
Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
152 Lighting
There is a light sensor on top of the
instrument panel. Do not cover the
sensor, otherwise the headlamps
will come on when they are not
needed.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic
headlamp system changes to the
DRL. During that delay, the
instrument cluster may not be as
bright as usual. Make sure the
instrument panel brightness control
is in the full bright position. See
Instrument Panel Illumination
Control0153.
When it is bright enough outside,
the headlamps will turn off or may
change to Daytime Running
Lamps (DRL). The automatic headlamp system
turns off when the exterior lamp
control is turned to
Oor the ignition
is off.
Lights On with Wipers
If the windshield wipers are
activated in daylight with the vehicle
pushbutton start in the ON/RUN
position, and the exterior lamp
control is in AUTO, the headlamps,
parking lamps, and other exterior
lamps come on. The transition time
for the lamps coming on varies
based on wiper speed. When the
wipers are not operating, these
lamps turn off. Move the exterior
lamp control to
Oor;to disable
this feature.
Hazard Warning Flashers
|: Press to make the front and
rear turn signal lamps flash on and
off. This warns others that you are
having trouble.
Press
|again to turn the
flashers off.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Lighting 153
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
will flash in the direction of the turn
or lane change.Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is complete. If the lever is
moved momentarily to the lane
change position, the arrow will flash
three times.
The lever returns to its starting
position when it is released.
If after signaling a turn or lane
change, the arrow flashes rapidly or
does not come on, a signal bulb
may be burned out.
Have any burned out bulbs
replaced. If a bulb is not burned out,
check the fuse. See
Instrument
Panel Fuse Block 0266.
Interior Lighting
Instrument Panel
Illumination Control
The brightness of the instrument
panel cluster display, infotainment
display and controls, steering wheel
controls, and all other illuminated
controls, as well as feature status
indicators can be adjusted.
The knob for this feature is on the
instrument panel beside the steering
column.
Turn the knob clockwise or
counterclockwise to brighten or dim
the lights.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Climate Controls 159
eco Mode :Press eco to select this
mode and the indicator will be lit.
The air conditioning and electric
heat are controlled to balance
comfort with fuel economy. As long
as
0MAX is not selected, the
vehicle electric range or fuel
economy will decrease less than in
MAX mode, but will result in
moderate comfort.
MAX Mode : Press MAX to select
this mode and the indicator will be
lit. The air conditioning and electric
heat are controlled to reach the best
comfort level based on the
temperature setting selected. In this
mode, vehicle electric range or fuel
economy will decrease depending
on the amount of energy required to
reach the best comfort levels.
The air conditioning and electric
heat could be on at the same time
when dehumidification is required in
eco or MAX modes.
The air conditioning may also run if
0MAX is selected, regardless of
the climate mode. Automatic Operation
The system automatically controls
the fan speed, air delivery mode,
and recirculation to heat or cool the
vehicle to the selected temperature.
When the AUTO indicator light is
on, the system is in full automatic
operation. If the air delivery mode or
fan speed setting is adjusted, the
AUTO indicator turns off and the
selected settings display.
For automatic operation:
1. Press AUTO.
2. Set the temperature. An initial setting of 23 °C (74 °F) is
recommended. Allow the
system time to stabilize. Adjust
the temperature as needed.
Manual Operation
O: Press to turn the climate control
system on and off.
A: Turn the knob clockwise or
counterclockwise to increase or
decrease the fan speed. The fan
speed setting appears on the
display screen. Manually adjusting
the fan speed cancels automatic fan control. Press AUTO to return to
automatic operation. Press
Oto turn
off the fan and the climate control
system.
If the power is turned off while in
eco or MAX mode, the display will
automatically change to Fan Only
mode. If the fan speed is increased
or AUTO is pressed, the climate
mode will revert back to eco or
MAX mode.
Temperature Control : Turn the
knob clockwise or counterclockwise
to increase or decrease the
temperature setting.
Air Delivery Mode Control :
Press
dandcor a
combination of the buttons to
change the direction of the airflow.
The indicator light in the button will
turn on. The current mode appears
in the display screen.
Pressing any of the air delivery
buttons cancels automatic air
delivery control and the direction of
the airflow can be controlled
manually. Press AUTO to return to
automatic operation.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
182 Driving and Operating
Each time the vehicle is started, it
will return to Normal Mode.
