airbag SUBARU BRZ 2018 Repair Manual

144 1-7. Safety information
BRZ_U (A4450BE-A)
WARNING
■Child restraint precautions
●Do not allow the child to lean his/her head or any part of his/her body
against the door or the area of the seat, front and rear pillars or roof side
rails from which the SRS side airbags or SRS curtain airbags deploy even
if the child is seated in the child restraint system. It is dangerous if the SRS
side airbags and curtain airbags inflate, and the impact could cause death
or serious injury to the child.
● Make sure you have complied with all installation instructions provided by
the child restraint manufacturer and that the system is properly secured. If
it is not secured properly, it may cause death or serious injury to the child
in the event of a sudden stop, sudden swerve or an accident.
■ When children are in the vehicle
Do not allow children to play with the seatbelt. If the seatbelt becomes
twisted around a child’s neck, it may lead to choking or other serious injuries
that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used
to cut the belt.
■ When the child restrain t system is not in use
● Keep the child restraint system properly secured on the seat even if it is
not in use. Do not store the restraint unsecured in the passenger compart-
ment.
● If it is necessary to detach the child restraint system, remove it from the
vehicle or store it securely in the trunk. This will prevent it from injuring
passengers in the event of a sudden stop, sudden swerve or accident.

206 2-2. Instrument cluster
BRZ_U (A4450BE-A)
*1:Vehicles without a keyless access with push button start system
These lights turn on when the engine switch is turned to the “ON”
position to indicate that a system check is being performed. They
will turn off after the engine is started, or after a few seconds. There
may be a malfunction in a system if a light does not come on, or if
the lights do not turn off. Have the vehicle inspected by your
SUBARU dealer.
Vehicles with a keyless access with push button start system
These lights turn on when the push-button ignition switch is turned
to “ON” mode to indicate that a system check is being performed.
They will turn off after the engine is started, or after a few seconds.
There may be a malfunction in a system if a light does not come on,
or if the lights do not turn off. Have the vehicle inspected by your
SUBARU dealer.
*2: This indicator turns on when the engine coolant temperature is low.
*3: The light flashes to indicate that the system is operating.
*4: When the outside temperature is approximately 37°F (3°C) or lower,
the indicator will illuminate.
(Green)
Cruise control indicator
(→ P. 243)
(If equipped)
Low outside tempera-
ture indicator ( →P. 230)
“SET” indicator
(→ P. 243)
Airbag on-off indicator ( →P. 131)
*4
*5

207
2-2. Instrument cluster
2
When driving
BRZ_U (A4450BE-A)
*5: The front passenger’s frontal airbag ON and OFF indicators show
you the status of the front passenger’s SRS frontal airbag. When the
engine switch is turned to the “ON” position, (vehicles without a key-
less access with push button start system), or the push-button ignition
switch is turned to “ON” mode (vehicles with a keyless access with
push button start system), both the ON and OFF indicators illuminate
for 6 seconds during the system check. After the system check, both
the ON and OFF indicators turn off for 2 seconds. Then, either the
ON or OFF indicator illuminates depending on the condition of the
front passenger’s frontal airbag.
When the OFF indicator remains off and ON indicator illuminates, the
front passenger’s frontal airbag may deploy during a collision. When
the OFF indicator illuminates and ON indicator remains off, the front
passenger’s frontal airbag does not deploy during a collision.
If the front passenger’s frontal airbag ON and OFF indicators remain
on when the engine switch is turned to the “ON” position (vehicles
without a keyless access with push button start system) or the push-
button ignition switch is turned to “ON” mode (vehicles with a keyless
access with push button start system), or the indicators remain off
after the system check, the system may be malfunctioning. Have the
vehicle inspected by your SUBARU dealer immediately.

209
2-2. Instrument cluster
2
When driving
BRZ_U (A4450BE-A)
WARNING
■
If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS airbag system warn-
ing light not come on when you start the engine, this could mean that these
systems are not available to help protect you in an accident, which could
result in death or serious injury. Have the vehicle inspected by your
SUBARU dealer immediately if this occurs.
*3: The light comes on in yellow to indicate a malfunction.
*4:Vehicles without a keyless access with push button start sys-
tem
These lights turn on when the engine switch is turned to the “ON”
position to indicate that a system check is being performed. They
will turn off after the engine is started. There may be a malfunction
in a system if a light does not come on, or if the lights do not turn off.
Have the vehicle inspected by your SUBARU dealer for details.
Vehicles with a keyless access with push button start system
These lights turn on when the push-button ignition switch is turned
to “ON” mode to indicate that a system check is being performed.
They will turn off after the engine is started. There may be a mal-
function in a system if a light does not come on, or if the lights do
not turn off. Have the vehicle inspected by your SUBARU dealer for
details.
*5: Vehicles with a monochrome multi-information display only: This light turns on when the engine switch is turned to the “ON” position
to indicate that a system check is being performed. It will turn off
after the engine is started, or after a few seconds. There may be a
malfunction in a system if the light does not come on or turn off.
Have the vehicle inspected by your SUBARU dealer for details.

