Page 89 of 516

Black plate (33,1)Chevrolet Volt Owner Manual - 2011
Seats and Restraints 3-33
Passenger Sensing
System
The vehicle has a passenger
sensing system for the right front
passenger position. The passenger
airbag status indicator will be visible
on the overhead console when the
vehicle is started.
The words ON and OFF are visible
during the system check. When the
system check is complete, either
the word ON or OFF will be visible.
SeePassenger Airbag Status
Indicator on page 5‑20. The passenger sensing system
turns off the right front passenger
frontal airbag and the knee airbag
on the passenger side, under
certain conditions. The driver
airbag, the driver knee airbag, the
seat-mounted side impact airbags,
and the roof-rail airbags are not
affected by the passenger sensing
system.
The passenger sensing system
works with sensors that are part
of the right front passenger seat.
The sensors are designed to detect
the presence of a properly seated
occupant and determine if the right
front passenger frontal airbag and
passenger knee airbag should be
enabled (may inflate) or not.
According to accident statistics,
children are safer when properly
secured in a rear seat in a correct
child restraint for their weight
and size.
We recommend that children be
secured in a rear seat, including:
an infant or a child riding in a
rear-facing child restraint; a child
riding in a forward-facing child seat;
an older child riding in a booster
seat; and children, who are large
enough, using safety belts.
A label on the sun visor says,
“Never put a rear-facing child seat
in the front.”
This is because the risk
to the rear-facing child is so great,
if the airbag deploys.
Page 90 of 516

Black plate (34,1)Chevrolet Volt Owner Manual - 2011
3-34 Seats and Restraints
{WARNING
A child in a rear-facing child
restraint can be seriously
injured or killed if the right
front passenger airbag inflates.
This is because the back of the
rear-facing child restraint would
be very close to the inflating
airbag. A child in a forward-facing
child restraint can be seriously
injured or killed if the right front
passenger airbag inflates and the
passenger seat is in a forward
position.
Even if the passenger sensing
system has turned off the right
front passenger airbag(s), no
system is fail-safe. No one can
guarantee that an airbag will not
deploy under some unusual
circumstance, even though
the airbag(s) are turned off.(Continued)
WARNING (Continued)
Secure rear-facing child restraints
in a rear seat, even if the
airbag(s) are off. If you secure a
forward-facing child restraint in
the right front seat, always move
the front passenger seat as far
back as it will go. It is better to
secure the child restraint in a
rear seat.
The passenger sensing system is
designed to turn off the right front
passenger airbag and passenger
knee airbag if:
.The right front passenger seat is
unoccupied.
.The system determines that
an infant is present in a child
restraint.
.A right front passenger takes
his/her weight off of the seat for
a period of time.
.Or, if there is a critical problem
with the airbag system or the
passenger sensing system.
When the passenger sensing
system has turned off the right
front passenger frontal airbag and
passenger knee airbag, the off
indicator will light and stay lit to
remind you that the airbags are
off. See Passenger Airbag Status
Indicator on page 5‑20.
The passenger sensing system is
designed to turn on (may inflate) the
right front passenger frontal airbag
and passenger knee airbag anytime
the system senses that a person of
adult size is sitting properly in the
right front passenger seat.
When the passenger sensing
system has allowed the airbags to
be enabled, the on indicator will light
and stay lit to remind you that the
airbags are active.
Page 91 of 516

