2018 CHEVROLET VOLT coolant change

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Introduction 3
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: Shown when the owner ’s
manual has additional instructions
or information.
*: Shown when the service
manual has additional instructions
or information.
0: Shown when there is more
information on another page —
“see page.” Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. See the
features in this manual for
information.
9:
Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
$:Brake System Warning Light
":Charging System (12-Volt
Battery)
I: Cruise Control
`:Do Not Puncture
^:Do Not Service
B:Engine Coolant Temperature
O:Exterior Lamps
g: First Responder
_:Flame/Fire Prohibited
.:Fuel Gauge
+: Fuses
3:Headlamp High/Low-Beam
Changer

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Instruments and Controls 135
system monitoring the oil life,
additional maintenance is
recommended. SeeMaintenance
Schedule 0327.
Remember, the Oil Life display must
be reset after each oil change. It will
not reset itself. Also, be careful not
to reset the Oil Life display
accidentally at any time other than
when the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system, press and
hold
Vfor several seconds while
the Oil Life display is active. See
Engine Oil Life System 0242.
Tire Pressure : Shows the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber.
See Tire Pressure Monitor System
0 280 andTire Pressure Monitor
Operation 0281. Average Speed :
Shows the
average speed of the vehicle in
kilometers per hour (km/h) or miles
per hour (mph). This average is
calculated based on the various
vehicle speeds recorded since the
last reset of this value. The average
speed can be reset by pressing and
holding
Vwhile this display is
active.
Timer : This display can be used as
a timer. To start the timer, press
V
while this display is active. The
display will show the amount of time
that has passed since the timer was
last reset. To stop the timer, press
V
briefly while this display is active
and the timer is running. To reset
the timer to zero, press and hold
V
while this display is active.
Speed Limit : Shows the current
speed limit. The information for this
page comes from a roadway
database.
Follow Distance Indicator : The
current follow time to the vehicle
ahead is displayed as a time value
on this page. Coolant Temperature :
Shows the
engine coolant temperature in either
degrees Celsius (°C) or degrees
Fahrenheit (°F).
Blank Page : The Blank Page
display allows for no information to
be displayed in the cluster info
display areas.

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
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
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
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