ECU TOYOTA 86 2023 User Guide

351-1. For safe use
1
For safety and security
WARNING
●Do not put any objects under
the driver’s side of the instru-
ment panel. If the SRS knee air-
bag deploys, those objects
could interfere with its proper
operation and could be pro-
pelled inside the vehicle, caus-
ing injury.
●Do not attach accessories to the
windshield, or fit an extra-wide
mirror over the inside rear view
mirror. If the SRS airbag
deploys, those objects could
become projectile s that could
seriously injure vehicle occu-
pants.
●Do not attach accessories to the
door trim or near either SRS
side airbags and do not place
objects near the SRS side air-
bags. In the event of SRS side
airbag deployment, they could
be propelled dangerously
toward the vehicle’s occupants
and cause injuries.
●Do not attach a hands-free
microphone or any other acces-
sory to a front pillar, a center pil-
lar, a rear pillar, the windshield,
a side window, or any other
cabin surface that would be
near a deploying SRS curtain
shield airbag. A hands-free
microphone or other accessory
in such a location could be pro-
pelled through the cabin with
great force by the curtain shield
airbag, or it could prevent cor-
rect deployment o f the curtain
shield airbag. In either case, the
result could be serious injuries.
●Do not put any kind of clothes or
other objects over the front
seatback and do not attach
labels or stickers to the front
seat surface on or near the SRS
side airbag. They could prevent
proper deployment of the SRS
side airbag, reducing protection
available to th e front seat’s
occupant.
●Do not install a seat cover
unless it is a genuine Toyota
seat cover exclusively designed
for use with the SRS airbag.
Even when using a genuine
Toyota seat cover, the SRS side
airbag system may not function
normally if the seat cover is not
installed correctly.

361-1. For safe use
WARNING
■General Precautions regard-
ing SRS Airbag System and
Children
●Place children in the rear seat
properly restrained at all times.
The SRS airbag deploys with
considerable speed and force
and can injure or even kill chil-
dren, especially if they are not
restrained or improperly
restrained. Because children
are lighter and weaker than
adults, their risk of being injured
from deployment is greater.
For that reason, we strongly
recommend that ALL children
(including those in child restraint
systems) sit in the REAR seat
properly restrained at all times
in a child restraint device or in a
seatbelt, whichever is appropri-
ate for the child’s age, height
and weight.
Secure ALL types of child
restraint systems (including for-
ward facing child restraint sys-
tem) in the REAR seats at all
times.
According to accident statistics,
children are safer when properly
restrained in the rear seating
positions than in the front seat-
ing positions.
For instructions and precautions
concerning the child restraint
system, refer to P.64.
●NEVER INSTALL A CHILD
RESTRAINT SYSTEM IN THE
FRONT SEAT. DOING SO
RISKS SERIOUS INJURY OR
DEATH TO THE CHILD BY
PLACING THE CHILD’S HEAD
TOO CLOSE TO THE SRS
AIRBAG.
●Never allow a child to stand up
or kneel on the front passen-
ger’s seat. The SRS airbag
deploys with considerable force
and can injure o r even kill the
child.
●Never hold a child on your lap or
in your arms. The SRS airbag
deploys with considerable force
and can injure o r even kill the
child.
●Never allow a child to do the fol-
lowing.
• Kneel on any passenger’s seat facing the side window

371-1. For safe use
1
For safety and security
WARNING

391-1. For safe use
1
For safety and security
This vehicle is equipped with a
Toyota advanced frontal airbag
system that complies with the
advanced frontal airbag require-
ments in the amended Federal
Motor Vehicle Safety Standard
(FMVSS) No. 208.
The Toyota advanced frontal air-
bag system automatically deter-
mines the deployment force of
the driver’s SRS frontal airbag at
the time of deployment as well
as whether or not to activate the
front passenger’s SRS frontal
airbag and, if activated, the
deployment force of the SRS
frontal airbag at the time of
deployment.
Always wear your seatbelt. The
Toyota advanced frontal airbag
system is a supplemental
restraint system and must be
used in combination with a seat-
belt. All occupants should wear
a seatbelt or be seated in an appropriate child restraint sys-
tem.
For the locations of the SRS air-
bags, refer to P.29.
In a moderate to severe frontal
collision, the following compo-
nents deploy.

