service mode CHEVROLET VOLT 2017 2.G User Guide

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Instruments and Controls 139
TRACTION CONTROL ON
This message displays when the
Traction Control System (TCS) is
turned on.
Airbag System Messages
SERVICE AIRBAG
This message displays if there is a
problem with the airbag system. See
your dealer for service.
Security Messages
SERVICE THEFT ALARM
This message displays if there is a
problem with the alarm. See your
dealer for service.
SERVICE THEFT DETERRENT
SYSTEM
This message displays if there is a
problem with the theft-deterrent
system. See your dealer for service.
Service Vehicle Messages
ENGINE MAINTENANCE XXX%
COMPLETE
This message displays when the
Engine Maintenance Mode is
running. See“Engine Maintenance
Mode (EMM)” underMaintenance
Modes 0183.
ENGINE NOT AVAILABLE
SERVICE SOON
This message displays when the
engine is not available due to a
malfunction that will not allow the
engine to start. The vehicle can
continue to be driven in Electric
Mode until the battery is depleted,
but will have reduced acceleration.
When this message is displayed,
the vehicle should be taken to your
dealer for service as soon as
possible. See Out of Fuel/Engine
Unavailable 0183.
SERVICE AC SYSTEM
This message displays if there is a
problem with the air conditioning
system. See your dealer for service.
SERVICE HEATER SOON
This message displays if there is a
problem with the heater system.
See your dealer for service.
SERVICE POWER STEERING
This message displays and a chime
may sound when there may be a
problem with the power steering
system. If this message displays
and a reduction in steering
performance or loss of power
steering assistance is noticed, see
your dealer for service.
SERVICE VEHICLE SOON
This message displays if there is a
problem with the vehicle. See your
dealer for service. Depending on the
severity of a crash, this message
may come on along with the airbag
readiness light.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Driving and Operating 169
Warning (Continued)
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
. Pass with caution.
. Keep windshield wiping
equipment in good shape. .
Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper
tread depth. See Tires0271.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. See
“Mountain Mode” underDriver
Selected Operating Modes 0181.
Tips include:
. Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
electric drive unit.
. Keep the vehicle in gear when
going down steep or long hills.
{Warning
Coasting downhill in N (Neutral)
or with the vehicle turned off is
dangerous. The brakes will have
(Continued)
Warning (Continued)
to do all the work of slowing down
the vehicle and could become too
hot. Hot brakes may not be able
to slow the vehicle enough to
maintain speed and control. You
could crash. Always have the
vehicle running and in gear
(preferably LOW range) when
going downhill. This will allow the
electric drive unit to assist in
slowing and maintaining speed.
. Drive at speeds to keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills.
Something could be in your lane
(e.g., stalled car, accident).
. Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Driving and Operating 175
Starting and
Operating
New Vehicle Break-In
The vehicle does not require a
break-in period. Vehicle break-in is
performed during manufacturing.
Power Button
The vehicle has an electronic
pushbutton start. The POWER
O
light flashes when the driver door is
open and the vehicle is not on. The
flashing light will eventually time out.
The light is on steady when in ON/RUN power mode. When the vehicle
is turned off, the POWER
Olight
will turn off.
The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the vehicle
will not start, place the RKE
transmitter in the transmitter pocket.
See Remote Keyless Entry (RKE)
System Operation 030.
ON/RUN : This position is for
starting and driving. With the vehicle
off, and the brake pedal applied,
pressing POWER
Oonce will place
the vehicle in ON/RUN. When the
READY light is on in the instrument
cluster, the vehicle is ready to be
driven. This could take up to
15 seconds at extremely cold
temperatures. See Vehicle Ready
Light 0116. The engine will only
start if needed. If the vehicle did not
start, the instrument cluster will
display a screen with inactive fuel
and battery gauges. See Starting
and Stopping the Vehicle 0176. Service Only Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off, and
the brake pedal not applied,
pressing and holding POWER
Ofor
more than five seconds will place
the vehicle in Service Only Mode.
The instruments and audio systems
will operate as they do in ON/RUN,
but the vehicle will not be able to be
driven. The propulsion system will
not start in Service Only Mode.
Press the button again to turn the
vehicle off.
