belt SUBARU BRZ 2023 Repair Manual

SRS Airbag (Supplemental Restraint System Airbag)
91
Seat, Seatbelt and SRS Airbags1
Shen’s Corporation dba Prestige Automo-
biles
491 East Marine Corps Drive, 
Dededo, Guam 96929
671-633-2698

Trebol Motors
296 Marginal JF Kennedy, San Juan,
Puerto Rico
787-793-2828

Subaru Canada, Inc.
Consumer Support Department 
560 Suffolk Court, Mississauga, Ontario
L5R 4J7
1-800-894-4212
There are currently no SUBARU distribu-
tors in any other U.S. territories. If you are
in such an area, please contact the
SUBARU distributor or dealer from which
you bought your vehicle.
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Door Locks
113
Keys and Doors2
– CONTINUED –
▼How to operate the power door
locking switches
All doors and the fuel filler lid can be
locked and unlocked by pressing either
side of the power door locking switches
located on the driver’s side and the
passenger’s side doors.
1) Lock
2) UnlockNOTEMake sure that you do not leave the
key inside the vehicle before locking
the doors from the outside using the
power door locking switches.■ Key Lock-In Prevention
FunctionAll the doors will not lock when the power
door locking switch is pushed with the
door open while the ignition switch is in the
“ACC” or “ON” position.
NOTE When leaving the vehicle, make sure
you are holding the key before locking
the doors.
 The factory setting (default setting)
for this function is set as “operational”.
This function’s operational/non-opera-
tional setting can be changed by a
SUBARU dealer. Contact a SUBARU
dealer for details.
▼ Non-operation of key lock-in
prevention function
When the system is set so that it does not
operate, the doors are locked by the
following operation.
 If the lock lever is turned to the front
(“LOCK”) position with the driver’s door
open and the driver’s door is then closed
with the lock lever in that position, the
driver’s door is locked.
 If the spare key is used to lock the
driver’s door from the outside of the
vehicle, the door is locked.■ Battery Drainage Prevention
FunctionIf a door is not completely closed, the inte-
rior lights will remain illuminated as a
result. However, several lights are auto-
matically turned off by the battery
drainage prevention function to prevent
WARNING
Keep all doors locked when you
drive, especially when small chil-
dren are in your vehicle.Along with the proper use of
seatbelts, locking the doors
reduces the chance of being thrown
out of the vehicle in an accident.It also helps prevent passengers
from falling out by preventing a
door from being accidentally
opened, and intruders from unex-
pectedly opening doors and enter-
ing your vehicle.
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Instruments and Controls3
Instruments and Controls
3-1. Push-Button Ignition Switch ..............................125
Safety Precautions ............................................ ...........125
Operating Range for Push-Button Start System .......125
Switching Power Status ...............................................125
When Access Key Fob Does Not Operate 
Properly.......................................................................126
3-2. Hazard Warning Flasher .....................................127
3-3. Meters and Gauges .............................................127
Speedometer .................................................................127
Tachometer ...................................................................127
Odometer and Double Trip Meter................................128
Fuel Gauge ....................................................................129
Engine Coolant Temperature Gauge ..........................129
Outside Temperature ...................................................129
Combination Meter Settings ........................................130
3-4. REV indicator light and buzzer ..........................130
3-5. Illumination Brightness Control ........................130
Auto Dimmer Cancel Function ....................................131
3-6. Warning and Indicator Lights ............................131
Seatbelt Warning Light and Chime .............................131
SRS Airbag System Warning Light .............................135
Front Passenger’s Frontal Airbag ON and OFF Indicators ....................................................................135
CHECK ENGINE Warning Light/Malfunction 
Indicator Light ............................................................136
Coolant Temperature Low Indicator Light/Coolant Temperature High Warning Light .............................136
Charge Warning Light ..................................................137
Oil Pressure Warning Light .........................................137
AT OIL TEMP Warning Light (AT Models) .................138
Low Tire Pressure Warning Light (If Equipped) ........138
ABS Warning Light .......................................................140
Brake System Warning Light... ....................................140Low Fuel Warning Light .............................................. 141
Door Open Indicator .................................................... 141
Power Steering Warning Light ................................... 141
TRAC OFF Indicator Light........................................... 142
Vehicle Stability Control (VSC) Warning Light/

