2023 SUBARU BRZ warning

Reverse Automatic Braking (RAB) System (If Equipped)
278tion for statistical processing or similar
purposes.■ Reverse Automatic Braking
(RAB) System OverviewThe Reverse Automatic Braking (RAB)
system will operate th e following 2 func-
tions using 4 sonar sensors.
 Sonar Audible Alarm function
The Reverse Automatic Braking (RAB)
system detects objects rearward and
warns the driver by warning message on
the center information display and
warning beeps.
 Automatic Braking function
The Automatic Braking function detects
objects rearward and if there is a high risk
of a collision, the system de celerates the
vehicle and controls the braking to reduce
damage.
1) When reversing
2) When either strong automatic br aking or torque control is applied to prevent collision (in this
case, short warning beeps or continuous warning beeps will sound)
3) When the vehicle is stopped by the system (in this case, the continuous beep will remain
sounding)
4) Object (e.g., a wall)
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4
2 Object Close Behind
3 Apply Brake To Hold Position 4
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Reverse Automatic Braking (RAB) System (If Equipped)
279
Starting and Operating7
– CONTINUED –
■Operating ConditionsThe Reverse Automatic Braking (RAB)
system will operat e when all of the
following conditions are met.
1) EyeSight warning indicator
2) RAB warning indicator
3) RAB OFF indicator The ignition switch is in the “ON” posi-
tion.
 The EyeSight warning indicator is off.
 The RAB warning indicator is off.
 The RAB OFF indicator is off.
 The select lever is in the “R” position.
Sonar Audible Alarm function
 The Sonar Audible Alarm is set to “ON”.
 The vehicle speed is from 0 to 9 mph (0
to 15 km/h).
Automatic Brak ing function
 The Automatic Braking is set to “ON”.
 The vehicle speed is from 1 to 9 mph
(1.5 to 15 km/h).
NOTE In the following cases, the Reverse
Automatic Braking (RAB) system will
not operate. Promptly contact a
SUBARU dealer to have the system
inspected. - The EyeSight warning indicator
is illuminated.
- The RAB warning indicator is
illuminated.
 In the following cases, the Reverse
Automatic Braking (RAB) system
cannot be operated. - The RAB OFF indicator is illumi-
nated.
 In the following ca ses, the functions
may not be able to properly work.
Promptly contact a SUBARU dealer to
have the system inspected. - A sticker, paint, or a chemical is
applied to the sonar sensors or the
rear bumper near the sonar sensor.
- The rear bumper is modified.
- The rear bumper has been
removed and attached.
- The ground clearance is
changed due to the vehicle’s
loading condition or modification.
- There is damage to the sonar
sensors or the rear bumper near the
sonar sensor.
WARNING
If your vehicle is trapped on a rail-
road crossing and you are trying to
escape by reversing through the
crossing gate, the system may rec-
ognize the crossing gate as an
obstacle and brake may activate. In
this case, remain calm and either
continue to depress the accelerator
pedal or cancel the system. To can-
cel the system, refer to "Canceling
the Reverse Automatic Braking
(RAB) System Operation" P285.
3 1
2
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Reverse Automatic Braking (RAB) System (If Equipped)
282
- There is an obstacle that is next
to an object.
- Going back along a wall.
- The area where the road starts
touching dirt and snow
- When reversing on an uneven
road.
 In circumstances such as the
following, it may not be possible to
avoid a collision even when the system
operates normally. - Roads are slippery.
- The tire air pressure is not
correct.
- The tires have become worn.
- Tire chains are installed.
- Tires which are not the desig-
nated size are installed.
- Emergency repairs were
performed using a puncture repair
kit.
- The suspension was modified.
- Vehicle driving is unstable due to
accident or malfunction.
- The brake warning light is illumi-
nated.
■ Sonar Audible Alarm func -
tionWhen Reverse Automatic Braking (RAB)
system is in operation, an audible warning
beeps will sound in 3 levels to warn the
driver of a potential collision.
NOTEIt may take time to display the wall and
sound warning beeps after the object
was recognized by the Sonar Audible
Alarm function.
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Reverse Automatic Braking (RAB) System (If Equipped)
283
– CONTINUED –
Starting and Operating7
Guideline of detecting range*: Range of detection may vary depending on the environmental condition.Alert level
Range of detected
object
*
Distance
indicator Alarm pattern
Long proximity (object detected) 35 in (90 cm) or more Green No warning sound
Medium proximity alert (approaching
the object) 28 to 35 in (70 to 90 cm) Yellow Short beeps
Short proximity alert (approaching
closer to the object) 20 to 28 in (50 to 70 cm) Orange Rapid short beeps
Closest proximity alert (too close to
the object) 20 in (50 cm) or less Red Continuous beep
▼
Obstacle detected and alert levelLong proximity alert (object detected)
1) Green: 35 in (90 cm) or more
Medium proximity alert (approaching the
object)
1) Yellow: 28 to 35 in (70 to 90 cm)
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Reverse Automatic Braking (RAB) System (If Equipped)
284Short proximity alert (approaching the
object closer)
1) Orange: 20 to 28 in (50 to 70 cm)
Closest proximity alert (too close to the
object)
1) Red: 20 in (50 cm) or less
When an object is detected in the
reversing direction, the range of detected
object will be shown on the center infor-
mation display.
A warning alarm will sound and,
depending on the speed, either torque
control to generate engine braking or
automatic braking will be applied.■ Automatic Braking function
Operation▼ Object close behind warningAutomatic braking warning
1) Warning messageIf the system determine the risk of collision
with the object. Short warning beeps or
continuous warning beeps will sound and either strong automatic braking or torque

