2012 CHEVROLET VOLT coolant temperature

Black plate (5,1)Chevrolet Volt Owner Manual - 2012
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
b/g:Audio Steering Wheel
Controls or OnStar®
I: Brake System Warning
Light
A: Charge Port Door
":Charging System (12‐Volt
Battery)
I: Cruise Control
f: Electric Parking Brake
d:Electronic Stability
Control (ESC)
B: Engine Coolant Temperature
O:Exterior Lamps
y:Fault
g:First Responder
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
_: High Voltage
j:LATCH System Child
Restraints
[: Leaf
*:Malfunction Indicator Lamp
::Oil Pressure
O:Power
B:Remote Vehicle Start
>:Safety Belt Reminders
g:StabiliTrak®Disable
7:Tire Pressure Monitor
i:Traction Control System (TCS)
Disable
Q: Vehicle Ready
M:Windshield Washer Fluid

Black plate (11,1)Chevrolet Volt Owner Manual - 2012
Keys, Doors, and Windows 2-11
During a remote start, conditions in
which a remote start may be
canceled include:
.Vehicle propulsion system or
high voltage battery fault
conditions.
.Low engine oil pressure.
.Engine coolant temperature that
is too high.
Door Locks
{WARNING
Unlocked doors can be
dangerous.
.Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. The chance of being
thrown out of the vehicle in a
crash is increased if the
doors are not locked. So, all
passengers should wear
safety belts properly and the(Continued)
WARNING (Continued)
doors should be locked
whenever the vehicle is
driven.
.Young children who get into
unlocked vehicles may be
unable to get out. A child can
be overcome by extreme heat
and can suffer permanent
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.
.Outsiders can easily enter
through an unlocked door
when slowing or stopping the
vehicle. Lock the doors to
help prevent this from
happening. Keyless Access:
The RKE
transmitter must be within 1 m (3 ft)
of the door being opened.
To unlock the door from the driver
door, press the lock/unlock button
on the door handle. Press again
within five seconds to unlock all
passenger doors.

Black plate (1,1)Chevrolet Volt Owner Manual - 2012
Instruments and Controls 5-1
Instruments and
Controls
Instrument Panel Overview
Instrument Panel Overview . . . . 5-3
Controls
Steering Wheel Adjustment . . . 5-5
Steering Wheel Controls . . . . . . 5-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Pedestrian Friendly Alert . . . . . . 5-6
Windshield Wiper/Washer . . . . . 5-6
Power Outlets . . . . . . . . . . . . . . . . . 5-8
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 5-8
Instrument Cluster . . . . . . . . . . . . 5-9
Speedometer . . . . . . . . . . . . . . . . 5-14
Odometer . . . . . . . . . . . . . . . . . . . . 5-14
Trip Odometer . . . . . . . . . . . . . . . 5-14
Compass . . . . . . . . . . . . . . . . . . . . 5-14
Battery Gauge (High Voltage) . . . . . . . . . . . . . . . . . . . . 5-14
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-15
Driver Efficiency Gauge . . . . . . 5-15 Total Vehicle Range . . . . . . . . . 5-15
Safety Belt Reminders . . . . . . . 5-16
Airbag Readiness Light . . . . . . 5-17
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-18
Charging System Light (12-Volt Battery) . . . . . . . . . . . . 5-19
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-19
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-22
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-22
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-23
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-23
Sport Mode Light . . . . . . . . . . . . 5-24
Mountain Mode Light . . . . . . . . 5-24
Traction Off Light . . . . . . . . . . . . 5-24
StabiliTrak
®OFF Light . . . . . . . 5-24
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-25
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-25
Tire Pressure Light . . . . . . . . . . 5-25
Engine Oil Pressure Light . . . . 5-26
Low Fuel Warning Light . . . . . . 5-27
Security Light . . . . . . . . . . . . . . . . 5-27 Vehicle Ready Light . . . . . . . . . 5-27
High-Beam On Light . . . . . . . . . 5-27
Lamps On Reminder . . . . . . . . . 5-28
Cruise Control Light . . . . . . . . . 5-28
Door, Hood, or Hatch Open
Light . . . . . . . . . . . . . . . . . . . . . . . 5-28
Information Displays
Center Stack Display . . . . . . . . 5-29
Power Flows . . . . . . . . . . . . . . . . . 5-30
Charging . . . . . . . . . . . . . . . . . . . . . 5-32
Energy Information . . . . . . . . . . 5-43
Clock . . . . . . . . . . . . . . . . . . . . . . . . 5-44
Driver InformationCenter (DIC) . . . . . . . . . . . . . . . 5-45
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-47
Battery and ChargingMessages . . . . . . . . . . . . . . . . . . 5-47
Brake System Messages . . . . 5-48
Cruise Control Messages . . . . 5-49
Door Ajar Messages . . . . . . . . . 5-49
Drive Mode Messages . . . . . . . 5-49
Electric Drive Unit Messages . . . . . . . . . . . . . . . . . . 5-49
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-49
Engine Oil Messages . . . . . . . . 5-50