Vehicle Stability Control (VSC) Operation 
Indicator Light............................................................ 142
Vehicle Stability Control (VSC) OFF Indicator 
Light ........................................................................... 143
Warning Chimes and Warning Indicator of the 
Keyless Access with Push-Button Start System.... 143
Security Indicator Light............................................... 148
Drive Mode Indicator Light (If Equipped) .................. 148
Select Lever (AT Models Only)/Gear Position 
Indicator ..................................................................... 149
Cruise Control Indicator Light (White/Green)/ 
Cruise Control Warning Light (Yellow) (Models 
without the EyeSight System) .................................. 149
Turn Signal Indicator Lights ....................................... 149
High Beam Indicator Light .......................................... 150
High Beam Assist Indicator (If Equipped) ................. 150
Automatic Headlight Beam Leveler Warning 
Light ............................................................................ 150
LED Headlight Warning Light ..................................... 150
Steering Responsive Headlight OFF Indicator 
Light (If Equipped) ..................................................... 150
Steering Responsive Headlight Warning Light 
(If Equipped)............................................................... 150
Headlight Indicator Light ............................................ 150
Hill Start Assist Indicator Light .................................. 150
BSD/RCTA Warning Indicator (If Equipped).............. 150
BSD/RCTA OFF Indicator (If Equipped) ..................... 150
Icy Road Surface Warning Indicator .......................... 151
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Warning and Indicator Lights
131
Instruments and Controls3
– CONTINUED –
NOTEWhen the control dial is turned fully
upward, the illumination brightness
becomes the maximum and the auto-
matic dimming function does not work
at all.
 The brightness setting is not
canceled even when the ignition switch
is turned to th e “OFF” position.■Auto Dimmer Cancel Func -
tionWhen the ambient light is bright, the illumi-
nation brightness is set to the maximum
regardless of the position of the control
dial. In this case, you cannot adjust the
illumination brightness by using the
control dial. When the ambient light is
dark, you can dim the illumination bright-
ness as described above.
The operational/non-operational setting
and sensitivity of the auto dimmer cancel
function can be changed by your
SUBARU dealer. Contact your SUBARU
dealer for details.
3-6. Warning and Indicator LightsSeveral of the warning and indicator lights
illuminate momentarily and then go out
when the ignition switch is initially turned
to the “ON” position. This permits
checking the operation of the bulbs.
Apply the parking brake and turn the igni-
tion switch to the “ON” position. For the
system check, the following lights illumi-
nate and turn off after several seconds or
after the engine has started:
: Seatbelt warning light (The seatbelt
warning light turns off only when the
driver fastens the seatbelt.)
: Front passenger’s seatbelt warning
light (The seatbelt warning light turns
off only when the front seat passenger
fastens the seatbelt.)
: Rear passenger’s seatbelt warning
light (The seatbelt warning light turns
off only when the rear seat
passenger fastens the seatbelt.)
: SRS airbag system warning light
: Front passenger’s frontal airbag ON
indicator light
: Front passenger’s frontal airbag OFF
indicator light
/ : CHECK ENGINE warning light/ Malfunction indicator light : Coolant temperature high warning

