stop start SUBARU BRZ 2022 Owner's Guide

Hill Start Assist System
258In both these cases, the Hill start assist
system operates under the following
conditions.
 The clutch pedal is depressed while the
brake pedal is also depressed (MT
models).
 The vehicle has stopped with the brake
pedal depressed (AT models).
Braking power is maintained temporarily
(for approximately 2 seconds) by the Hill
start assist system after the brake pedal is
released. The driver is therefore able to
start the vehicle in the same way as on a
level grade, just using the clutch pedal
(MT models only) and accelerator pedal
(all models).
If the braking power of the Hill start assist
system is insufficient after the brake pedal
is released, apply more braking power by
depressing the brake pedal again.
The Hill start assist system may not
operate on slight grades. Also, the Hill
start assist system does not operate in the
following cases.
When starting backward facing uphill
 When starting forward facing downhill
 While the parking brake is applied
 While the ignition switch is in the “ACC”
or “OFF” position 
While the Hill start assist indicator light
is illuminated. Refer to "Hill Start Assist
Indicator Light" P150.
When using the Hill start assist system, a
braking effect may be felt even after the
brake pedal has been released. However,
for MT models, this braking effect should
disappear once the clutch pedal is
released.
NOTEA slight jolt may be felt when the vehi-
cle begins to move forward after being
reversed.
701109
CAUTION
The braking power of the Hill start
assist system may not be sufficient
when strong braking power is
needed (e.g., when towing a trailer).
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BSD/RCTA (If Equipped)
271
Starting and Operating7
– CONTINUED –
NOTEIn the following cases, the BSD/
RCTA will stop operating and the BSD/
RCTA warning indicator will appear. - When a malfunction occurs in
the system, including the BSD/
RCTA approach indicator light
 If the BSD/RCTA warning indicator
appears, exercise proper caution. For
details, refer to "BSD/RCTA Warning
Indicator" 
P274.
 In the following cases, the BSD/
RCTA will temporarily stop operating
(or may stop operating) and the BSD/
RCTA OFF indicator will appear. - When the radar sensor becomes
significantly misaligned (If the orien-
tation of the radar sensor is shifted
for any reason, readjustment is
required. Have the sensor adjusted
at a SUBARU dealer.)
- When a large amount of snow or
ice sticks to the rear bumper surface
around the radar sensors
- When the vehicle is driven on a
snow-covered road or in an environ-
ment in which there are no objects
around (such as in a desert) for a
prolonged period of time
- When the temperature around
the radar sensors increases exces-
sively due to long driving on uphill
grades in the summer, etc. - When the temperature around
the radar sensors becomes
extremely low
- When the vehicle battery voltage
lowers
- When the vehicle voltage
exceeds the battery voltage rating
The BSD/RCTA will resume operation
once these conditions are corrected,
and the BSD/RCTA OFF indicator will
disappear. However, if the BSD/RCTA
OFF indicator appears for a prolonged
period of time, have the system
inspected at a SUBARU dealer as soon
as possible.
 The detectability of the radar
sensors is restricted. The BSD/RCTA
detection may be impaired and the
system may not operate properly
under the following conditions. - When the rear bumper around
the radar sensors is distorted
- When ice, snow or mud adheres
to the rear bumper surface around
the radar sensors
- When stickers, etc. are affixed on
the areas of the radar sensors on the
rear bumper
- During adverse weather condi-
tions such as rain, snow or fog
- When driving on wet roads such
as snow-covered roads and through
puddles 
The radar sensors may not detect or
may have difficulty detecting the
following vehicles and objects. - Small motorcycles, bicycles,
pedestrians, stationary objects on
the road or road side, etc.
- Vehicles with body shapes that
the radar may not reflect (vehicles
with lower body height such as a
trailer with no cargo and sports
cars)
- Vehicles that are not
approaching your vehicle even
though they are in the detection area
(either on a neighboring lane to the
rear or beside your vehicle when
reversing) (The system determines
the presence of approaching vehi-
cles based on data detected by the
radar sensors.)
- Vehicles traveling at signifi-
cantly different speeds
- Vehicles driving in parallel at
almost the same speed as your
vehicle for a prolonged time
- Oncoming vehicles
- Vehicles in a lane beyond the
neighboring lane
- Vehicles travelling at a signifi-
cantly lower speed that you are
trying to overtake
 On a road with extremely narrow
lanes, the system may detect vehicles
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BSD/RCTA (If Equipped)
273
Starting and Operating7
– CONTINUED –
- When both your vehicle and a
vehicle driving on a neighboring lane
are driving on the far side of each lane.
- When several narrowly-spaced
vehicles are approaching in a row
- In low radius bends (tight bends or
when making turns at an intersection)
- When there is a difference in height
between your lane and the neighboring
lane
- Immediately after the BSD/RCTA is
activated by touching “BSD/RCTA”
- Immediately after the shift lever/
select lever is shifted to the “R” position
- When extremely heavy cargo is
loaded in the trunk
 During reversing, operation of the BSD/
RCTA approach indicator light and the
warning buzzer may be delayed or the
system may fail to issue these warnings
under the following conditions.
