engine coolant CHEVROLET VOLT 2018 User Guide

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
Vehicle Care 251
Adding Washer Fluid
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. SeeEngine
Compartment Overview 0239 for
reservoir location.
Caution
. Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
(Continued)
Caution (Continued)
.Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can be heard all the time when the
vehicle is moving, except when
applying the brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
264 Vehicle Care
A fuse puller is in the engine
compartment fuse block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
F01 –
F02 –
F03 Non walk home
F04 Engine control module
F05 Aeroshutter
F06 Traction power inverter module 1
F07 Traction power inverter module 2
F08 Engine control module
F09 Air conditioning module
F10 Vehicle integration control module
F11 Electric brake boost Fuses Usage
F12 Rechargeable energy storage
system
F13 Cabin heater control module
F14 Coolant heater control module
F15 Emissions
F16 Ignition coils
F17 Engine control module
F18 –
F19 –
F20 Electric brake boost
F21 Windshield wiper motor
F22 Antilock brake system pump
F23 Windshield washer pump
F24 –
F25 – Fuses Usage
F26 –
F27 Antilock brake system module
F28 Left power window
F29 Rear window defogger
F30 Heated mirrors
F31 –
F32 Variable functions
F33 –
F34 Horn
F35 Coolant rechargeable energy
storage
system pump
F36 Right high-beam headlamp
F37 Left high-beam headlamp
F38 –
F39 –
F40 –

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Vehicle Care 265
FusesUsage
F41 Miscellaneous run/ Crank
F42 Run/Crank 3
F43 –
F44 Voltage current temperature module
run/Crank
F45 Heated steering wheel
F46 Vehicle integration control module run/
Crank
F47 –
F48 –
F49 –
F50 –
F51 –
F52 Engine control module/Traction
power inverter
module
F53 Left cooling fan Fuses
Usage
F54 Right cooling fan
F55 Electric pump
F56 –
F57 –
Relays Usage
K01 –
K02 –
K03 Engine control module
K04 –
K05 –
K06 –
K07 –
K08 –
K09 –
K10 –
K11 –
K12 High-beam headlamps
K13 – Relays
Usage
K14 Run/Crank
K15 Rear window defogger
K16 Horn PCB relay
K17 –
K18 –
K19 Coolant pump PCB relay
K20 –
K21 –
K22 Front washer
K23 –

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
Index 369
Compass . . . . . . . . . . . . . . . . . . . . . . . 102
Compressor Kit, Tire Sealant . . . 292
ConnectionsOnStar . . . . . . . . . . . . . . . . . . . . . . . 358
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 189
Control of a Vehicle . . . . . . . . . . . . . 162
Convex Mirrors . . . . . . . . . . . . . . . . . . 48
Coolant Engine Temperature
Warning Light . . . . . . . . . . . . . . . 120
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 153
Cooling System . . . . . . .245, 248, 249
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 347
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Cruise Control . . . . . . . . . . . . . . . . . . 191 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Cruise Control, Adaptive . . . . . . . . 193
Customer Assistance . . . . . . . . . . . 344
Offices . . . . . . . . . . . . . . . . . . . . . . . . 343
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 344 Customer Information
Service Publications
Ordering Information . . . . . . . . 351
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 341
D
Damage Repair, Collision . . . . . . . 348
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 354
OnStar . . . . . . . . . . . . . . . . . . . . . . . 354
Data Recorders, Event . . . . . . . . . 353
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 147
Defensive Driving . . . . . . . . . . . . . . . 162
Delayed Charging Override . . . . . 215
Delayed Locking . . . . . . . . . . . . . . . . . 42
Diagnostics OnStar . . . . . . . . . . . . . . . . . . . . . . . 360
Distracted Driving . . . . . . . . . . . . . . . 161
Dome Lamps . . . . . . . . . . . . . . . . . . . 150
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 122
Delayed Locking . . . . . . . . . . . . . . . . 42
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Power Locks . . . . . . . . . . . . . . . . . . . . 42 Drive Belt Routing, Engine . . . . . . 340
Drive Unit
Electric . . . . . . . . . . . . . . . . . . . . . . . 183
Driver Assistance Systems . . . . . 200
Driver Efficiency Gauge . . . . . . . . 111
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 133
Driver Mode Control . . . . . . . . . . . . 190
Driver Selected Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . 177
Driving
Assistance Systems . . . . . . . . . . 205
Defensive . . . . . . . . . . . . . . . . . . . . . 162
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 162
Hill and Mountain Roads . . . . . . 165
If the Vehicle is Stuck . . . . . . . . . 167
Loss of Control . . . . . . . . . . . . . . . 164
Off-Road Recovery . . . . . . . . . . . 163
Vehicle Load Limits . . . . . . . . . . . 167
Wet Roads . . . . . . . . . . . . . . . . . . . 164
Winter . . . . . . . . . . . . . . . . . . . . . . . . 166
Driving for Better Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . 27