control will be applied to prevent collision.
At this time, a warning message is also
displayed on the combination meter
display (color TFT).
Depress brake pedal warning
1) Warning messageMake sure to depress the brake pedal
once the vehicle has been stopped by
automatic braking. Un til the brake pedal is
depressed, a message will be displayed
on the center information display and the
continuous beep will remain sounding.
At this time, a warning message is also
displayed on the combination meter
display (color TFT).
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Reverse Automatic Braking (RAB) System (If Equipped)
285
Starting and Operating7
– CONTINUED –
NOTEThe Sonar Audible Alarm function and
Automatic Braking fu nction are differ-
ent in operation conditions. Therefore
there are cases in which only one of
these functions will activate.▼ After the vehicle is stopped by the
system After the brake pedal is depressed, the

RAB OFF indicator will illuminate and the
system will temporarily stop operating.
The RAB OFF indicator will turn off when
the select lever is shifted to a position
other than the “R” position.
The system will operate again the next
time the select lever is shifted to the “R”
position.
NOTE The Reverse Automatic Braking
(RAB) system will be disabled in the
following situations. - When 3 seconds pass after the
vehicle is stopped
- When any door is opened
- When the RAB warning indicator
is illuminated
- When the RAB OFF indicator is
illuminated
 The Reverse Automatic Braking
(RAB) system may stop operating
temporarily in the following cases and
the RAB OFF indicator will illuminate. - Ice, snow or mud is adhered to
the sonar sensors or the rear
bumper near the sonar sensor
- Objects are too close to the rear
bumper when the select lever is set
to the “R” position
- The system detects sounds of a
similar frequency to the RAB sonar - When the TRAC mode and