Mountain Mode
Mountain Mode should be selected
at the beginning of a trip before
climbing steep, uphill grades and
when expecting to drive in very hilly
or mountainous terrain. This mode
maintains a reserve electrical
charge of the high voltage battery to
provide better grade climbing
performance. While driving in
Mountain Mode, the vehicle will
have less responsive acceleration.Mountain Mode will not change
normal vehicle braking performance
for steep downhill grades. See
Hill
and Mountain Roads 0169 and
Electric Drive Unit 0186.
Press MODE to select Mountain
Mode. If steep hill driving is
expected, it is recommended to
select Mountain Mode at least
20 minutes before driving on steep
grades. This will allow the vehicle
time to build a sufficient battery
charge reserve.
If Mountain Mode is not selected for
these conditions, propulsion power
may be reduced and the engine
speed may increase. See
Propulsion Power Messages 0138.
The engine may run when Mountain
Mode is selected, depending on the
high voltage battery charge, to build
reserve battery charge for uphill
climbs. If Mountain Mode is entered
with a sufficient battery charge
reserve, the battery charge reserve
will appear grayed out and any
battery charge reserve still unused
upon exiting Mountain Mode will
return to normal appearance. Press Mode again to return to
Normal Mode and it becomes active
after three seconds.
Each time the vehicle is started, it
will return to Normal Mode to
maintain a smaller battery charge
reserve for normal driving.
Hold Mode
Use Hold Mode on a trip where it is
expected that all of the electric
charge will be depleted. Use Hold
Mode mainly during highway or high
speed driving to maximize both EV
miles and fuel efficiency.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Driving and Operating 183
Hold Mode is only available when
the vehicle is in Electric Mode. This
mode places the remaining battery
charge into a reserve for the driver
to use as desired. Selecting this
mode transitions the vehicle to
Extended Range Mode to maintain
the battery charge reserve.
Upon exiting Hold Mode, the
reserved battery charge becomes
available again and the vehicle
returns to Electric Mode. If the
transition is from Hold Mode directly
to Mountain Mode, the electric
range displayed adjusts for the
Mountain Mode charge reserve.
Hold Mode will not change normal
vehicle acceleration or braking
performance.
Press MODE to select Hold Mode.
Press MODE again to return to
Normal Mode and it becomes active
after three seconds.
Each time the vehicle is started, it
will return to Normal Mode.Out of Fuel/Engine
Unavailable
If the vehicle runs out of fuel, or the
engine will not start due to a
malfunction, the vehicle can
continue to be driven in Electric
Mode until the current charge is
depleted. The vehicle will have less
responsive acceleration. DIC
messages indicate reduced
propulsion power, that the engine is
not available, and the need for fuel
or service.
Once the vehicle is refueled, or the
malfunction is corrected, the engine
will start the next time the vehicle is
turned on to perform a self test, and
DIC messages will not be displayed.
Once the engine starts successfully,
normal operation will continue in
either Electric or Extended Range
Mode. The engine may stop running
after the self test is completed,
based on the current mode of
operation. SeeFuel System
Messages 0135 andService
Vehicle Messages 0139.
Maintenance Modes
Engine Maintenance Mode (EMM)
EMM runs the engine to keep it in
good working condition after
approximately six weeks of no or
very limited engine operation. EMM
will force the engine to run, even if
there is a charge to power the
vehicle.
When EMM is needed, the EMM
Request screen appears on the
center stack display at vehicle start.
If Yes is selected, EMM will begin.
The engine will not start until after a
short delay once shifted into
D (Drive). The engine will run for a
set amount of time without turning

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
188 Driving and Operating
Brakes
Antilock Brake
System (ABS)
This vehicle has ABS, an advanced
electronic braking system that helps
prevent a braking skid.
When propulsion is active and the
vehicle begins to drive away, ABS
checks itself. A momentary motor or
clicking noise might be heard while
this test is going on, and it might
even be noticed that the brake
pedal moves a little. This is normal.
If there is a problem with ABS, this
warning light stays on. SeeAntilock
Brake System (ABS) Warning
Light 0112.
