coolant check CHEVROLET VOLT 2018 Owner's Manual

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Instruments and Controls 99
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 100
Steering Wheel Controls . . . . . . 100
Heated Steering Wheel . . . . . . . 100
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Pedestrian Safety Signal . . . . . 100
Windshield Wiper/Washer . . . . 101
Compass . . . . . . . . . . . . . . . . . . . . . 102
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 102
Power Outlets . . . . . . . . . . . . . . . . 103
Wireless Charging . . . . . . . . . . . . 103
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . 106
Instrument Cluster . . . . . . . . . . . . 106
Speedometer . . . . . . . . . . . . . . . . . 110
Odometer . . . . . . . . . . . . . . . . . . . . . 110
Trip Odometer . . . . . . . . . . . . . . . . 110
Battery Gauge (High Voltage) . . . . . . . . . . . . . . . . . . . . . 110
Fuel Gauge . . . . . . . . . . . . . . . . . . . 110
Driver Efficiency Gauge . . . . . . . 111
Power Indicator Gauge . . . . . . . 112 Seat Belt Reminders . . . . . . . . . . 112
Airbag Readiness Light . . . . . . . 113
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . 113
Charging System Light (12-Volt
Battery) . . . . . . . . . . . . . . . . . . . . . 114
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 114
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 116
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 117
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 117
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 117
Sport Mode Light . . . . . . . . . . . . . 118
Mountain Mode Light . . . . . . . . . 118
Hold Mode Light . . . . . . . . . . . . . . 118
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 118
Vehicle Ahead Indicator . . . . . . . 119
Traction Off Light . . . . . . . . . . . . . 119
StabiliTrak OFF Light . . . . . . . . . 119
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 119
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 120
Tire Pressure Light . . . . . . . . . . . 120
Engine Oil Pressure Light . . . . 120 Low Fuel Warning Light . . . . . . 121
Security Light . . . . . . . . . . . . . . . . . 121
Vehicle Ready Light . . . . . . . . . . 121
High-Beam On Light . . . . . . . . . . 122
Lamps On Reminder . . . . . . . . . 122
Cruise Control Light . . . . . . . . . . 122
Door Ajar Light . . . . . . . . . . . . . . . 122
Information Displays
Power Flows . . . . . . . . . . . . . . . . . 123
Programmable Charging . . . . . . 123
Energy Information . . . . . . . . . . . 132
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . 133
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 136
Propulsion PowerMessages . . . . . . . . . . . . . . . . . . . 136
Vehicle Speed Messages . . . . . 137
Vehicle Personalization
Vehicle Personalization . . . . . . . 137

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
120 Instruments and Controls
DIC messages to determine which
feature(s) is no longer functioning
and whether the vehicle requires
service.
If the light is on and flashing, the
TCS and/or the StabiliTrak system
is actively working.
SeeTraction Control/Electronic
Stability Control 0189.
Engine Coolant
Temperature Warning
Light
The engine coolant temperature
warning light comes on briefly when
the vehicle is started.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light then goes off. If the light comes on and stays on
while driving, the vehicle may have
a problem with the cooling system.
Stop and turn off the vehicle to
avoid damage to the engine.
A warning chime sounds when this
light is on.
See
Engine Overheating 0250 for
more information.
Tire Pressure Light
If equipped with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the vehicle is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated. A message in the Driver Information
Center (DIC) may also display. Stop
as soon as possible, and inflate the
tires to the pressure value shown on
the Tire and Loading Information
label. See
Tires0271.
When the Light Flashes First and
Then Is On Steady
This indicates that there may be a
problem with the TPMS. The light
flashes for about one minute and
stays on steady until the vehicle is
off. This sequence repeats each
time the vehicle is started. See Tire
Pressure Monitor System 0280.
Engine Oil Pressure Light
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check
the oil level as soon as possible.
(Continued)