Black plate (35,1)Chevrolet Volt Owner Manual - 2011
Seats and Restraints 3-35
For some children, including
children in child restraints,
and for very small adults, the
passenger sensing system may
or may not turn off the right front
passenger frontal airbag and
passenger knee airbag, depending
upon the person’s seating posture
and body build. Everyone in the
vehicle who has outgrown child
restraints should wear a safety
belt properly —whether or not
there is an airbag for that person.
{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light on page 5‑19 for more
information, including important
safety information.
If the On Indicator is Lit for a
Child Restraint
If a child restraint has been installed
and the on indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such as blankets,
cushions, seat covers, seat
heaters, or seat massagers.
4. Reinstall the child restraint following the directions
provided by the child restraint
manufacturer and refer to
Securing Child Restraints
(Rear Seat) on page 3‑57 or
Securing Child Restraints (Front
Passenger Seat) on page 3‑60. 5. If, after reinstalling the child
restraint and restarting the
vehicle, the on indicator is
still lit, turn the vehicle off.
Then slightly recline the vehicle
seatback and adjust the seat
cushion, if adjustable, to make
sure that the vehicle seatback
is not pushing the child restraint
into the seat cushion.
Also make sure the child
restraint is not trapped under
the vehicle head restraint.
If this happens, adjust the head
restraint. See Head Restraints
on page 3‑2.
6. Restart the vehicle.
The passenger sensing system
may or may not turn off the
airbags for a child in a child
restraint depending upon the
child's seating posture and body
build. It is better to secure a
child restraint in a rear seat.
Page 92 of 516

Black plate (36,1)Chevrolet Volt Owner Manual - 2011
3-36 Seats and Restraints
If the Off Indicator is Lit for an
Adult-Size Occupant
If a person of adult size is sitting
in the right front passenger seat,
but the off indicator is lit, it could be
because that person is not sitting
properly in the seat. If this happens,
use the following steps to allow thesystem to detect that person and
enable the right front passenger
frontal airbag and passenger
knee airbag:
1. Turn the vehicle off.
2. Remove any additional material
from the seat, such as blankets,
cushions, seat covers, seat
heaters, or seat massagers.
3. Place the seatback in the fully upright position.
4. Have the person sit upright in the seat, centered on the seat
cushion, with legs comfortably
extended.
5. Restart the vehicle and have the person remain in this position for
two to three minutes after the on
indicator is lit.
Additional Factors Affecting
System Operation
Safety belts help keep the
passenger in position on the
seat during vehicle maneuvers
and braking, which helps the
passenger sensing system maintain
the passenger airbag status.
See “Safety Belts” and“Child
Restraints” in the Index for
additional information about the
importance of proper restraint use.
A thick layer of additional material,
such as a blanket or cushion,
or aftermarket equipment such
as seat covers, seat heaters,
and seat massagers can affect
how well the passenger sensing
system operates. We recommend
that you not use seat covers or
other aftermarket equipment
except when approved by GM
for your specific vehicle.
Page 93 of 516

Black plate (37,1)Chevrolet Volt Owner Manual - 2011
Seats and Restraints 3-37
SeeAdding Equipment to the
Airbag-Equipped Vehicle on
page 3‑38 for more information
about modifications that can affect
how the system operates.
A wet seat can affect the
performance of the passenger
sensing system. Here is how:
.The passenger sensing system
may turn off the passenger
frontal airbag and passenger
knee airbag when liquid is
soaked into the seat. If this
happens, the off indicator will
be lit, and the airbag readiness
light on the instrument panel
will also be lit.
.Liquid pooled on the seat that
has not soaked in may make it
more likely that the passenger
sensing system will enable
(turn on) the passenger frontal
airbag and passenger knee
airbag while a child restraint or
child occupant is on the seat.
If the passenger frontal airbag
and passenger knee airbag are
turned on, the on indicator will
be lit.
If the passenger seat gets wet, dry
the seat immediately. If the airbag
readiness light is lit, do not install
a child restraint or allow anyone
to occupy the seat. See Airbag
Readiness Light on page 5‑19
for important safety information. The on indicator may be lit if
an object, such as a briefcase,
handbag, grocery bag, laptop or
other electronic device, is put on
an unoccupied seat. If this is not
desired remove the object from
the seat.
{WARNING
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the passenger
sensing system.
Page 94 of 516