SRS frontal airbag for driver
 SRS frontal airbag for front
passenger
 SRS curtain shield airbag
*
SRS knee airbag for driver
*: When an offset frontal collision
that is severe enough to deploy
the front airbag occurs.
These components supplement
the seatbelts by reducing the
impact to the occupant’s head,
chest and knees.
■Driver’s SRS frontal airbag
The driver’s SRS frontal airbag
uses a dual stage inflator. The
inflator operates in different
ways depending on the severity
of impact.
■Front passenger’s SRS
frontal airbag
The front passenger’s SRS fron-
tal airbag uses a dual stage
inflator. The inflator operates in
different ways depending on the
severity of impact.
■Occupant detection system
The occupant detection system
sensors are installed between
the seat and seat rails, and
NOTICE
• Between the rear seat cushion and rear wheel house on each
side
●In the event that the SRS airbag
is deployed, replacement of the
system should be performed
only by an auth orized Toyota
dealer. When the components
of the SRS airbag system are
replaced, use only genuine Toy-
ota parts.
Toyota Advanced Frontal
Airbag System

411-1. For safe use
1
For safety and security
Passenger’s sideSRS AIRBAG deploy as soon
as a collision occurs.
After deployment, SRS AIR-
BAG start to deflate immedi-
ately so that the driver’s
vision is not obstructed.
The SRS airbags can function
only when the engine switch is
in ON.
The Toyota advanced frontal air-
bag system is designed to deter-
mine the activation or
deactivation condition of the
front passenger’s SRS frontal
airbag depending on the charac-
teristic of item(s) or person on
the front passenger’s seat moni-
tored by the front passenger’s
occupant detection system sen-
sor. For this reason, only the
driver’s SRS frontal airbag may
deploy in the event of a collision,
but this does not mean failure of
the system.
If the following sensors detect a predetermined amount of force
during a frontal collision, the
control module sends signals to
the airbag module(s) (only
driver’s module or both driver’s
and front passenger’s modules)
instructing the module(s) to
inflate the SRS frontal airbag(s).

The front impact sensors
 The impact sensors in the air-
bag control module
On the driver’s side, the SRS
knee airbag also inflates with
the SRS frontal airbag.
The driver’s and front passen-
ger’s SRS frontal airbags use
dual stage inflators. The two
inflators of each airbag are trig-
gered either sequentially or
simultaneously, depending on
the severity of impact, in the
case of the driver’s SRS frontal
airbag and depending on the
severity of impact and the char-
acteristic of item(s) or person on
the seat in the case of the front
passenger’s SRS frontal airbag.
■After deployment
After deployment, the SRS air-
bag immediately starts to deflate
so that the driver’s vision is not
obstructed and the driver’s abil-
ity to maintain control of the
vehicle is not impaired. The time
required from detecting impact
to the deflation of the SRS air-
bag after deployment is shorter
than the blink of an eye.
A

431-1. For safe use
1
For safety and security
dents in which it is possible
that the driver’s/driver’s and
front passenger’s SRS frontal
airbag(s) will deploy
Only the driver’s SRS frontal airbag
or both driver’s and front passen-
ger’s SRS frontal airbags may be
activated when the vehicle sustains
a hard impact in the undercarriage
area from the road surface (such as
when the vehicle plunges into a
deep ditch, is seve rely impacted or
knocked hard against an obstacle
on the road such as a curb).
 Examples of the types of acci-
dents in which deployment of
the driver’s/driver’s and front
passenger’s SRS frontal air-
bag(s) is unlikely to occur
There are many types of collisions
which might not necessarily require
deployment of driver’s/driver’s and
front passenger’s SRS frontal air-
bag(s). In the eve nt of accidents
like those illu strated, the
driver’s/driver’s and front passen-
ger’s SRS frontal airbag(s) may not
deploy depending on the level of
accident forces involved.
• The vehicle strikes an object, such as a telephone pole or sign
pole. • The vehicle slides under the load
bed of a truck.
• The vehicle sustains an oblique offset frontal impact.
• The vehicle sustains an offset frontal collision.