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
240 Vehicle Care
1. Windshield Washer FluidReservoir. See “Adding Washer
Fluid” under Washer Fluid
0 250.
2. Engine Air Cleaner/Filter 0243.
3. Engine Oil Fill Cap. See Engine Oil 0240.
4. Engine Oil Dipstick. See Engine Oil 0240.
5. Engine Cooling Fans (Out of View).
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
6. Brake Fluid Reservoir. See Brake Fluid 0252.
7. Electric Drive Unit Fluid Cap.
8. High Voltage Battery Coolant Reservoir and Pressure Cap.
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or Cooling System (Power
Electronics and Charger
Modules)
0249.
9. Engine Coolant Surge Tank and Pressure Cap.
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
10. Remote Positive (+) Terminal. SeeJump Starting - North
America 0306.
11. Power Electronics Coolant Reservoir and Pressure Cap.
SeeCooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
12. Engine Compartment Fuse
Block 0262.
13. Remote Negative (−) Terminal. SeeJump Starting - North
America 0306.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0242.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Vehicle Care 245
Cooling System (Engine)
1. Engine Cooling Fans (Outof View)
2. Engine Coolant Surge Tank and Pressure Cap
{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
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
0335. The coolant
requires changing at certain
intervals. See Maintenance
Schedule 0327.
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 0250.
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
(Continued)

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
246 Vehicle Care
Warning (Continued)
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.
. Protects against rust and
corrosion.
. Will not damage aluminum parts.
. Helps keep the proper engine
temperature.
Caution
Do not use anything other than a
pre-mix of DEX-COOL coolant
that meets GM Standard
GMW3420 and deionized water.
Anything else can cause damage
to the hybrid cooling system
components and the vehicle,
which would not be covered by
the vehicle warranty.
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 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 line, add GM
Premix DEX-COOL engine coolant.
Be sure the cooling system is cool
before this is done. See
Engine
Overheating 0250.
The coolant surge tank is on the
driver side of the engine
compartment. See Engine
Compartment Overview 0239.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
248 Vehicle Care
3. Fill the coolant surge tank withthe 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 engine
damage may occur. Be sure the
cap is properly and tightly
secured.
Cooling System (High
Voltage Battery)
During vehicle operation and also
during charging, the high voltage
battery cells in the vehicle are kept
within a normal operating
temperature range. If the high
voltage battery cell temperature
rises above the normal operating
temperature range, the battery
cooling system turns on the air
conditioning compressor and cools
the coolant until the correct battery
cell temperature is reached. If the
high voltage battery cell temperature
falls below the normal operating
temperature range, a high voltage
heater, located in the battery, heats
the coolant until the correct battery
cell temperature is reached.
During high voltage battery system
cooling, you may feel temperature
changes at the air vents due to the
extra load on the system.
What to Use
The high voltage battery coolant
reservoir in the vehicle is filled with
GM Premix DEX-COOL engine
coolant. See Recommended Fluids
and Lubricants 0335. If using this
mixture, nothing else needs to be
added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule 0327.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The high voltage battery coolant
reservoir is located in the engine
compartment. See Engine
Compartment Overview 0239.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Vehicle Care 249
1. High Voltage BatteryCoolant Reservoir
2. Power Electronics Coolant Reservoir
Check to see if coolant is visible in
the high voltage battery coolant
reservoir (1). If coolant is visible but
the coolant level is below the cold
fill line on the side of the reservoir,
there could be a leak in the cooling
system.
The high voltage battery cooling
system supports the operation of
sensitive electronics that are critical
to vehicle operation. The high voltage battery cooling
system 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
threshold. If the coolant temperature
rises above this temperature
threshold, 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 GM Premix
DEX-COOL engine coolant. See
Recommended Fluids and
Lubricants
0335. If using this
mixture, nothing else needs to be
added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule 0327.
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
0239.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
250 Vehicle Care
1. High Voltage BatteryCoolant Reservoir
2. Power Electronics Coolant Reservoir
Check to see if coolant is visible in
the power electronics coolant
reservoir (2). If coolant is visible but
the coolant level is below the cold
fill line on the side of the reservoir,
there could be a leak in the cooling
system.
The power electronics cooling
system supports the operation of
sensitive electronics. The power electronics cooling
system should only be serviced by a
qualified technician.
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
0
345.
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
Do not run the engine when there
is a leak in the hybrid cooling
system. This can cause a loss of
all coolant and can damage the
system and the vehicle. Have any
leaks fixed right away.
Washer Fluid
What to Use
When adding windshield washer
fluid to the vehicle, be sure to read
the manufacturer's instructions
before use. If operating the vehicle
in an area where the temperature
may fall below freezing, use a fluid
that has sufficient protection against
freezing.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Service and Maintenance 327
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil 0240.
Once a Month
. Check the tire inflation
pressures. See Tire Pressure
0 279.
. Inspect the tires for wear. See
Tire Inspection 0284.
. Check the windshield washer
fluid level. See Washer Fluid
0 250.
. Engine, power electronics, and
high voltage battery pack
coolant level checks.
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
Engine Oil Change
Every 24 months or when the
CHANGE ENGINE OIL SOON
message displays, change the
engine oil and filter as soon as
possible, within the next 1 000 km/
600 mi. The engine oil and filter
must be changed at least once
every 24 months. After each oil and
filter change, the oil life system must
be reset. See Engine Oil Life
System 0242. More frequent
changes may be required when the
vehicle is exposed to a corrosive
environment, such as areas of high
humidity, along an ocean coast,
and/or areas that apply road salt
during winter.
Your trained dealer technician can
perform this work. If the engine oil
life system is reset accidentally,
service the vehicle within 5 000 km/
3,000 mi since the last service.
Reset the oil life system when the
oil is changed.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0284.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system.
See Engine Oil 0240 and
Engine Oil Life System 0242.
. Check engine coolant level.
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
. Check windshield washer fluid
level. See Washer Fluid 0250.
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0315. Replace worn or

