2023 SUBARU BRZ radio antenna

Keyless Access with Push-Button Start System
95
Keys and Doors2
– CONTINUED –
1) Antenna
The radio waves from the transmit-
ting antennas on the vehicle could

adversely affect the operation of
implanted pacemakers and
implanted defibrillators.If you wear electronic medical
equipment other than an implanted
pacemaker or an implanted
defibrillator, before using the key-
less access with push-button start
system, refer to “Radio waves used
for the keyless access with push-
button start system” mentioned
later, and contact the electronic
medical equipment manufacturer
for more information. The radio
waves from the tr ansmitting anten-
nas on the vehicle could adversely
affect the operation of the elec-
tronic medical equipment.“Radio waves used for the keyless
access with push-button start sys-
tem”
 The keyless access with push-
button start system uses radio
waves of the following frequency*
in addition to the radio waves
used for the remote keyless entry
system. The radio waves are peri-
odically output from the antennas
installed on the vehicle as shown
in the following illustrations.
*: Radio frequency: 134 kHz
1
1
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Keyless Access with Push-Button Start System
98▼Operating ranges1) Antenna
2) Operating range (approximately 16 to
32 in (40 to 80 cm))
1) LED indicator
When the access key fob is within either of
the operating ranges of the doors, the
LED indicator on the access key fob
flashes. When the keyless access func-
tions are disabled, the LED indicator does
not flash unless a button on the access
key fob is pressed.NOTE If the access key fob is placed too
close to the vehicle body, the keyless
access functions may not operate
properly. If it does not operate prop-
erly, repeat the operation from farther
away.
 If the access key fob is placed near
the ground or in an elevated location
from the ground, even if it is in the indi-
cated operating range, the keyless
access function may not operate prop-
erly.
 When the access key fob is within
the operating range, it is possible for
anyone, even someone who is not
carrying the access key fob, to operate
the keyless access function. Note that
the keyless access function can be
operated only by the door handle, door
lock sensor or trunk opener button in
the operating range in which the
access key fob is detected.
 It is not possible to lock the doors,
trunk lid and fuel filler lid using the keyless access function when the

access key fob is inside the vehicle.
However, depending on the status of
the access key fob and the environ-
mental conditions, the access key fob
may be locked inside the vehicle.
Before locking the vehicle, make sure
that you have the access key fob.
 When the battery of the access key
fob is discharged, or when operating it
in a location with strong radio waves or
noise (e.g., near a radio tower, power
plant, broadcast station or an area
where wireless equipment is used), or
while talking on a cell phone, the oper-
ating ranges may be reduced, or the
keyless access function may not
operate. 
In such a case, perform the procedure
described in "Locking and Unlocking"
 P326.
 The doors may lock or unlock when
the car is being washed or exposed to
a significant amount of water that
touches the door handle while the key
fob is still in the operating range.
▼ How to lock and unlock
It is possible to perform the following oper-
ations when you are carrying the access
key fob.
 Lock and unlock the doors and the fuel
filler lid
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2
1
2
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Keyless Access with Push-Button Start System
103
Keys and Doors2
– CONTINUED –
Open a door and then close it
 Turn the push-button ignition switch to
the “ON” position■ Power Saving Function of
Access Key FobThis function stops the access key fob
from receiving signals and helps minimize
the battery consumption of the access key
fob.
1. Press the “ ” button twice while
holding the “ ” button.1) LED indicator2. Confirm that the LED indicator blinks 4
times to notify that the setting is complete.
When the access key fob is in the power
save mode, the keyless access function and push-button star
t system will not be
available.
To cancel the power save mode, press
one of the buttons on the access key fob.
■ Disabling Keyless Access
FunctionWhen the vehicle is not going to be used
for a long time, or when you choose not to
use the keyless access function, the
keyless access function can be disabled.NOTE The locking and unlocking function
by the remote keyless entry system is
not disabled.
 To start the engine while the func-
tions are disabled, perform the proce- dure described in "Starting Engine"

 P326.
▼ Disabling functions
▽ By operating the access key fob
To disable the keyless access function by
operating the access key fob, register a
PIN code for PIN Code Access. For
details about registering a PIN code, refer
to "Unlock Using PIN Code Access"
 P100.
1. Open the driver’s door.
2. Rotate the lock lever forward.
202501
1
WARNING
If you have an implanted pacemaker
or an implanted defibrillator, per-
form the procedure "By operating
the driver’s door" P104 to disable
the keyless access function. If you
perform the procedure "By operat-
ing the access key fob" P103, the
operation of an implanted pace-
maker or implanted defibrillator
may be affected by the radio waves
from the transmitter antenna.
203610
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Reverse Automatic Braking (RAB) System (If Equipped)
280
- The rear bumper is exposed to
strong impact, or the rear bumper is
deformed.
 On a steep hill, the system’s auto-
matic braking ability will be reduced.
 The system is designed to avoid
collisions by automatic hard braking
when the vehicle’s reversing speed is
less than approximately 3 mph (5 km/
h). However, the system does not guar-
antee that the vehicle will be able to
avoid collisions in any situation.
 If the vehicle is reversed at an
extremely slow speed, the driver’s
operation may be prioritized. In this
case, automatic braking will not
operate.
 The system may not be able to
detect and apply the brake with the
following objects. - Sharp or thin objects such as
poles, fences and ropes which may
not reflect the s ound wave emitted
from the sonar sensor.
- Objects that are too close to the
rear bumper when the select lever is
set to the “R” position.
- Objects with a surface which
may not reflect the sound wave
emitted from the sonar sensor such
as a chain link fence.
 Objects the system is not designed
to detect and apply brake. -Pedestrians.
- Moving objects including

moving vehicles.
- Objects which absorbs sound
waves such as cloth or snow.
- Objects whose surface has a
diagonal angle.
- Objects that are low to the
ground such as parking blocks.
- Objects that are high above the
ground such as objects hanging
from above.
- Objects that are out of range of
the center of the vehicle in the hori-
zontal direction.
- Objects that are not perpendic-
ular to the ground.
- The surface of the object is
uneven or wavy.
 When reversing the vehicle, the
functions may not be able to work
properly or may cause a system
malfunction if the following conditions
exist.
High frequency sound from other
sources are nearby:
- Horn sound from another
vehicle.
- Engine sound from other vehi-
cles.
- Sound of an air brake.
- Vehicle detection equipment or a
sonar from another vehicle. - A sound wave with a frequency

similar to the vehicle’s system is
transmitted near by.
- A vehicle equipped with the
same system is reversing toward
your reversing direction.
Weather conditions:
- Extremely high or extremely low
temperatures in which the area near
the sonar sensor becomes too hot
or too cold to operate.
- The sonar sensors or the rear
bumper near the sonar sensors are
exposed to heavy rain or a signifi-
cant amount of water.
- Fog, snow or sandstorm, etc.
- Air is moving rapidly such as
when a strong wind is blowing.
Parts attached to the rear bumper
near the sonar sensor:
- Commercial electr onic parts (fog
light, fender pole, radio antenna) or
commercial attachment parts (trailer
hitch, bicycle carrier, bumper guard)
are attached.
- Parts that emit high frequency
sound, such as a horn or speaker,
are attached.
Vehicle conditions:
- Ice, snow or mud is adhered to
the sonar sensors or the rear
bumper near the sonar sensor.
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