light (red)
: Charge warning light : Oil pressure warning light
/ :ABS warning light
: Vehicle Stability Control (VSC)
warning light/Vehicle Stability
Control (VSC) operation indicator
light
: Vehicle Stability Control (VSC) OFF
indicator light
: TRAC OFF indicator light / :Brake system warning light (red)
:Power steering warning light
: Low tire pressure warning light (if
equipped)
: Low fuel warning light :Master warning light
If any lights fail to i lluminate, it indicates a
burned-out bulb or a malfunction of the
corresponding system.
Consult your authorized SUBARU dealer
for repair.
■ Seatbelt Warning Light
and ChimeYour vehicle is equipped with a seatbelt
warning device at the driver’s and
passenger’s seats, as required by current
safety standards.
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Warning and Indicator Lights
132▼Driver’s and front passenger’s
seats
With the ignition switch turned to the “ON”
position, this device reminds the driver
and front passenger to fasten their
seatbelts by illuminating the warning lights
in the locations indicated in the following
illustration and sounding a chime.Driver’s warning light Front passenger’s warning light
▽
Operation
When the ignition switch is turned to the
“ON” position, the dr iver’s and/or front
passenger’s warning light will illuminate,
then it will blink for several seconds. If the
seatbelt of the driver’s seat is not
fastened, the warning chime may make a
peep sound.NOTE If the driver’s and/or front
passenger’s seatbelt(s) are/is not
fastened while driving, the seatbelt
warning system operates as follows
according to the vehicle speed. - The warning light will illuminate
when driving approximately 4 mph
(6 km/h) or less. - The warning light will blink, and

the warning chime will make a peep
sound when driving between
approximately 4 mph (6 km/h) and
13 mph (20 km/h). The warning
chime will stop when the vehicle
stops.
- The warning light will blink, and
the warning chime will sound loudly
when 15 seconds have elapsed
while driving between approxi-
mately 4 mph (6 km/h) and 13 mph
(20 km/h).
- The warning light will blink, and
the warning chime will sound loudly
when driving approximately more
than 13 mph (20 km/h).
 The warning light will turn off and
the warning chime will stop when the
seatbelt is fastened.
If there is no passenger on the front
passenger’s seat, the seatbelt warning
system for the front passenger’s seat will
be deactivated. The front passenger’s
seatbelt warning system monitors whether
or not there is a passenger on the front
passenger’s seat.
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Warning and Indicator Lights
133
Instruments and Controls3
– CONTINUED –
If the seatbelt warning system for the front
passenger’s seat does not function
correctly (e.g., it is activated even when
the front passenger’s seat is empty or it is
deactivated even when the front
passenger has not fastened his/her
seatbelt), take the following actions. 
Ensure that no article is placed on the
seat other than a ch ild restraint system
and its child occupant, although we
strongly recommend th at all children sit in
the rear seat properly restrained.
 Ensure that the backward-forward
position and seatback of front passenger’s
seat are locked into place securely by
moving the seat back and forth.
If still the s eatbelt warning system for front
passenger’s seat does not function
correctly after taking relevant corrective
actions described above, immediately
contact your SUBARU dealer for an
inspection.
▼ Rear passenger’s seats1) Rear seat (left position)
2) Rear seat (right position)With the ignition switch turned to the “ON”
position, the seatbelt warning light and
chime reminds the rear passenger to
fasten their seatbelt by illuminating the
warning lights in the locations indicated in
the above illustration and sounding a
chime.
CAUTION
Observe the following precautions.
Failure to do so may prevent the
device from functioning correctly or
cause the device to fail. 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. Do not use front seats with their
backward-forward position and
seatback not being locked into
place securely. If any of them are
not locked securely, adjust them
again. For adjusting procedure,
refer to"Front Seats" P30
WARNING
 The driver must check that the all
passengers have fastened their
seatbelts properly since the
seatbelt warning system may not
detect passengers under the
following circumstances.
2
1
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Warning and Indicator Lights
134NOTEThe seatbelt warning system of the
rear seat detects if the seat is occupied
by a passenger. Heavy cargo or large
pets on the rear seat may result in the
activation of the passenger seatbelt
warning light and chime. Fastening the
rear seatbelt prior to loading cargo or
large pets will avoid activating the
passenger seatbelt warning light and
chime.
 When folding the rear seat, ensure
that the seat is empty prior to folding. Items caught between the seat bottom