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
370 Index
E
Electric Drive Unit . . . . . . . . . . . . . . 183
Electric Drive Unit Shift LockControl Function Check . . . . . . . 255
Electric Mode . . . . . . . . . . . . . . . . . . . 176
Electric Parking Brake . . . . . . . . . . 185
Electric Parking Brake Light . . . . 117
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 232
Electrical Requirements for
Battery Charging . . . . . . . . . . . . . . 227
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 262
Fuses and Circuit Breakers . . . 262
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 266
Overload . . . . . . . . . . . . . . . . . . . . . 261
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 269
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 356
Energy Efficiency Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Energy Information . . . . . . . . . . . . . 132
Engine Air Cleaner/Filter . . . . . . . . . . . . . 243 Engine (cont'd)
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . .114
Compartment Overview . . . . . . . 239
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 120
Cooling System . . . . . 245, 248, 249
Drive Belt Routing . . . . . . . . . . . . 340
Exhaust . . . . . . . . . . . . . . . . . . . . . . 182
Oil Life System . . . . . . . . . . . . . . . 242
Oil Pressure Light . . . . . . . . . . . . 120
Overheating . . . . . . . . . . . . . . . . . . 250
Running While Parked . . . . . . . . 183
Engine Unavailable
Out of Fuel . . . . . . . . . . . . . . . . . . . 180
Entry Lighting . . . . . . . . . . . . . . . . . . . 151
Event Data Recorders . . . . . . . . . . 353
Exit Lighting . . . . . . . . . . . . . . . . . . . . 151
Extended Parking . . . . . . . . . . . . . . . 176
Extended Range Mode . . . . . . . . . 177
Extender, Seat Belt . . . . . . . . . . . . . . 63
Exterior Lamp Controls . . . . . . . . . 145
F
Filter, Engine Air Cleaner . . . . . . . . . . . 243
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 147
Flashers, Hazard Warning . . . . . . 148 Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 291
Changing . . . . . . . . . . . . . . . . . . . . . 299
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 323
Fluid Brakes . . . . . . . . . . . . . . . . . . . . . . . . 252
Washer . . . . . . . . . . . . . . . . . . . . . . . 250
Folding Mirrors . . . . . . . . . . . . . . . . . . 48
Forward Automatic Braking . . . . . 207
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 205
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 351
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 54
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 56
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Additives . . . . . . . . . . . . . . . . . . . . . 229
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 231
Filling the Tank . . . . . . . . . . . . . . . 229
Foreign Countries . . . . . . . . . . . . 229
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .110
Low Fuel Warning Light . . . . . . . 121
Requirements, California . . . . . 229
Function Check
Electric Drive Unit ShiftLock Control . . . . . . . . . . . . . . . . 255