- When backing out of an angled
parking space
- When a large-sized vehicle is
parked next to your vehicle (That
vehicle prevents the propagation of
radar waves.)
- When reversing on sloped roads
- When reversing at a high speed 
The BSD/RCTA approach indicator
light may illuminate when driving close to
solid objects on the road or road side
(such as guardrails, tunnels and side-
walls).
 When turning at an intersection in
urban areas, or a multilane intersection,
the BSD/RCTA approach indicator light
may flash.
 If a building or a wall exists in the
reversing direction, the BSD/RCTA
approach indicator light may flash and the
warning buzzer may sound.
 In the following cases, the system may
detect a vehicle driving two lanes away
from your vehicle.
- When your vehicle drives on the
near side of its lane from the corre-
sponding vehicle - When the vehicle driving two lanes
away drives on the near side of its lane
from your vehicle
■
BSD/RCTA OFF Indicator
▼
System temporary stops1) BSD/RCTA temporary stop message
2) BSD/RCTA OFF indicatorThis display appears when the system is
used at extremely high or low tempera-
tures or when abnormal voltage exists.
Once these conditions are corrected, the
system will recover from the temporary
stop condition and the indicator will disap-
pear.
If the indicator remains displayed for a
prolonged time, have the system
inspected at a SUBARU dealer.
702802
1
2
702877
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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)
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
702891
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.
702810
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Loading Your Vehicle
297
Driving Tips8
– CONTINUED –
Remember to drive with care at all times
regardless of the type of tires on your
vehicle.■
Tire Chains
NOTE
When tire chains cannot be used, use
of another type of traction device
(such as spring chains) may be
acceptable if use on your vehicle is
recommended by the device manufac-
turer, taking into account tire size and
road conditions. Follow the device
manufacturer’s instructions, espe-
cially regarding maximum vehicle
speed.
To help avoid damage to your vehicle,
drive slowly, readjust or remove the
device if it is contacting your vehicle,
and do not spin your wheels. Damage
caused to your vehicle by use of a
traction device is not covered under
warranty.
Make certain that any traction device
you use is an SAE class S device, and use it on the rear wheels only. Always
use the utmost care when driving with
a traction device. Overconfidence
because you are using a traction
device could easily lead to a serious
accident.
■
Rocking the Vehicle
If you must rock the v
ehicle to free it from
snow, sand, or mud, depress the acceler-
ator pedal slightly and move the shift
lever/select lever back and forth between
“1” (MT model)/“D” (AT model) and “R”
repeatedly. Do not race the engine. For
the best possible traction, avoid spinning
the wheels when trying to free the vehicle.
When the road surface is extremely slip-
pery, you can obtain better traction by
starting the vehicle with the transmission
in 2nd than in 1st (MT models).
If your vehicle is a AT model, Snow mode
can be used. For details about how to use
the mode, refer to "Driving Mode Select
Switch (If Equipped)" P241.
8-9. Loading Your Vehicle
CAUTION
Tire chains cannot be used on your
vehicle because of the lack of clear-
ance between the tires and vehicle
body.
WARNING
Never allow passengers to ride on a
folded rear seatback or in the trunk.
Doing so may result in serious
injury.
WARNING
 Never stack luggage or other
cargo higher than the top of the
seatback because it could tumble
forward and injure passengers in
the event of a sudden stop or
accident. Keep luggage or cargo
low, as close to the floor as
possible.
100094
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Flat Tires
304
NOTEContact a SUBARU dealer when jack-
ing up the vehicle using a garage jack.
1. Park on a hard, level surface, when-
ever possible, then stop the engine.
2. Set the parking brake securely and
shift the shift lever in reverse (MT models)
or the select lever to the “P” (Park) posi-
tion (AT models).
3. Turn on the hazard warning flasher
and unload all occupants and luggage
from the vehicle.
4. Put wheel blocks at the front and rear
of the tire diagonally opposite the flat tire.5. Take out the jack, jack handle and
wheel nut wrench.
The tools and the spare tire are stored
under the floor of the trunk. Refer to
"Maintenance Tools"
P302.
NOTEMake sure that the jack is well lubri-
cated before using it.
6. Models with spare tire: Take out the
under-floor storage compartment and turn
the attaching bolt counterclockwise, then
take the spare tire out.
 Always turn off the engine before
raising the flat tire off the ground
using the jack. Never swing or
push the vehicle supported with
the jack. The jack can come out of
the jacking point due to a jolt and
this can result in serious injury or
death. All passengers must exit the
vehicle before you raise it with
the jack. Raising the vehicle with
someone inside of it could result
in serious injury or death.Do not start the vehicle while it is
supported by the jack. Doing so
could result in serious injury or
death.
CAUTION
Do not hit and bend the disc rotor
backing plate when removing and
installing the tire. A bent backing
plate may scrape against the disc
rotor and cause noise while the
vehicle is in motion.
901050
901295
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If Your Vehicle Is Involved in an Accident
328Error A
Error B1. Park the vehicle in a safe place.
2. Turn the ignition switch once to the
“OFF” position, then start the engine.