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

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
372 Index
L
Labeling, Tire Sidewall . . . . . . . . . . 273
LampsDaytime Running (DRL) . . . . . . 147
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 150
Exterior Controls . . . . . . . . . . . . . . 145
License Plate . . . . . . . . . . . . . . . . . 260
Malfunction Indicator(Check Engine) . . . . . . . . . . . . . .114
On Reminder . . . . . . . . . . . . . . . . . 122
Reading . . . . . . . . . . . . . . . . . . . . . . 150
Taillamps . . . . . . . . . . . . . . . . . . . . . 259
Lane Change Alert (LCA) . . . . . . . 209
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 211
Lane Keep Assist (LKA) . . . . . . . . 211
Lane Keep Assist Light . . . . . . . . . 118
Lap-Shoulder Belt . . . . . . . . . . . . . . . 61
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 90
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 84
LED Lighting . . . . . . . . . . . . . . . . . . . . 258
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 151
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Illumination Control . . . . . . . . . . . 149 Lighting (cont'd)
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Lights Airbag Readiness . . . . . . . . . . . . . .113
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . .117
Brake System Warning . . . . . . . .116
Charging System . . . . . . . . . . . . . .114
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . .114
Cruise Control . . . . . . . . . . . . . . . . 122
Door Ajar . . . . . . . . . . . . . . . . . . . . . 122
Electric Parking Brake . . . . . . . . .117
Engine Coolant Temperature Warning . . . . . . . 120
Engine Oil Pressure . . . . . . . . . . 120
Flash-to-Pass . . . . . . . . . . . . . . . . . 147
High-Beam On . . . . . . . . . . . . . . . . 122
High/Low Beam Changer . . . . . 147
Hold Mode . . . . . . . . . . . . . . . . . . . . .118
Lane Keep Assist . . . . . . . . . . . . . .118
Low Fuel Warning . . . . . . . . . . . . 121
Mountain Mode . . . . . . . . . . . . . . . .118
Seat Belt Reminders . . . . . . . . . . .112
Security . . . . . . . . . . . . . . . . . . . . . . 121
Service Electric Parking Brake . . . . . . . . . . . . . . . . . . . . . . . .117
Sport Mode . . . . . . . . . . . . . . . . . . . .118 Lights (cont'd)
StabiliTrak OFF . . . . . . . . . . . . . . . .119
Tire Pressure . . . . . . . . . . . . . . . . . 120
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . .119
Traction Off . . . . . . . . . . . . . . . . . . . .119
Vehicle Ready . . . . . . . . . . . . . . . . 121
Locks Automatic Door . . . . . . . . . . . . . . . . . 43
Delayed Locking . . . . . . . . . . . . . . . . 42
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Lockout Protection . . . . . . . . . . . . . . 43
Power Door . . . . . . . . . . . . . . . . . . . . . 42
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Loss of Control . . . . . . . . . . . . . . . . . 164
Low Fuel Warning Light . . . . . . . . . 121
Low-Profile Tires . . . . . . . . . . . . . . . . 273
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 84
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 337
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 332
Maintenance Modes . . . . . . . . . . . . 180
Maintenance Schedule . . . . . . . . . 327