery and other
parts of the vehicle.