Caution
Service Only Mode will discharge
the 12-volt battery. Do not use
Service Only Mode for an
extended period, or the vehicle
may not start.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Driving and Operating 179
If the vehicle has an uncharged
12-volt battery or a 12-volt battery
with low voltage, try charging or
jump starting the 12-volt battery.
SeeBattery - North America 0256
or Jump Starting - North
America 0305.
If the shift lever cannot be moved
out of P (Park): 1. Apply and maintain the regular brakes.
2. Turn the vehicle on using POWER
O. See Power
Button 0175.
3. Let up on the shift lever and make sure the shift lever is
pushed all the way into
P (Park). 4. Press the shift lever button.
5. Move the shift lever into the
desired gear.
If you still cannot move the shift
lever from P (Park), see your dealer
or a professional towing service.
Parking over Things
That Burn
{Warning
Things that can burn could touch
hot exhaust parts under the
vehicle and ignite. Do not park
over papers, leaves, dry grass,
or other things that can burn.
Electric Vehicle
Operating Modes
System Operation
This vehicle is an Extended Range
Electric Vehicle (EREV). It uses an
electric propulsion system to drive
the vehicle at all times. Electricity is
the vehicle's primary source of
energy, while gasoline is the
secondary source.
The vehicle has two modes of
operation: Electric and Extended
Range. In Electric Mode, the vehicle
is propelled by its electric drive unit
only. It converts electrical energy
into mechanical energy to drive the
wheels. In Extended Range Mode,
both the battery and the engine
power the vehicle. The vehicle's
performance remains nearly the
same in either mode. See Driving
for Better Energy Efficiency 026.

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
Driving and Operating 207
.Always detect short curbs.
If the vehicle is equipped with
perpendicular parking mode, press
and hold
Oduring the search
process to switch the APA parking
mode between perpendicular and
parallel parking.
APA searches for parking spaces to
the right of the vehicle. To search for
a parking space to the left, turn on
the left turn signal.
After completely passing a large
enough space bordered by two
vehicles or other objects, an audible
beep occurs and a red symbol
displays in the DIC.
APA will instruct the vehicle to stop
once a large enough space is found.
Follow the instructions in the DIC.
When instructed to drive in reverse,
shift to R (Reverse) to engage
automatic steering. The steering
wheel will briefly vibrate as a
reminder to remove hands from the
steering wheel. Check surroundings
and continue braking or accelerating
as needed, and be prepared to stop
to avoid vehicles, pedestrians,
or objects.
If the vehicle is in R (Reverse), but
does not steer into the expected
space, this may be because the
system is maneuvering the vehicle
into a previously detected space.
The APA system does not need
service. If the vehicle exceeds 10 km/h
(6 mph), APA is automatically
disengaged and automatic steering
will turn off. A DIC progress arrow
displays the status of the parking
maneuver. Depending on the space
size, additional maneuvers may be
required, and there will be additional
instructions. When changing gears,
allow the automatic steering to
complete before continuing the
parking maneuver. Upon successful
completion of a maneuver, APA will
beep and display a PARKING
COMPLETE message. Place the
vehicle in P (Park).
APA may automatically disengage if:
.
The steering wheel is used by
the driver.
. The maximum allowed speed is
exceeded.
. There is a failure with the APA
system.
. Electronic Stability Control or
antilock brakes are activated.
. A high priority vehicle message
is displayed in the DIC.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
228 Driving and Operating
Lock Feature
A lock can be added to the vehicle
plug for additional security.
FCC Notice
This unit has systems that operate
on a radio frequency that complies
with Part 15 of the Federal
Communications Commission (FCC)
rules and with ICES-003E of
Industry Canada.
FCC rules, ICES-003E of Industry
Canada, and EMC Directive 2004/
108/EC.
Operation is subject to the following
two conditions:
.The device may not cause
interference. .
The device must accept any
interference received, including
interference that may cause
undesired operation of the
device.
Changes or modifications to any of
these systems by other than an
authorized service facility could void
authorization to use this equipment.
Utility Interruption of
Charging
If using AC charging, this vehicle
will respond to remote requests
through OnStar to limit or
completely block electrical power
grid usage for brief time periods.
A utility interruption of charging may
increase AC vehicle charge times.
When electrical grid power is
completely blocked, the vehicle will
delay charging until the utility
interruption has expired. The vehicle
should be left plugged in so that the
vehicle can automatically begin
charging. Changing the charge mode to
Immediate or performing a delayed
charging override will not disable a
utility interruption.