343
4-1. Maintenance and care
4
Maintenance and care
BRZ_U (A4450BE-A)
■
Caring for leather areas
SUBARU recommends cleaning the interior of the vehicle at least twice a
year to maintain the quality of the vehicle’s interior.
■ Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a
sponge or brush to apply the foam. Rub in overlapping circles. Do not apply
water. Excellent results are obtained by keeping the carpet as dry as possi-
ble.
■ Seatbelts
Clean with mild soap and lukewarm water using a cloth or sponge. Also
check the belts periodically for excessive wear, fraying or cuts.
WARNING
■Water in the vehicle
● Do not splash or spill liquid in the vehicle.
Doing so may cause electrical components etc. to malfunction or catch
fire.
● Do not get any of the SRS components or wiring in the vehicle interior wet.
(→ P. 98)
Electrical malfunction may cause the airbags to deploy or not function
properly, resulting in death or severe injury.
■ Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel may reflect off
the windshield, obstructing the driver's view and leading to an accident,
resulting in death or serious injury.

401
4-3. Do-it-yourself maintenance
4
Maintenance and care
BRZ_U (A4450BE-A)
16SPARE See note. Spare fuse
17SPARE See note. Spare fuse
18SPARE See note. Spare fuse
19SPARE See note. Spare fuse
20SPARE See note. Spare fuse
21ST 7.5 A Starting system
22ALT-S 7.5 A

23(STR LOCK) 7.5 A Steering lock system
24D/L 20 A Power door lock
25ETCS 15 A Engine control unit
26(AT+B) 7.5 A Transmission
27(AM2 NO. 2) 7.5 AKeyless access with push button
start system
28EFI (CTRL) 15 A Engine control unit
29EFI (HTR) 15 AMultiport fuel injection system/
sequential multiport fuel injection
system
30EFI (IGN) 15 A Starting system
31EFI (+B) 7.5 A Engine control unit
32HAZ 15 A
Turn signal lights, hazard warning
flashers
33MPX-B 7.5 AAutomatic air condi
tioning system,
gauge and meters
34F/PMP 20 A Multiport fuel injection system/
sequential multiport fuel injection
system
35IG2 MAIN 30 A
SRS airbag system, engine control
unit
36DCC 30 AInterior light, remote keyless entry
system, main body ECU
FuseAmpereCircuit

402 4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)Note
One of each of the following spare fuses are provided: 7.5 A, 10 A, 15
A, 20 A, 25 A, 30 A.
37HORN NO. 2 7.5 A Horn
38HORN NO. 1 7.5 A Horn
39H-LP LH LO 15 A Left-hand headlight (low beam)
40H-LP RH LO 15 A Right-
hand headlight (low beam)
41H-LP LH HI 10 A Left-hand headlight (high beam)
42H-LP RH HI 10 A Right-hand headlight (high beam)
43INJ 30 AMultiport fuel injection system/
sequential multiport fuel injection
system
44H-LP WASHER 30 A
45AM2 NO. 1 40 A Starting system, engine control unit
46EPS 80 A Electric power steering
47A/B MAIN 15 A SRS airbag system
48ECU-B 7.5 A
Remote keyless entry system,
main body ECU
49DOME 20 A Interior light
50IG2 7.5 A Engine control unit
FuseAmpereCircuit

430 5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
Have the vehicle inspected immediately.Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your SUBARU dealer immediately.
Warning lightWarning light/Details
(U.S.A.)
(Canada and Mexico) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control system.
SRS airbag system warning light Indicates a malfunction in:
• The SRS airbag system;
• The seatbelt pretensioner system;
• The front passenger occupant detection system.
(U.S.A.)
(Canada and Mexico) ABS warning light
Indicates a malfunction in:
• The ABS;
• The brake assist system.
Electric power steering warning light (warning buzzer) Indicates a malfunction in the electric power steering sys-
tem.
Slip indicator Indicates a malfunction in:
• The Vehicle stability control (VSC) system;
• The TRAC system;
• The hill start assist system.
Automatic headlight leveling system warning light Indicates a malfunction in the automatic headlight leveling
system.

5
When trouble arises
431
5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
(Comes on in
yellow) Cruise control indicator light
Indicates a malfunction in the cruise control system.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your SUBARU dealer as soon as possible.
■ SRS airbag system warning light
→ P. 129
■ Electric power steering warning light (warning buzzer)
The electric power steering warning light may come on and the warning
buzzer may sound when the voltage is low or the voltage drops.
WARNING
■When the electric power steering warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
Warning lightWarning light/Details

442 5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
Have the vehicle inspected immediately.Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your SUBARU dealer immediately.
Warning messageDetails
Indicates a malfunction in:
• The SRS airbag system;
• The seatbelt pretensioner system;
• The front passenger occupant detection system. A buzzer also sounds.
(U.S.A.)
(Canada and Mexico)
Indicates a malfunction in:
• The ABS;
• The brake assist system. A buzzer also sounds.
Indicates a malfunction in the electric power steer-
ing system. A buzzer also sounds.