Black plate (38,1)Chevrolet Volt Owner Manual - 2011
3-38 Seats and Restraints
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicle
should be serviced. There are
parts of the airbag system in
several places around the vehicle.
Your dealer and the service manual
have information about servicing
the vehicle and the airbag system.
To purchase a service manual,
seeService Publications Ordering
Information on page 13‑12.
{WARNING
For up to 10 seconds after the
vehicle is turned off and the
12‐volt battery is disconnected,
an airbag can still inflate during
improper service. You can be
injured if you are close to an
airbag when it inflates. Avoid
yellow connectors. They are
probably part of the airbag
system. Be sure to follow proper
service procedures, and make
sure the person performing work
for you is qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Q: Is there anything I might add
to or change about the vehicle
that could keep the airbags
from working properly?
A: Yes. If you add things that
change the vehicle's frame,
bumper system, height, front end
or side sheet metal, they may
keep the airbag system from
working properly. Changing or
moving any parts of the front
seats, safety belts, the airbag
sensing and diagnostic module,
steering wheel, instrument
panel, roof-rail airbag modules,
ceiling headliner or pillar garnish
trim, overhead console, front
sensors, side impact sensors,
rollover sensor module, or airbag
wiring can affect the operation of
the airbag system.
Page 95 of 516

Black plate (39,1)Chevrolet Volt Owner Manual - 2011
Seats and Restraints 3-39
In addition, the vehicle has a
passenger sensing system
for the right front passenger
position, which includes sensors
that are part of the passenger
seat. The passenger sensing
system may not operate properly
if the original seat trim is
replaced with non-GM covers,
upholstery or trim, or with
GM covers, upholstery or
trim designed for a different
vehicle. Any object, such as
an aftermarket seat heater
or a comfort enhancing pad
or device, installed under or on
top of the seat fabric, could also
interfere with the operation of
the passenger sensing system.
This could either prevent proper
deployment of the passengerairbag(s) or prevent the
passenger sensing system
from properly turning off
the passenger airbag(s).
See
Passenger Sensing
System on page 3‑33.
If you have questions,
call Customer Assistance.
The phone numbers and
addresses for Customer
Assistance are in Step Two
of the Customer Satisfaction
Procedure in this manual.
See Customer Satisfaction
Procedure on page 13‑1.
If the vehicle has rollover
roof‐rail airbags, see Different
Size Tires and Wheels on
page 10‑65 for additional
important information. Q: Because I have a disability,
I have to get my vehicle
modified. How can I find out
whether this will affect my
airbag system?
A: If you have questions,
call Customer Assistance.
The phone numbers and
addresses for Customer
Assistance are in Step Two
of the Customer Satisfaction
Procedure in this manual.
See Customer Satisfaction
Procedure on page 13‑1.
In addition, the dealer and the
service manual have information
about the location of the airbag
sensors, sensing and diagnostic
module, and airbag wiring.
Page 96 of 516

Black plate (40,1)Chevrolet Volt Owner Manual - 2011
3-40 Seats and Restraints
Airbag System Check
The airbag system does not need
regularly scheduled maintenance
or replacement. Make sure the
airbag readiness light is working.
SeeAirbag Readiness Light on
page 5‑19 for more information.
Notice: If an airbag covering is
damaged, opened, or broken,
the airbag may not work properly.
Do not open or break the airbag
coverings. If there are any
opened or broken airbag covers,
have the airbag covering and/or
airbag module replaced. For the
location of the airbag modules,
see What Makes an Airbag
Inflate? on page 3‑30. See your
dealer for service.
Replacing Airbag System
Parts after a Crash
{WARNING
A crash can damage the
airbag systems in the vehicle.
A damaged airbag system
may not work properly and
may not protect you and your
passenger(s) in a crash, resulting
in serious injury or even death.
To help make sure the airbag
systems are working properly
after a crash, have them
inspected and any necessary
replacements made as soon
as possible. If an airbag inflates, you will need
to replace airbag system parts.
See your dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly.
Have the vehicle serviced right
away. See
Airbag Readiness Light
on page 5‑19 for more information.