tires SUBARU BRZ 2023 User Guide

Vehicle Stability Control (VSC)/TRAC System
247
Starting and Operating7
– CONTINUED –
7-13. Vehicle Stability Control (VSC)/TRAC System■Vehicle Stability Control
(VSC) SystemIn the event of wheelspin and/or skidding
on a slippery road surface and/or during
cornering and/or an evasive maneuver,
the Vehicle Stability Control (VSC) system
adjusts the engine’s output and the
wheels’ respective braking forces to help
maintain traction and directional control.
The skid suppression function is designed
to help maintain directional stability by
suppressing the wheels’ tendency to slide
sideways during steering operations. Acti-
vation of this function is indicated by
flashing of the Vehicle Stability Control
(VSC) operation indicator light.NOTE In the following circumstances, the
vehicle may be less stable than it feels
to the driver. The Vehicle Stability
Control (VSC) system may therefore
operate. Such operation does not indi-
cate a system malfunction. - On gravel-covered or rutted
roads
- On unfinished roads
- When the vehicle is fitted with
snow tires or winter tires 
Activation of the Vehicle Stability
Control (VSC) system will cause opera-
tion of the steering wheel to feel
slightly different compared to that for
normal conditions.
 It is always important to reduce
speed when approaching a corner,
even if the vehicle is equipped with
Vehicle Stability Control (VSC) system.
 Always turn off the engine before
replacing a tire as failure to do so may
render the Vehicle Stability Control
(VSC) system unable to operate
correctly.
■ TRAC SystemThe TRAC system is designed to prevent
spinning of the driving wheels on slippery
road surfaces, thereby helping to maintain
traction and directional control. Activation
of this function is indicated by flashing of
the Vehicle Stability Control (VSC) opera-
tion indicator light. The TRAC system is
also equipped with the brake LSD func-
tion.
WARNING
 Directional control and power
may not be achievable while
driving on slippery road surfaces,
even if the TRAC system is oper-
ating. Do not drive the vehicle in
conditions where stability and
power may be lost. Always use the utmost care in
driving – overconfidence
because you are driving with a
Vehicle Stability Control (VSC)
system and TRAC system
equipped vehicle could easily
lead to a serious accident.
CAUTION
 Even if your vehicle is equipped
with Vehicle Stability Control
(VSC) system and TRAC system,
winter tires should be used when
driving on snow-covered or icy
roads; in addition, vehicle speed
should be reduced considerably.
Simply having a Vehicle Stability
Control (VSC) system and TRAC
system does not guarantee that
the vehicle will be able to avoid
accidents in any situation.
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Vehicle Stability Control (VSC)/TRAC System
248
NOTEThe Vehicle Stability Control (VSC)
system and TRAC system may be con-
sidered normal when the following
conditions occur.
 Slight twitching of the brake pedal is
felt. 
The vehicle or steering wheel
shakes to a small degree.
 An operating noise from the engine
compartment is heard briefly when
starting the engine and when driving
off after starti ng the engine.
 The brake pedal seems to jolt when
driving off after st arting the engine.
■Vehicle Stability Control
(VSC) System MonitorRefer to "Vehicle Stability Control (VSC)
Warning Light/Vehicle Stability Control
(VSC) Operation Indicator Light" P142
and "Vehicle Stability Control (VSC) OFF
Indicator Light" P143.■ Vehicle Stability Control
(VSC) OFF Switch
Activation of the Vehicle Stability
Control (VSC) system and TRAC
system is an indication that the
road being travelled on has a slip-
pery surface; since having
Vehicle Stability Control (VSC)
and TRAC is no guarantee that
full vehicle control will be main-
tained at all times and under all
conditions, its activation should
be seen as a sign that the speed
of the vehicle should be reduced
considerably. Whenever suspension compo-
nents, steering components, or
an axle are removed from a
vehicle equipped with the Vehicle
Stability Control (VSC) system
and TRAC system, have an
inspection of that system
performed by an authorized
SUBARU dealer. The following precautions should
be observed in order to ensure
that the Vehicle Stability Control
(VSC) system and TRAC system
is operating properly.
- All four wheels should be
fitted with tires of the same
size, type, and brand. Further-
more, the amount of wear
should be the same for all four
tires.- Keep the tire pressure at the
proper level as shown on the
label attached to the driver’s
side center pillar.- When replacing a flat tire, use
only the specified temporary
spare tire. However, even with
the specified temporary spare
tire, the effectiveness of the
Vehicle Stability Control (VSC)
system and TRAC system will
be reduced.
 If non-matching tires are used,
the Vehicle Stability Control
(VSC) system and TRAC system
may not operate correctly.
702785
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Tire Pressure Monitoring System (TPMS) (If Equipped)
252
WARNING
If the low tire pressure warning
light illuminates while driving,
never brake suddenly. Instead,
perform the following procedure.
Otherwise an accident involving
serious vehicle damage and
serious personal injury could
occur.
(1) Keep driving straight ahead
while gradually reducing
speed.(2) Slowly pull off the road to a
safe place.(3) Check the pressure for all
four tires and adjust the pres-
sure to the COLD tire pres-
sure shown on the tire
inflation pressure label on the
center pillar on the driver’s
side.
 Even when the vehicle is driven a
very short distance, the tires get
warm and their pressures
increase accordingly. Be sure to
let the tires cool thoroughly
before adjusting their pressures
to the standard values shown on
the tire inflatio n pressure label.
Refer to "Tires and Wheels"
 P358. The tire pressure moni-
toring system does not function
when the vehicle is stationary.
After adjusting the tire pressures,
increase the vehicle speed to at
least 25 mph (40 km/h) to start the
TPMS rechecking of the tire infla-
tion pressures. If the tire pres-
sures are now above the severe
low pressure threshold, the low
tire pressure warning light should
turn off a few minutes later.
If this light still illuminates while
driving after adjusting the tire
pressure, a tire may have signifi-
cant damage and a fast leak that
causes the tire to lose air rapidly.
For details, refer to "Flat Tires"
 P303.
 When a spare tire is mounted or a
wheel rim is replaced without the
original pressure sensor/trans-
mitter being transferred, the low
tire pressure warning light will
illuminate steadily after blinking
for approximately one minute.
This indicates the TPMS is unable
to monitor all fo ur road wheels.
Contact your SUBARU dealer as
soon as possible for tire and
sensor replacement and/or
system resetting.
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Tire Pressure Monitoring System (TPMS) (If Equipped)
253
Starting and Operating7
– CONTINUED –
■Certification for the ReceiverFCC ID: HYQ23ABGNOTEThis device complies with part 15 of
the FCC Rules. Operation is subject to
the following two conditions: (1) This
device may not cause harmful interfer-
ence, and (2) this device must accept
any interference received, including
interference that may cause unde-
sired operation.
FCC WARNING
Changes or modifications not
expressly approved by the party
responsible for compliance could void
the user’s authority to operate the
equipment.
■ Certification for the Trans -
mitter U.S.-spec. models
FCC ID: PAXPMVE000NOTEThis device complies with part 15 of
the FCC Rules. Operation is subject to
the following two co nditions: (1) This
device may not cause harmful interfer-
ence, and (2) this device must accept
any interference received, including
interference that may cause unde-
sired operation.
FCC WARNING
Changes or modifications not
expressly approved by the party
responsible for compliance could void
the user’s authority to operate the
equipment.
 Mexico-spec. models
MEX: RLVPAPM17-1337
 When a tire is repaired with liquid
sealant, the tire pressure warning
valve and transmitter may not
operate properly. If a liquid
sealant is used, contact your
nearest SUBARU dealer or other
qualified service shop as soon as
possible. Make sure to replace
the tire pressure warning valve
and transmitter when replacing
the tire. You may reuse the wheel
if there is no damage to it and if
the sealant residue is properly
cleaned off. Do not inject any tire
liquid or aerosol tire sealant into
the tires, as this may cause a
malfunction of the tire pressure
sensors. If the light illuminates
steadily after blinking for approx-
imately one minute, promptly
contact a SUBARU dealer to have
the system inspected.
CAUTION
Do not place metal film or any metal
parts under the driver’s seat. This
may cause poor reception of the
signals from the tire pressure sen-
sors, and the tire pressure monitor-
ing system will not function
properly.
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Tire Pressure Monitoring System (TPMS) (If Equipped)
254■TPMS ScreenThis screen displays ea ch tire pressure.
Refer to "Drive Information" P153.■ Initializing the Tire Pressure
Monitoring SystemWhen setting the tire inflation pressure
above the specified level, initialize the tire
pressure monitoring system.
When the tire pressure monitoring system
is initialized, the current tire inflation pres-
sure is set as the standard pressure.
■ How to Initialize the Tire
Pressure Monitoring System
(If Equipped)1. Park the vehicle in a safe place and
turn the ignition switch to the “OFF” posi-
tion.
Initialization cannot be performed while
the vehicle is moving.
2. Adjust the tire infl ation pressure to the
specified cold tire inflation pressure level.
Refer to "Tires" P385.
Make sure to adjust the tire pressure to
the specified cold tire inflation pressure
level. The tire pre ssure monitoring system
will operate based on this pressure level.
3. Turn the ignition switch to the “ON”
position. 4. Press and hold the TPMS set switch

until the low tire pressure warning light
blinks slowly 3 times.
■ If You Press the Tire Pres -
sure Monitoring Reset
Switch AccidentallyIf initialization is perf ormed, adjust the tire
inflation pressure to the specified level
and initialize the tire pressure monitoring
system again.■ Initialization ProcedureMake sure to carry out initialization
after adjusting the tire inflation pressure.
Also, make sure the tires are cold before
carrying out initialization or tire inflation
pressure adjustment.
 If you have accidentally turned the igni-
tion switch to the “OFF” position during
initialization, it is not necessary to press
the TPMS set switch again as initialization
will restart automatically when the engine
is restarted.
 If you accidentally press the TPMS set
switch when initialization is not necessary,
adjust the tire inflation pressure to the
specified level when the tires are cold, and
conduct initialization again.
702781
702838
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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)
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.
702810
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Driving Tips8
Driving Tips
8-1. New Vehicle Break-In Driving – the First 
1,000 miles (1,600 km) ......................................290
8-2. Fuel Economy Hints ...................... .....................290
8-3. Engine Exhaust Gas (Carbon Monoxide) .........290
8-4. Catalytic Converter .............................................291
8-5. Periodic Inspections ...........................................292
8-6. Driving in Foreign Coun tries .............................292
8-7. Driving Tips .........................................................292
8-8. Winter Driving .....................................................293
Operation during Cold Weather ..................................293 Driving on Snowy and Icy Roads ............................... 295
Corrosion Protection ................................................... 296
Snow Tires.................................................................... 296
Tire Chains ................................................................... 297
Rocking the Vehicle..................................................... 297
8-9. Loading Your Vehicle .........................................297
Vehicle Capacity Weight ............................................. 298
GVWR and GAWR (Gross Vehicle Weight Rating

and Gross Axle Weight Rating) ................................ 299
8-10. Trailer Towing ...................................................299
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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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Periodic Inspections
2928-5. Periodic InspectionsTo keep your vehicle in the best condition
at all times, always have the recom-
mended maintenance services listed in
the maintenance schedule in the
“Warranty and Maintenance Booklet”
performed at the specified time or mileage
intervals.
8-6. Driving in Foreign Coun-triesWhen planning to use your vehicle in
another country:
 Confirm the availability of the correct
fuel. Refer to "F uel Requirements"
 P223.
 Comply with all regulations and
requirements of each country.
8-7. Driving Tips
WARNING
 Always maintain a safe driving
speed according to the road and
weather conditions in order to
avoid having an accident on a
sharp turn, during sudden
braking or under other similar
conditions. When replacing or installing
tire(s), all four tires must be the
same for the following items.
(a) Size(b) Speed symbol(c) Load index(d) Circumference(e) Construction(f) Manufacturer(g) Brand (tread pattern)(h) Degrees of wearFor items (a) to (c), you must
obey the specification that is
printed on the ti re inflation pres-
sure label. The tire inflation pres-
sure label is located on the
driver’s center pillar.
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