Black plate (12,1)Chevrolet Volt Owner Manual - 2012
5-12 Instruments and Controls
A.Battery Gauge (High Voltage)
on page 5‑14.
B. Fuel Gauge on page 5‑15.
C. Service Electric Parking Brake
Light on page 5‑23.
D. Security Light on page 5‑27.
E. Engine Coolant Temperature
Warning Light on page 5‑25.
F. Charging System Light (12-Volt
Battery) on page 5‑19.
G. Engine Oil Pressure Light on
page 5‑26.
H. High-Beam On Light on
page 5‑27.
I. Second Row Passenger Safety Belt Reminder Light. See Safety
Belt Reminders on page 5‑16.
J. Turn and Lane-Change Signals
on page 6‑4.
K. Compass on page 5‑14.
L. Speedometer on page 5‑14. M.
Cruise Control Light on
page 5‑28.
N. Electric Parking Brake Light on
page 5‑22.
O. Door, Hood, or Hatch Open
Light on page 5‑28.
P. Low Fuel Warning Light on
page 5‑27.
Q. Antilock Brake System (ABS)
Warning Light on page 5‑23.
R. Electric Drive Unit Positions. See Electric Drive Unit on
page 9‑31.
S. Driver Efficiency Gauge on
page 5‑15.
T. Brake System Warning Light on
page 5‑22.
U. Driver Safety Belt Reminder Light. See Safety Belt
Reminders on page 5‑16.
V. Airbag Readiness Light on
page 5‑17. W.
Total Vehicle Range on
page 5‑15.
X. Vehicle Ready Light on
page 5‑27.
Y. StabiliTrak
®OFF Light on
page 5‑24.
Z. Driver Information Center (DIC)
on page 5‑45.
AA. Traction Off Light on page 5‑24.
AB. Sport Mode Light on page 5‑24
and Mountain Mode Light on
page 5‑24.
AC. Lamps On Reminder on
page 5‑28.
AD. Odometer on page 5‑14.
AE. Malfunction Indicator Lamp on
page 5‑19.
AF. Traction Control System (TCS)/
StabiliTrak
®Light on page 5‑25.
AG. Tire Pressure Light on
page 5‑25.

Black plate (25,1)Chevrolet Volt Owner Manual - 2012
Instruments and Controls 5-25
Traction Control System
(TCS)/StabiliTrak®Light
This light comes on briefly while
starting the vehicle.
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, there could be a
problem with the TCS/StabiliTrak
system and the vehicle might need
service. When this warning light is
on, the TCS/StabiliTrak system is off
and does not limit wheel spin.
The light flashes if the system is
active and is working to assist the
driver with directional control of the
vehicle in difficult driving conditions.
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.
SeeEngine Overheating on
page 10‑21 for more information.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the vehicle is
in ON/RUN. 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. See
Tire Messages on page 5‑55 for
more information. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the Tire
and Loading Information Label. See
Tires on page 10‑44 for more
information.

Black plate (49,1)Chevrolet Volt Owner Manual - 2012
Instruments and Controls 5-49
Cruise Control Messages
CRUISE SET TO XXX
This message displays when the
cruise control is set and shows the
speed it was set to. SeeCruise
Control on page 9‑40 for more
information.
Door Ajar Messages
DOOR(S) OPEN, HOOD OPEN,
HATCH OPEN
A symbol will appear on the display
showing the area that is open. See
Door, Hood, or Hatch Open Light on
page 5‑28.
Drive Mode Messages
MOUNTAIN MODE NOT
AVAILABLE
This message displays when in
Mountain Mode and the mode
becomes unavailable. See “Mountain Mode”
underDriver
Selected Operating Modes on
page 9‑25.
SPORT MODE NOT
AVAILABLE
This message displays when in
Sport Mode and the mode becomes
unavailable. See “Sport Mode”
under Driver Selected Operating
Modes on page 9‑25.
Electric Drive Unit
Messages
SHIFT TO PARK
This message displays when the
vehicle should be shifted to
P (Park). This may appear when
attempting to turn off the vehicle
when it is not in P (Park).
Engine Cooling System
Messages
ENGINE
OVERHEATED —REDUCE
SPEED
This message displays when the
engine coolant temperature or
engine oil is too hot. Reduce speed
and allow the vehicle to cool down.
ENGINE
OVERHEATED —TURN
VEHICLE OFF
This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.

Black plate (16,1)Chevrolet Volt Owner Manual - 2012
10-16 Vehicle Care
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
temperature rises above this
temperature, the battery cooling
system turns on the air conditioning
compressor and cools the coolant
until the correct temperature is
reached. If the temperature falls
below this temperature, a high
voltage heater, located in the
battery, heats the coolant until the
correct temperature is reached.
What to Use
The high voltage battery 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
every 5 years or 240 000 km
(150,000 mi), whichever occurs first.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The high voltage battery coolant
reservoir is located on the
passenger side of the engine
compartment. SeeEngine
Compartment Overview on
page 10‑8 for more information on
location.
Check to see if coolant is visible in
the high voltage battery 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 high voltage battery coolant
should only be serviced by a
qualified technician.

Black plate (17,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-17
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
every 5 years or 240 000 km
(150,000 mi), whichever occurs first.
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
on the driver side of the engine
compartment. See
Engine
Compartment Overview on
page 10‑8 for more information on
location.
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.