1) Volume button3. If the center information display
cannot be recovered even though the
engine has been restarted, press and hold
the volume button for more than 10
seconds. The center information display
will start up again.
4. If the center information display is not
recovered by restarting it, contact your
SUBARU dealer.
9-9. If Your Vehicle IsInvolved in an Accident■
To Restart the Engine When
Involved in an Accident
Your vehicle has a fuel pump shut off
system. When the vehicle sustains an
impact in an accident, etc., the fuel pump
shut off system stops supplying the fuel in
order to minimize fuel leakage.
However, depending on the impact condi-
tions at the time of collision, the fuel pump
shut-off system may not operate.
901093901094
1
901213
CAUTION
If your vehicle is involved in an
accident, be sure to inspect the
ground under the vehicle before
restarting the engine. If you find
that fuel has leaked on the ground,
do not try to rest art the engine. The
fuel system has been damaged and
is in need of repair. Immediately
contact the nearest automotive ser-
vice facility. We recommend that
you consult your SUBARU dealer.
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Maintenance Precautions
340NOTESUBARU does not endorse the use of
non-SUBARU approved flushing sys-
tems and strongly advises against per-
forming these services on a SUBARU
vehicle. Non-SUBARU approved flush-
ing systems use chemicals and/or sol-
vents which have not been tested or
approved by SUBARU. SUBARU war-
ranties do not cover any part of the
vehicle which is damaged by adding or
applying chemicals and/or solvents
other than those approved or recom-
mended by SUBARU.
■
Before Checking or
Servicing in the Engine
Compartment
■
When Checking or Servicing
in the Engine Compartment
Do not tamper wi th the wiring of
the SRS airbag system or seatbelt
pretensioner system, or attempt
to take its connectors apart, as
that may activate the system or it
can render it inoperative. NEVER
use a circuit tester for these
wiring. If your SRS airbag or
seatbelt pretensioner needs
service, consult your nearest
SUBARU dealer. Check the inside of the engine
compartment to see if there are
any cloths and tools left. If they
are left inside, they may be a
cause of malfunction and fire.
WARNING
Always stop the engine and apply
the parking brake to prevent the
vehicle from moving.Always let the engine cool down.
Engine parts become very hot
when the engine is running and
remain hot for some time after the
engine is stopped.Do not spill engine oil, engine
coolant, brake fluid or any other
fluid on hot engine components.
This may cause a fire.When the ignition switch is in the
“ON” position, the cooling fan
may operate suddenly even when
the engine is stopped. If your
body or clothes come into
contact with a rotating fan, that
could result in serious injury. To
avoid risk of injury, always turn
the push-button i gnition switch to
the “OFF” position and confirm
that the operation indicator on
the switch is turn ed off. Then take
the access key fob out from the
vehicle.
 Before performing any servicing
on a vehicle equipped with a
remote engine start system
temporarily place that system in
the service mode to prevent it
from unexpectedly starting the
engine.
B02092
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Index
413
Index14
Driving distance ................................................................... P153
Driving mode select switch .................................................. P241
Driving range ....................................................................... P153
Driving support system setting display ................................ P157
Driving time ......................................................................... P153EElectrical system ................................................................. P385
Electronic Brake Force Distribution (EBD) system .............. P246
Warning........................................................................... P141
Emergency Locking Retractor (ELR ) ..................................... P40
Engine
Compartment overview ................................................... P345
Coolant............ .......................................... ............ P349, P384
Exhaust gas (carbon monoxide) . .............................. P7, P290
Hood ............................................................................... P343
Hood release knob ........ .......................................... ........ P343
Oil............................ ..................................... ......... P346, P381
Overheating .................................................................... P319
Start & stopping ......... ................................................ ..... P229
Engine oil temperature gauge ............................................. P153
Event data recorder ............................................................... P11
Exclusive content for SUBARU BRZ ................................... P154
Exterior care ........................................................................ P332FFlat tire ................................................................................ P303
Flat tire repair kit .................................................................. P309 Technical data of air compressor .................................... P314 Floor mat.............................................................................. P218
Fluid level
Automatic transmission .............. ..................................... P352
Brake ............................................................................... P353
Clutch .............................................................................. P354
Front
Passenger’s frontal airbag ON and OFF ........................... P71
Seatbelt pretensioners ...................................................... P44
Front seats ............................................................................. P30 Forward and backward adjustment ................................... P33
Head restraint adjustment .......... ....................................... P34
Manual seat............... ........................................................ P33
Reclining ........................................................................... P33
Seat heater.......... ........................................................ ...... P35
Seat height adjustment (driver's seat) ............................... P33
Fuel ...................................................................................... P223 Economy hints.............. .................................... ............... P290
Filler door and cap .......................................................... P224
Filler lid and cap .............................................................. P224
Gauge ............................................................................. P129
Requirements .......................... ..............................P223, P381
Tank capacity .................................................................. P381
Fuel consumption Average fuel consumption............................................... P153
Current fuel consumption ................................................ P153
Fuses ................................................................................... P371
GGasoline............................................................................... P223
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