and seatback, when folded, may
damage the seat surface or activate the
passenger seatbelt warning light and
chime.
▽ Operation
If passengers in the rear seats do not
fasten their seatbelts while the ignition
switch is turned to the “ON” position, the
seatbelt warning lights will illuminate or
blink to indicate that their seatbelts are not
fastened.NOTE If the rear passenger’s seatbelt(s)
are/is still not fast ened while driving,
the seatbelt warning system operates
as follows according to the vehicle
speed. - The warning light will illuminate
when driving approximately 4 mph
(6 km/h) or less.
- When driving approximately
between 4 mph (6 km/h) and 13 mph
(20 km/h), if the seatbelts are not
fastened for 50 seconds, the
seatbelt warning lights will blink and
a warning chime will sound. 
The chime will make a peep sound
for 15 seconds, and it then will
become louder and continue for 35
seconds. The warning light will blink for 50 seconds, then it will illuminate

steadily and the chime will stop.
- When driving more than approxi-
mately 13 mph (20 km/h), if seatbelts
are not fastened for 35 seconds, the
warning lights of the unfastened
seatbelts will blink and a chime will
sound loudly. If the rear seatbelts
are not fastened after 35 seconds,
the blinking warning light will illumi-
nate steadily and the chime will
stop. The warning lights will
continue to illuminate until their
seatbelts are fastened.
 The warning light will turn off and
the warning chime will stop when the
seatbelt is fastened.
- When cushions or child
restraint systems, etc., are
used.- When a child or small adult is
sitting in the seat.
 Observe the following precau-
tions
- Do not apply any strong
impact to the rear seat.- Do not fold the seatback
forward when objects are on
the seat.- Do not spill liquid on the rear
seat. If liquid is spilled, wipe it
off immediately.- Do not remove or disassemble
the rear seat.
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Warning and Indicator Lights
135
Instruments and Controls3
– CONTINUED –
■SRS Airbag System
Warning LightFor details about the components moni-
tored by the warning light, refer to "SRS
Airbag System Monitors" P87.
■ Front Passenger’s Frontal
Airbag ON and OFF Indica -
tors
:Front passenger’s frontal airbag ON
indicator
:Front passenger’s frontal airbag
OFF indicator
The front passenger’s frontal airbag ON
and OFF indicators show you the status of
the front passenger’s SRS frontal airbag.
The indicators are located as shown in the
illustration.
When the ignition switch is turned to the
“ON” position, both the ON and OFF indi-
cators illuminate for 6 seconds during
which time the system is checked.
Following the system check, both indica-
tors turn off for 2 se conds. After that, one
of the indicators illuminates depending on the status of the front passenger’s SRS

frontal airbag determined by the SUBARU
advanced frontal airbag system moni-
toring.
If the front passenger’s SRS frontal airbag
is activated, the passenger’s frontal airbag
ON indicator will illuminate while the OFF
indicator will remain off.
If the front passenger’s SRS frontal airbag
is deactivated, the passenger’s frontal
airbag ON indicator will remain off while
the OFF indicator will illuminate.
With the ignition switch turned to the “ON”
position, if both the ON and OFF indica-
tors remain illuminated or off simultane-
ously even after the system check period,
the system is malfunctioning. Contact
your SUBARU dealer immediately for an
inspection.
WARNING
If the warning light exhibits any of
the following conditions, immedi-
ately stop the vehicle in a safe
place, and consult a SUBARU
dealer. Unless a technician checks
and repairs the system as needed,
the seatbelt pretensioners and/or
the SRS airbag will not operate
properly in the event of a collision,
which may result in injury. Flashing or flickering of the
warning light No illumination of the warning
light when the ignition switch is
first turned to the “ON” position Continuous illumination of the
warning light Illumination of the warning light
while driving
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Warning and Indicator Lights
137
Instruments and Controls3
– CONTINUED –
This coolant temperature low indicator
light/coolant temper ature high warning
light has the following three functions.
 Illumination in BLUE indicates insuffi-
cient warming up of the engine
 Blinking in RED indicates that the
engine is close to overheating
 Illumination in RED indicates over-
heating condition of the engine
For the system check, this indicator light/
warning light illuminates in RED for
approximately 2 seconds when the igni-
tion switch is turned to the “ON” position.
After that, this indicator light/warning light
changes to BLUE and maintains illumina- tion in
BLUE. This BLUE illuminated light
turns off when the engine is warmed up
sufficiently.
If the engine coolant temperature
increases over the specified range, the
indicator light/warning light blinks in RED.
At this time, the engine is close to over-
heating.
If the engine coolant temperature
increases further, the indicator light/
warning light illuminates in RED continu-
ously. At this time, the engine may be
overheating.
When the indicator light/warning light
blinks in RED or illuminates in RED, safely
stop the vehicle as soon as possible, and
refer to the emergency steps for the
engine overheating. Refer to "Engine
Overheating" P319. After that, have the
system checked by your nearest
SUBARU dealer.
Also, if the indicator light/warning light
often blinks in RED, the electrical system
may be malfunctioning. Contact your
SUBARU dealer for an inspection.
NOTEIf the engine is restarted after a certain
driving condition, this indicator light/
warning light may illuminate in RED.
However, this is not a malfunction if the indicator light/warning light turns

