2022 SUBARU BRZ brake

Reverse Automatic Braking (RAB) System (If Equipped)
279
– CONTINUED –
Starting and Operating7
1) When reversing
2) When either strong automatic braking 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)
702041
1
4
2 Object Close Behind
3 Apply Brake To Hold Position 4
4
■
Operating ConditionsThe Reverse Automatic Braking (RAB)
system will operate when all of the
following conditions are met.
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" P286.
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Reverse Automatic Braking (RAB) System (If Equipped)
2801) 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
 The sonar audible alarm is set to “ON”.
 The vehicle speed is from 0 to 9 mph (0
to 15 km/h).
Automatic Braking
 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 cases, 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. - 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 sound 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.
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Reverse Automatic Braking (RAB) System (If Equipped)
281
Starting and Operating7
– CONTINUED –
- 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 in a vertical
direction.
 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. - The vehicle is significantly
inclined.
- The ground clearance is signifi-
cantly reduced due to the vehicle’s
loading condition, etc.
- When the sonar sensor is
misaligned due to a collision or an
accident.
Surrounding environment:
- A cloth banner, flag, hanging
branch or railroad crossing bars are
present in the reversing direction.
- When reversing on a gravel or
grassy area.
- When reversing in an area where
objects or walls are adjacent to the
vehicle such as narrow tunnels,
narrow bridges, narrow roads or
narrow garages.
- Wheel track or hole is present in
the ground of the reversing direc-
tion.
- When reversing over a drainage
cover (grating cover).
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Reverse Automatic Braking (RAB) System (If Equipped)
282
- The path of the reversing direc-
tion is inclined such as on a steep
uphill.
- When reversing downhill.- Reversing in a garage with a low
ceiling or a tunnel.
- A curb or step is present in the
reversing direction.
- There is a patch of snow rear-
ward.
- There is a puddle of water. - 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
When 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.
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Reverse Automatic Braking (RAB) System (If Equipped)
285
Starting and Operating7
– CONTINUED –
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. Until 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).
NOTEThe sonar audible alarm and auto-
matic braking are different in opera-
tion conditions. Therefore there are
cases in which only one of these func-
tions will activate.
▼
After the vehicle is stopped by the
systemAfter 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
1
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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
- 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) Sy stem
Operatio n
The Reverse Automatic Braking (RAB)
system can be temporarily canceled by
any of the following operation.
 While the vehicle is stopped by the
operation of automati c braking, the brake
pedal is depressed.
 While the vehicle is stopped by the
operation of automatic 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.
■
Reverse Automatic Braking
(RAB) System ON/OFF
Setting
While 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
2) OFF setting key of automatic braking
3) ON setting key of the sonar audible alarm
4) OFF setting key of the sonar audible alarmWhen the ON setting key is shown, the
corresponding setting is ON.
Touch and hold the ON setting key to turn
the setting OFF. When the OFF setting is shown, the corre-
sponding setting is OFF.
Touch and hold the OFF setting key to
turn the setting ON.
When the automatic braking are turned
OFF, the following indicator(s) will illumi-
nate.
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
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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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Winter Driving
294the one used previously, purge the old
fluid from the piping between the wind-
shield washer tank and washer nozzles by
operating the washer for a certain period
of time. Otherwise, if the concentration of
the fluid remaining in the piping is too low
for the outside temperature, it may freeze
and block the nozzles.▼
Before driving your vehicle
Before entering the vehicle, remove any
snow or ice from your shoes because that
could make the pedals slippery and
driving dangerous.
While warming up the vehicle before
driving, check that the accelerator pedal,
brake pedal, and all other controls operate
smoothly.
Clear away ice and snow that has accu-
mulated under the fenders to avoid
making steering difficult. During severe
winter driving, stop when and where it is
safe to do so and check under the fenders
periodically.
▼Parking in cold weather
CAUTION
 Adjust the washer fluid concen-
tration appropriately for the
outside temperature. If the
concentration is inappropriate,
sprayed washer fluid may freeze
on the windshield and obstruct
your view, and the fluid may
freeze in the windshield washer
tank.State or local regulations on vola-
tile organic compounds may
restrict the use of methanol, a
common windshield washer anti-
freeze additive. Washer fluids
containing non-methanol anti-
freeze agents should be used
only if they provide cold weather
protection without damaging
your vehicle’s paint, wiper blades
or washer system.
WARNING
Snow can trap dangerous exhaust
gases under your vehicle. Keep
snow clear of the exhaust pipe and
from around your vehicle if you
park the vehicle in snow with the
engine running.
CAUTION
Do not use the parking brake
when parking for long periods in
cold weather since it could freeze
in that position.When the vehicle is parked in
snow or when it snows, raise the
wiper blades off the glass to
prevent damage to them.Under either of the following
conditions, icing may develop on
the brake system, which could
cause poor braking action.
- When the vehicle has been left
parked after use on roads
heavily covered with snow- When the vehicle has been leftparked during a snowstormCheck for snow or ice buildup on
the suspension, disc brakes and
brake hoses underneath the vehi-
cle. If there is caked snow or ice,
remove it, being careful not to
damage the disc brakes and
brake hoses and ABS harness.
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