451-1. For safe use
1
For safety and security
■Warning labels and tag
This vehicle has warning labels on
the driver’s and front passenger’s
sun visors beginning with the
phrase “EVEN WITH ADVANCED
AIR BAGS” and a tag attached to
the glove box lid beginning with the
phrase “Even with Advanced Air
Bags”. Make sure that you carefully
read the instructions on the warning
labels and tag.
■Toyota advanced frontal airbag
system
●The SRS side airbag and seatbelt
pretensioner are not controlled by
the Toyota advanced frontal air-
bag system.
●The front passenger’s SRS side
airbag and SRS curtain shield air-
bag are not controlled by the Toy-
ota advanced frontal airbag
system.
■Conditions in which front pas-
senger’s SRS frontal airbag is
not activated
The front passenger’s SRS frontal
airbag will not be activated when
any of the following conditions are
met regarding the front passenger’s
seat:
●The seat is empty.
●The seat is equipped with an
appropriate child restraint system
and an infant or a child is
restrained in i t. (See WARNING
that follows.)
●The front passenger’s occupant
detection system is malfunction-
ing.
■Conditions in which front pas-
senger’s SRS frontal airbag is
activated
The front passenge r’s SRS frontal
airbag will be activ ated for deploy-
ment upon impact when any of the
following conditions are met regard-
ing the front passenger’s seat.
●When the seat is occupied by an
adult.
●When certain items (e.g. jug of
water) are plac ed on the seat.
■If the front passenger’s frontal
airbag ON indicator illuminates
and the OFF indicator turns off
If you think that the Front passen-
ger's frontal airb ag ON/OFF indica-
tor is incorrect, take the following
actions.
●Ensure that no article is placed on
the seat other than the occupant.
●Ensure that the backward-forward
position and seatback of front pas-
senger’s seat are locked into
place securely by moving the seat
back and forth.
If the ON indicator still remains illu-
minated while the OFF indicator
turns off after taking relevant correc-
tive actions descr ibed above, imme-
diately contact your Toyota dealer
for an inspection.
Even if the system has passed the
dealer inspection, it is recom-
mended that on subsequent trips
the small adult alwa ys take the rear
seat.

471-1. For safe use
1
For safety and security
WARNING
■General Precautions regard-
ing front passenger’s SRS
frontal airbag
When the front passenger's seat
is occupied by an adult, observe
the following precautions. Failure
to do so may lessen the load on
the front passenger 's seat, deacti-
vating the front passenger's SRS
frontal airbag despite the fact that
the seat is occupied by an adult.
This may result in personal injury.
●Do not allow the rear seat occu-
pant to lift the front passenger's
seat cushion using his/her feet.
●Do not place any article under
the front passenger's seat, or
squeeze any article from behind
and under the seat.
●Do not squeeze any article
between the front passenger's
seat and side trim/pillar, door or
center console box. This may lift
the seat cushion.
■When a small a dult is seated
in the front passenger’s seat
When a small adult is seated in
the front passeng er’s seat, the
Toyota advanced frontal airbag
system may or may not activate
the front passenger’s SRS frontal
airbag depending on the occu-
pant’s seating posture. If the OFF
indicator remains illuminated
while the ON indi cator turns off
when a small adult is seated in
the front passenger's seat, refer to
P. 4 5 .
■General Precautions regard-
ing occupant detection sys-
tem
Do not kick the front passenger
seat or subject it to severe impact.
Otherwise, the SRS warning light
may illuminate to indicate a mal-
function of the front passenger
occupant detection system. In this
case, contact your Toyota dealer
immediately.
■After deployment
Do not touch the SRS airbag sys-
tem components around the
steering wheel and dashboard
with bare hands right after deploy-
ment. Doing so can cause burns
because the components can be
very hot as a result of deploy-
ment.
NOTICE
■Toyota advanced frontal air-
bag system precautions
Observe the following precau-
tions. Failure to do so may pre-
vent the Toyota advanced frontal
airbag system from functioning
correctly or cause the system to
fail.
●Do not apply any strong impact
to the front passenger’s seat
such as by kicking.
●Do not let rear passengers rest
their feet between the front
seatback and seat cushion.
●Do not spill liquid on the front
passenger’s seat. If liquid is
spilled, wipe it o ff immediately.
●Do not remove or disassemble
the front passenger’s seat.