A pop-up will appear in the center
stack display during the key cycle
following any utility interruption. See
“Charging Interrupted or Overridden
Pop-Up”
underProgrammable
Charging 0119.
A message will display on the
instrument cluster indicating that a
utility interruption has occurred. See
Instrument Cluster 0101.
Charging Station
Troubleshooting
If the vehicle does not charge after
being plugged in to a residential
240-volt charging station:
1. Verify that the charge mode is set to Immediate.
2. Verify that the charging station’s circuit breaker has not
been tripped.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
240 Vehicle Care
This vehicle has an airbag system.
Before attempting to do your own
service work, seeAirbag System
Check 075.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0336.
Caution
Even small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
To open the hood:
1. Turn the vehicle off before opening the hood. If the vehicle
is on, the engine will start when
the hood is opened. See
Electric Mode 0180 and
Extended Range Mode 0180.
2. Pull the release handle with
this symbol. It is below the
instrument panel outboard of
the steering wheel.
3. Go to the front of the vehicle
and locate the secondary
release lever under the front
left center of the hood. Push
the secondary hood release
lever to the right to disengage.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
258 Vehicle Care
Electric Drive Unit Shift
Lock Control Function
Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle. It should be
parked on a level surface.
2. Firmly apply the parking brake. See Electric Parking
Brake 0188.
Be ready to apply the regular
brake immediately if the vehicle
begins to move. 3. With the vehicle off and the
brake not applied, press and
hold POWER
Ofor more than
five seconds to place the
vehicle in Service Only Mode.
See Power Button 0175.
Without applying the regular
brake, try to move the shift
lever out of P (Park) with
normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move. Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the Electric Parking Brake (EPB).
.
To check the EPB's holding
ability: With the propulsion
system active and the electric
drive unit in N (Neutral), slowly
remove foot pressure from the
regular brake pedal. Do this until
the vehicle is held by the
EPB only.
. To check the P (Park)
mechanism's holding ability:
With the propulsion system
active, shift to P (Park). Then
release the EPB followed by the
regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear and cracking.
See the Maintenance
Schedule 0326.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9807421) - 2017 - CRC - 11/18/15
Vehicle Care 283
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the
vehicle’s tires or replacing one or
more of the TPMS sensors. The
TPMS sensor matching process
should also be performed after
replacing a spare tire with a road
tire containing the TPMS sensor.
The malfunction light and the DIC
message should go off at the next
ignition cycle. The sensors are
matched to the tire/wheel positions,
using a TPMS relearn tool, in the
following order: driver side front tire,
passenger side front tire, passenger
side rear tire, and driver side rear.
See your dealer for service or to
purchase a relearn tool. A TPMS
relearn tool can also be purchased.
See Tire Pressure Monitor
Sensor Activation Tool at
www.gmtoolsandequipment.com or
call 1-800-GM TOOLS
(1-800-468-6657).There are two minutes to match the
first tire/wheel position, and
five minutes overall to match all four
tire/wheel positions. If it takes
longer, the matching process stops
and must be restarted.
The TPMS sensor matching
process is:
1. Set the parking brake.
2. Place the vehicle in ON/RUN. See Power Button 0175.
3. Make sure the Tire Pressure info page option is turned on.
The info pages on the DIC can
be turned on and off through
the Settings menu. See Driver
Information Center (DIC) 0130.
4. Use the DIC controls on the right side of the steering wheel
to scroll to the Tire Pressure
screen under the DIC
info page.
5. Press and hold the
V(Set/
Reset) button located in the
center of the DIC controls. The horn sounds twice to
signal the receiver is in relearn
mode and the TIRE
LEARNING ACTIVE message
displays on the DIC screen.
6. Start with the driver side front tire.
7. Place the relearn tool against the tire sidewall, near the valve
stem. Then press the button to
activate the TPMS sensor.
A horn chirp confirms that the
sensor identification code has
been matched to this tire and
wheel position.
8. Proceed to the passenger side front tire, and repeat the
procedure in Step 7.
9. Proceed to the passenger side rear tire, and repeat the
procedure in Step 7.
10. Proceed to the driver side rear tire, and repeat the procedure
in Step 7. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor