wheel SUBARU BRZ 2022 Service Manual

Hill Start Assist System
257
Starting and Operating7
When parking on a hill, always turn the
steering wheel. When the vehicle is
headed up the hill, the front wheels should
be turned away from the curb.
When facing downhill, the front wheels
should be turned into the curb.
7-17. Hill Start Assist SystemThe Hill start assist system is a device tomake the following vehicle operations
easier.
1) Starting forward facing uphill
2) Starting backward facing downhill
A) Brake pedal (both MT models and AT
models)
B) Clutch
pedal (MT models only)
CAUTION
If your vehicle has a front under-
spoiler and rear underspoiler (both
optional), pay attention to blocks
and other obstructions on the
ground when parking. The under-
spoilers could be damaged by con-
tact with them.
700898
WARNING
The Hill start assist system is a
device only for helping the driver
to START the vehicle on an uphill
grade. To prevent accidents when
the vehicle is parked on a slope,
be sure to firmly set the parking
brake. When setting the parking
brake, make sure that the vehicle
remains stationary when the
clutch pedal (MT models) and
brake pedal (both MT and AT
models) are released.Do not turn the ig nition switch to
the “OFF” position while the Hill
start assist system is operating.
The Hill start assist system will be
deactivated and may lead to an
accident.
1
2 BA
701116
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– CONTINUED –

BSD/RCTA (If Equipped)
275
Starting and Operating7
– CONTINUED –
- When a bicycle carrier or other
item is fitted to the rear of the
vehicle
- When using a chassis dynamom-
eter or free roller device, etc.
- When running the engine and
making the wheels rotate while
lifting up the vehicle
 If the ignition switch is turned to the
“OFF” position, the last known status
of the system is maintained. For
example, if the ignition switch is turned
to the “OFF” positi on with the BSD/
RCTA deactivated, the BSD/RCTA
remains deactivated the next time the
ignition switch is turned to the “ON”
position.
■
Certification for the BSD/
RCTA
 The U.S. and other FCC compliant
countries
FCC ID: OAYSRR3A This device complies with part 15 of the
FCC Rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-
ence received, including interference that
may cause undesired operation.

Canada-spec. models
CAUTION
FCC WARNINGChanges or modifications not
expressly approved by the party
responsible for compliance could
void the user’s authority to operate
the equipment.
702883
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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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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
295
Driving Tips8
– CONTINUED –
When parking for long periods in cold
weather, you should observe the following
tips.
1. For MT models, place the shift lever in
the “1” or “R” position. For AT models,
place the select lever in the “P” position.
2. Use tire stops under the tires to
prevent the vehicle from moving.
▼
Refueling in cold weather
To help prevent moisture from forming in
the fuel system and t he risk of its freezing,
use of an antifreeze additive in the fuel
tank is recommended during cold
weather.
Use only additives that are specifically
designed for this purpose. When an anti-
freeze additive is used, its effect lasts
longer if the tank is refilled whenever the
fuel level reaches half empty.
If your SUBARU is not going to be used for
an extended period, it is best to have the
fuel tank filled to capacity.
■
Driving on Snowy and Icy
Roads
To prevent skidding and slipping, avoid
sudden braking, abrupt acceleration, high-
speed driving, and sharp turning when
driving on snowy or icy roads.
Always maintain ample distance between
your vehicle and the vehicle ahead of you
to avoid the need for sudden braking.
To supplement the foot brake, use the
engine brake effectively to control the
vehicle speed. (Shift into a lower gear
when necessary.) Avoid shifting down abruptly. Such
behavior can cause the wheels to lock,
possibly leading to loss of vehicle control.
An anti-lock brake system (ABS)
enhances your vehicle’s braking perfor-
mance on snowy and icy roads. For infor-
mation about braking on slippery
surfaces, refer to "ABS (Anti-Lock Brake
System)"
P245 and "Vehicle Stability
Control (VSC)/TRAC System" P247.
For AT models, use the Snow mode when
driving on snowy or icy roads. For details
about how to use the mode, refer to
"Driving Mode Select Switch (If
Equipped)"  P241.
▼
Wiper operation when snowing
Before driving in cold weather, make sure
the wiper blade rubbers are not frozen to
the windshield.
If the wiper blade rubbers are frozen to the
windshield, use the defroster with the
airflow selection in “ ” and the tempera-
ture set for maximum warmth until the
wiper blade rubbers are completely
thawed. Refer to "Cli mate Control Panel"
 P198.
Snow stuck on the wiper arm prevents the
wiper from working effectively. If snow is
stuck on the wiper arm, pull off the road to
a safe place, then remove it. If you stop
the vehicle at road side, use the hazard
WARNING
Do not use the cruise control on
slippery roads such as snowy or icy
roads. This may cause loss of vehi-
cle control.
CAUTION
Avoid prolonged continuous driving
in snowstorms. Snow will enter the
engine’s intake system and may
hinder the airflow, which could
result in engine shutdown or even
breakdown.
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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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In Case of Emergency9
In Case of Emergency
9-1. If You Park Your Vehicle in an Emergency.......302
9-2. Maintenance Tools..............................................302
Models with Flat Tire Repair Kit ..................................303
Models with Spare Tire ................................................303
9-3. Flat Tires ..............................................................303
Changing a Flat Tire .....................................................303
Sealing a Flat Tire (Models with the Flat Tire Repair Kit) ...........................................................306
Tire Pressure Monitoring System (TPMS) (If Equipped) ...............................................................315
TPMS Screen (If Equipped)..........................................316
9-4. Jump Starting ......................................................316
Battery Precautions......................................................316
How to Jump Start ........................................................317
9-5. Engine Overheating ............................................319
If Steam Is Coming from the Engine Compartment ..............................................................319 If No Steam Is Coming from the Engine
Compartment ............................................................. 319
9-6. Towing .................................................................320
Towing Hook and Tie-Down Hooks/Holes ................. 320
Using a Flat-Bed Truck................................................ 324
Towing with All Wheels on the Ground ..................... 324
9-7. Access Key Fob – If Access Key Fob Does
Not Operate Properly ...... ..................................325
Locking and Unlocking ............................................... 326
Switching Power Status .............................................. 326
Starting Engine ............................................................ 326
9-8. Malfunctions of the Center Information
Display ...............................................................327
9-9. If Your Vehicle Is Invo lved in an Accident ........328
To Restart the Engine When Involved in an
Accident ..................................................................... 328
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If You Park Your Vehicle in an Emergency
3029-1. If You Park Your Vehiclein an EmergencyThe hazard warning flasher should be
used in day or night to warn other drivers
when you have to park your vehicle under
emergency conditions.
Avoid stopping on the road. It is best to
safely pull off the road if a problem occurs.
The hazard warning flasher can be acti-
vated regardless of the ignition switch
position.
Turn on the hazard warning by pressing
the hazard warning flasher switch. Turn it
off by pressing the switch again.
When the hazard warning flasher are
flashing, the corresponding turn signal
indicator will also flash.
NOTEWhen the hazard warning flasher is on,
the turn signals do not work.
9-2. Maintenance ToolsYour vehicle is equipped with the following
maintenance tools.
Jack
 Jack handle
 Screwdriver
 Towing hook (eye bolt)
 Wheel nut wrench
901197
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Flat Tires
303
In Case of Emergency9
– CONTINUED –
■
Models with Flat Tire Repair
Kit1) Under-floor storage compartment
2) Jack handle
3) Wheel nut wrench
4) Jack
5) Towing hook (eye bolt)6) Screwdriver
7) Flat tire repair kit
■
Models with Spare Tire1) Spare tire
2) Jack handle
3) Wheel nut wrench
4) Jack
5) Towing hook (eye bolt)
6) Screwdriver
9-3. Flat TiresIf you have a flat tire while driving, never
brake suddenly; keep driving straight
ahead while gradually reducing speed.
Then slowly pull off the road to a safe
place.■
Changing a Flat Tire
1
6
4
7
5
2
3901198
1
6
45
2
3901216
WARNING

Use only the jack and the jack
handle provided with your
vehicle. The jack supplied with
the vehicle is designed only for
changing a tire. Never get under
the vehicle while supporting the
vehicle with this jack.Do not jack up the vehicle on an
incline or a loose road surface.
The jack can come out of the
jacking point or sink into the
ground and this can result in
serious injury or death.Before jacking up the vehicle, be
sure that there are no occupants
or cargo on board.Do not jack up the vehicle with an
object on or underneath the jack.
The jack can be unstable and this
can result in a severe accident.
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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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