Vehicle Stability Control (VSC)
mode are turned off
- When in TRACK mode and the
Pre-Collision Braking System has
been turned off
■ Canceling the Reverse Auto -
matic Braking (RAB) System
OperationThe Reverse Automatic Braking (RAB)
system can be temporarily canceled by
any of the following operation.
 While the vehicle is stopped by the
operation of automatic braking, the brake
pedal is depressed.
 While the vehicle is stopped by the
operation of automati c braking, the accel-
erator pedal is depressed.
 The accelerator pedal is depressed
continuously (In this case, limited acceler-
ation will be canceled and the vehicle will
continue reversing.)
 The select lever is shifted to a position
other than the “R” position.NOTEThe system will be canceled if the
object is no longer detected.
WARNING
Depress the brake pedal immedi-
ately after the system stops the
vehicle by automatic braking.
Depending on the conditions of the
road surface and tires, the vehicle
may not remain stopped, possibly
leading to an accident.
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Reverse Automatic Braking (RAB) System (If Equipped)
286■Reverse Automatic Braking
(RAB) System ON/OFF
SettingWhile the select lever is shifted to the “R”
position, the below functions of the
Reverse Automatic Braking (RAB) system
can be set by operating the center infor-
mation display.1) ON setting key of Automatic Braking
function
2) OFF setting key of Automatic Braking
function
3) ON setting key of the Sonar Audible
Alarm function
4) OFF setting key of the Sonar Audible
Alarm functionWhen the ON setting key is shown, the
corresponding setting is ON. Touch the ON setting key to turn the

setting OFF.
When the OFF setting is shown, the corre-
sponding setting is OFF.
Touch the OFF setting key to turn the
setting ON.
When the Automatic Braking function are
turned OFF, the following indicator(s) will
illuminate.
The RAB OFF indicator will turn off when
the corresponding function is turned ON.
NOTEWhen the settings cannot be changed,
the ON/OFF setting key will be grayed
out.
Also, the following settings can be
changed by operating the center informa-
tion display. 
Warning volume
 Sonar Audible Alarm
 Automatic Braking
For details, refer to "Car settings" P165.
■ RAB Warning IndicatorIf the Reverse Automatic Braking (RAB)
system malfunctions, the above indicator
illuminates on the combination meter.
Contact the nearest SUBARU dealer for
details.■ Handling of the Sonar
SensorsThe 4 sonar sensors are located in the
rear bumper. To ensure the proper opera-
tion of the Reverse Automatic Braking
(RAB) system, observe the following
precautions.
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New Vehicle Break-In Driving – the First 1,000 miles (1,600 km)
2908-1. New Vehicle Break-In
Driving – the First 1,000 miles (1,600 km)The performance and long life of your
vehicle are dependent on how you handle
and care for your vehicle while it is new.
Follow these instructions during the first
1,000 miles (1,600 km):
 Do not race the engine. And do not
allow engine speed to exceed 4,000 rpm
except in an emergency.
 Do not drive at one constant engine or
vehicle speed for a long time, either fast or
slow.
 Avoid starting suddenly and rapid
acceleration, except in an emergency.
 Avoid hard braking, except in an emer-
gency.
The same break-in procedures should be
applied to a newly installed or overhauled
engine or when brake pads are replaced
with new ones.
8-2. Fuel Economy HintsThe following suggestions will help to
save your fuel.
 Select the proper gear position for the
speed and road conditions.
 Avoid sudden acceleration or decelera-
tion. Always accelerate gently until you
reach the desired speed. Then try to main-
tain that speed for as long as possible.
 Do not pump the accelerator and avoid
racing the engine.
 Avoid unnecessary engine idling.
 Keep the engine properly tuned.
 Keep the tires inflated to the correct
pressure shown on the tire inflation pres-
sure label, which is located on the driver’s
center pillar. Low pressure will increase
tire wear and fuel consumption.
 Use the air conditioner only when
necessary.
 Keep the front and rear wheels in
proper alignment.
 Avoid carrying unnecessary luggage or
cargo.
8-3. Engine Exhaust Gas (Carbon Monoxide)
WARNING
 Never inhale engine exhaust gas.
Engine exhaust gas contains
carbon monoxide, a colorless
and odorless gas which is
dangerous, or even lethal, if
inhaled. Always properly maintain the
engine exhaust system to prevent
engine exhaust gas from entering
the vehicle. Never run the engine in a closed
space, such as a garage, except
for the brief time needed to drive
the vehicle in or out of it. Avoid remaining in a parked
vehicle for a long time while the
engine is running. If that is
unavoidable, then use the ventila-
tion fan to force fresh air into the
vehicle. Always keep the front ventilator
inlet grille free from snow, leaves
or other obstructions to ensure
that the ventilation system
always works properly.
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