481-1. For safe use
■SRS side airbag
The SRS side airbag is stored in
the door side of each front seat
seatback, which bears an “SRS
AIRBAG” mark.
In a moderate to severe side
impact collision, the SRS side
airbag on the impacted side of
the vehicle deploys between the
occupant and the door panel
and supplements the seatbelt by
reducing the impact on the
occupant’s chest and waist. The
SRS side airbag operates only
for front seat occupants.
■SRS curtain shield airbag
Your vehicle is equipped with a
SRS curtain shield airbag sys-
tem that complies with the Fed-
eral Motor Vehicle Safety
Standard (FMVSS) No. 226.
The SRS curtain shield airbag
NOTICE
●Do not install any accessory
(such as an audio amplifier)
other than a genuine Toyota
accessory under the front pas-
senger’s seat.
●Do not place anything (shoes,
umbrella, etc.) under the front
passenger’s seat.
●Do not place any objects
(books, etc.) around the front
passenger’s seat.
●Do not use the front passen-
ger’s seat with the head
restraint removed.
●Do not leave any articles on the
front passenger’ s seat or the
seatbelt tongue and buckle
engaged when you leave your
vehicle.
●Do not put sharp object(s) on
the seat or pierce the seat
upholstery.
●Do not place a magnet near the
seatbelt buckle and the seatbelt
retractor.
●Do not use front seats with their
backward-forward position
adjuster and seatback adjuster
not being locked into place
securely. If any of them are not
locked securely, adjust them
again. For adjusting procedure,
refer to P.119.
■When using the front passen-
ger’s seat
Observe the following precautions
as it increase the load on the front
passenger's seat and not work
properly.
●Do not install any accessory
such as a table or TV onto the
seatback.
●Do not allow the rear seat occu-
pant to place his/her hands or
legs on the front passenger's
seatback, or allow him/her to
pull the seatback.
SRS side airbag and SRS
curtain shield airbag

491-1. For safe use
1
For safety and security
on each side of the cabin is
stored in the roof side (between
the front pillar and a point over
the rear seat). An “SRS AIR-
BAG” mark is located at the top
of each center pillar.
In a moderate to severe side
i m p a c t c o l l i s i o n , t h e S R S c u r t a i n
shield airbag on the impacted
side of the vehicle deploys
between the occupant and the
side window and supplements
the seatbelt by reducing the
impact on the occupant’s head.
In a rollover, SRS curtain shield
airbags on both sides of the
vehicle deploy between the
occupant and the side window
and supplement the seatbelt by
reducing the impact to the occu-
pant’s head.
In an offset frontal collision, SRS
curtain shield airbags on both
sides of the vehicle deploy
between the occupant and the
side window and supplement
the seatbelt by reducing the
impact to the occupant’s head
and chest.
■Operation
The SRS side airbag and SRS
curtain shield airbag can func-
tion only when the engine switch
is in ON.
The following airbags deploy
independently of each other
since each has its own impact
sensor. 
Driver’s SRS side airbag
 Front passenger’s SRS side
airbag
 SRS curtain shield airbag
(right-hand side)
 SRS curtain shield airbag
(left-hand side)
Therefore, they may not both
deploy in the same accident.
Also, the SRS side airbag and
SRS curtain shield airbag
deploys independently of the
driver’s and front passenger’s
SRS frontal airbags in the steer-
ing wheel and instrument panel.
For the locations of the sensors
and control modules, refer to
P. 2 9 .
■After deployment
After the deployment, the SRS
side airbag immediately starts to
deflate. The time required from
detection of an impact to defla-
tion of an SRS side airbag after
deployment is shorter than the
blink of an eye.
The SRS curtain shield airbag
remains inflated for a while fol-
lowing deployment then slowly
deflates.
The SRS side airbag and SRS
curtain shield airbag deploy
even when no one occupies the
seat on the side on which an
impact is applied.
When the SRS side airbag and
SRS curtain shield airbag