off after a short time.
■ Charge Warning LightIf this light illuminates when the engine is
running, it may indicate that the charging
system is not working properly.
If the light illuminates while driving or does
not turn off after the engine starts, stop the
engine at the first safe opportunity and
check the drive belt. If the belt is loose,
broken or if the belt is in good condition
but the light remains illuminated, contact
your nearest SUBARU dealer immedi-
ately.■ Oil Pressure Warning
LightIf this light illuminates when the engine is
running, it may indicate that the engine oil
pressure is low and the lubricating system
is not working properly.
If the light illuminates while driving or does
not turn off after the engine starts, stop the
- Blinking or illuminated in
RED: 
Safely stop the vehicle as
soon as possible, and refer to
the emergency steps for the
engine overheating. After that,
have the system checked by
your nearest SUBARU dealer.
Refer to "Engine Overheating"
 P319- Blinking in RED and BLUE
alternately: 
The electrical system may be
malfunctioning. Contact your
SUBARU dealer for an inspec-
tion.
CAUTION
Do not operate the engine with the
oil pressure warning light on. This
may cause serious engine damage.
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Preparing to Drive
228have implemented emission inspection of
the OBDII system.
 The inspection of the OBDII system
consists of a visual operational check of
the “ CHECK ENGINE ” warning light/
malfunction indicator light (MIL) and an
examination of the OBDII system with an
electronic scan tool.
 A vehicle passes
the OBDII system
inspection if proper operation of the
“ CHECK ENGINE ” warning light is
observed, there are no stored diagnostic
trouble codes, and the OBDII readiness
monitors are all complete.
 A vehicle fails
the OBDII inspection if
the “ CHECK ENGINE ” warning light is not
properly operating (light is illuminated or is
not working due to a burned out bulb) or
there is one or more diagnostic trouble
codes stored in the vehicle’s computer.
 A state emission in spection may reject
(not pass or fail) a vehicle if the number of
OBDII system readiness monitors “ NOT
READY ” is greater than one. If the
vehicle’s battery has been recently
replaced or disconnected, the OBDII
system inspection may indicate that the
vehicle is not ready for the emission test.
Under this condition, the vehicle driver
should be instructed to drive his/her
vehicle for a few days to reset the readi-
ness monitors and return for an emission
re-inspection. 
Owners of rejected or failing vehicles
should contact their SUBARU Dealer for
service.
7-3. Preparing to DriveYou should perform the following checks
and adjustments every day before you
start driving.
1. Check that all windows, mirrors, and
lights are clean and unobstructed.
2. Check the appearance and condition
of the tires. Also check tires for proper
inflation.
3. Look under the vehicle for any sign of
leaks.
4. Check that no small animals enter the
engine compartment.
5. Check that the hood and trunk are fully
closed.
6. Check the adjustment of the seat.
7. Check the adjustment of the inside
and outside mirrors.
8. Fasten your seatbelt. Check that your
passengers have fastened their seatbelts.
9. Check the operation of the warning
and indicator lights when the ignition
switch is turned to the “ON” position.
10. Check the gauges, indicator and
warning lights after starting the engine.
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