If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to avoid a sudden obstacle, a
computer senses that the wheels
are slowing down. If one of the
wheels is about to stop rolling, the
computer will separately work the
brakes at each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
the driver steer around the obstacle
while braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls
braking pressure accordingly.
Remember: ABS does not change
the time needed to get a foot up to
the brake pedal or always decrease
stopping distance. If you get too
close to the vehicle in front of you,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room up ahead to
stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly and let
ABS work. You might hear the ABS
pump or motor operating and feel
the brake pedal pulsate, but this is
normal.
Braking in Emergencies
ABS allows the driver to steer and
brake at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Electric Parking Brake

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 197
{Warning
ACC will not detect or brake for
children, pedestrians, animals,
or other objects.
Do not use ACC when:. On winding and hilly roads
or when the sensors are
blocked by snow, ice, or dirt.
The system may not detect
a vehicle ahead. Keep the
entire front of the vehicle
clean.
. Visibility is low, such as in
fog, rain, or snow
conditions. ACC
performance is limited under
these conditions.
. On slippery roads where
fast changes in tire traction
can cause excessive
wheel slip.
5:Press to turn the system on or
off. A white cruise control indicator
comes on in the instrument cluster.
+RES : Press briefly to resume the
previous set speed or to increase
vehicle speed if ACC is already
activated. To increase speed by
1 km/h (1 mph), briefly press +RES.
To increase speed to the next
5 km/h (5 mph) mark on the
speedometer, press and hold +RES,
then release.
−SET : Press briefly to set the
speed and activate ACC or to
decrease vehicle speed if ACC is
already activated. To decrease speed by 1 km/h (1 mph), briefly
press SET−. To decrease speed to
the next 5 km/h (5 mph) mark on the
speedometer, press and hold SET−,
then release.
*:
Press to disengage ACC
without erasing the set speed from
memory.
[: Press to select a following gap
time (or distance) setting for ACC of
Far, Medium, or Near.
Setting Adaptive Cruise Control
If ACC is on when not in use,
5
could get pressed and ACC could
become active when not desired.
Keep ACC off when it is not
being used.
Select the set speed desired for
cruise. This is the vehicle speed
when no vehicle is detected in
its path.
ACC will not set at a speed less
than 25 km/h (15 MPH), although it
can be resumed when driving at
lower speeds.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Driving and Operating 199
.Press and hold -SET until the
desired lower speed is reached,
then release it.
. To decrease the vehicle speed in
smaller increments, briefly press
-SET. For each press, the
vehicle goes about 1 km/h or
(1 mph) slower.
. To decrease the vehicle speed in
larger increments, press and
hold -SET, then release. For
each press, the vehicle goes
about 5 km/h or (5 mph) slower.
Selecting the Follow Distance
When a slower moving vehicle is
detected ahead within the selected
following gap, ACC will adjust the
vehicle's speed and attempt to
maintain the follow distance gap
selected.
Press
[on the steering wheel to
adjust the following gap. When
pressed, the current gap setting
displays briefly on the instrument
cluster. Subsequent presses cycle
the gap button through three settings: Far, Medium, or Near. The
gap setting will be maintained until it
is changed.
Since each gap setting corresponds
to a following time (Far, Medium,
or Near), the following distance will
vary based on vehicle speed. The
faster the vehicle speed, the further
back your vehicle will follow a
vehicle detected ahead. Consider
traffic and weather conditions when
selecting the following gap. The
range of selectable gaps may not be
appropriate for all drivers and
driving conditions.
Changing the gap setting
automatically changes the alert
timing sensitivity (Far, Medium,
or Near) for the Forward Collision
Alert (FCA) feature. See
Forward
Collision Alert (FCA) System 0208.
Alerting the Driver
If ACC is engaged, driver action
may be required when ACC cannot
apply sufficient braking because of
approaching a vehicle too rapidly.
When this condition occurs, eight
beeps will sound from the front.
See Defensive Driving 0166.
Approaching and Following a
Vehicle
The vehicle ahead indicator is in the
instrument cluster.
The vehicle ahead symbol only
displays when a vehicle is detected
in your vehicle’s path moving in the
same direction.
If this symbol is not displaying, ACC
will not respond to or brake to
vehicles ahead.
ACC automatically slows the vehicle
down and adjusts vehicle speed to
follow the vehicle in front at the