2023 SUBARU BRZ steering

Tires and Wheels
362Roadholding is good, and steering
is responsive. Rolling resistance is
low, so fuel consumption is also
lower.
 Under inflated tires (tread worn at
shoulders) Rolling resistance is high, so fuel
consumption is also higher.

Over inflated tires (tread worn in
center) Ride comfort is poor. Also, the tire

magnifies the effects of road
surface bumps and dips, possibly
resulting in vehicle damage.
B00050
B00051
WARNING
Driving at high speeds with
excessively low tire pressures
can cause the tires to deform
severely and to rapidly
become hot. A sharp increase
in temperature could cause
tread separation, and destruc-
tion of the tires. The resulting
loss of vehicle control could
lead to an accident.
B00052
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Tires and Wheels
363
Maintenance and Service11
– CONTINUED –
■Wheel BalanceEach wheel was correctly balanced
when your vehicle was new, but the
wheels will become unbalanced as
the tires become worn during use.
Wheel imbalance causes the
steering wheel to vibrate slightly at
certain vehicle speeds and detracts
from the vehicle’s straight-line
stability. It can also cause steering
and suspension system problems
and abnormal tire wear. If you
suspect that the wheels are not
correctly balanced, have them
checked and adjusted by your
SUBARU dealer. Also have them
adjusted after tire repairs and after
tire rotation.
NOTEThe suspension system is
designed to hold each wheel at a
certain alignment (relative to the
other wheels and to the road) for
optimum straight-line stability
and cornering performance.■ Wear Indicators1) New tread
2) Worn tread3)
Tread wear indicator
Each tire incorporates a tread wear
indicator, which becomes visible
when the depth of the tread grooves
decreases to 0.063 in (1.6 mm). A tire must be replaced when the

tread wear indicator appears as a
solid band across the tread.
NOTEFor safety, inspect the tire tread
regularly and replace the tires
before their tread wear indicators
become visible.
CAUTION
Loss of correct wheel align-
ment causes the tires to wear
on one side and reduces the
vehicle’s running stability.
Contact your SUBARU dealer
if you notice abnormal tire
wear.
12 3
B00327
WARNING
When a tire’s tread wear indi-
cator becomes visible, the tire
is worn beyond the accept-
able limit and must be
replaced immediately. With a
tire in this condition, driving at
high speeds in wet weather
can cause the vehicle to
hydroplane. The resulting loss
of vehicle control can lead to
an accident.
BRZ_U.book 363 ページ ２０２２年３月２９日　火曜日　午後３時５９分

Tire Information
397
Consumer Information and Reporting Safety Defects13
– CONTINUED –
The vehicle placard shows original
tire size, recommended cold tire
inflation pressure on each tire at
maximum loaded vehicle weight,
seating capacity and loading infor-
mation.▼ Adverse safety consequences
of under-inflation
Driving at high speeds with exces-
sively low tire pressures can cause
the tires to flex severely and to
rapidly become hot. A sharp
increase in temperature could
cause tread separation, and failure
of the tire(s). Possible resulting loss
of vehicle control could lead to an
accident.
▼ Measuring and adjusting air
pressure to achieve proper
inflation
Check and, if necessary, adjust the
pressure of each tire (including the
spare) at least once a month and
before any long journey. Check the
tire pressures when the tires are
cold. Use a pressure gauge to adjust the tire pressures to the

specific values. Driving even a short
distance warms up the tires and
increases the tire pressures. Also,
the tire pressures are affected by
the outside temperature. It is best to
check tire pressure outdoors before
driving the vehicle. When a tire
becomes warm, t he air inside it
expands, causing the tire pressure
to increase. Be careful not to
mistakenly release air from a warm
tire to reduce its pressure.
■ Glossary of Tire TerminologyAccessory weight
The combined weight (in excess of
those standard items which may be
replaced) of automatic transmis-
sion, power steering, power brakes,
power windows, power seats, radio,
and heater, to the extent that these
items are available as factory-
installed equipment (whether
installed or not).
 Bead
The part of the tire that is made of
steel wires, wrapped or reinforced by ply cords and that is shaped to fit

the rim.
 Bead separation
A breakdown of the bond between
components in the bead.
 Bias ply tire
A pneumatic tire in which the ply
cords that extend to the beads are
laid at alternate an gles substantially
less than 90 degrees to the
centerline of the tread.
 Carcass
The tire structure, except tread and
sidewall rubber which, when
inflated, bears the load.
 Chunking
The breaking away of pieces of the
tread or sidewall.
 Cold tire pressure
The pressure in a tire that has been
driven less than 1 mile or has been
standing for three hours or more.
 Cord
The strands forming the plies in the
tire.
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Index
414GAWR (Gross Axle Weight Rating) .....................................P299
G-force .................................................................................P154
G-force (peak hold function).................................................P154
Glove box .............................................................................P214
GVWR (Gross Vehicle Weight Rating).................................P299HHazard warning flasher ............................................. P127, P302
Head restraint adjustment ......................................................P34
Headlight Aim adjustment ................................................................P374
Beam leveler....................................................................P182
Bulb replacement.............................................................P373
Bulb wattage ....................................................................P388
Control switch ..................................................................P174
Flasher.............................................................................P176
Indicator light ...................................................................P150
Welcome lighting function................................................P175
High Beam Assist Function ...........................................................................P177
Indicator light ...................................................................P150
High beam indicator light......................................................P150
High/low beam change (dimmer) .........................................P176
Hill start assist ......................................................................P257 Indicator light ...................................................................P150
To activate/deactivate............... .......................................P258
HomeLink
®...........................................................................P186 Hook
Towing and tie-down....................................................... P320
Horn..................................................................................... P195
Hose and connections ... ................................................ ...... P348
IIcy road surface warning light...... ........................................ P151
Illumination brightness control ............................................. P130
Immobilizer .......................................................................... P108
Indicator light (security indicato r light) ............................ P148
Indicator light BSD/RCTA OFF ............................................................. P150
BSD/RCTA warning ........................................................ P150
Cruise control.................................................................. P149
Cruise control set ............................................................ P149
Door open ....................................................................... P141
Drive mode ..................................................................... P148
Front passenger’s frontal airbag ON and OFF ....... P72, P135
Headlight......................................................................... P150
High beam ...................................................................... P150
High Beam Assist ........................................................... P150
Hill start assist........ ......................................................... P150
Malfunction ..................................................................... P136
RAB OFF ........................................................................ P151
REV ................................................................................ P130
Security ........................................................................... P148
Select lever/Gear position ....... ........................................ P149
Steering Responsive Headlight OFF .............................. P150
TRAC OFF ...................................................................... P142
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Index
416NNavigation system-linked display ................................... ......P156
New vehicle break-in driving ...... ..........................................P290OOdometer .............................................................................P128
Oil filter .................................................................................P347
Oil level
Differential gear ...............................................................P353
Engine .............................................................................P346
Manual transmission........................................................P353
Oil pressure warning light.....................................................P137
One-touch lane change ................. .......................................P182
Outside Mirrors .............................................................................P194
Mirror defogger ................................................................P185
Overheating engine ..............................................................P319PParking Brake ...............................................................................P255
Brake stroke ....................................................................P357
Tips ..................................................................................P255
Periodic inspections .............................................................P292
Petrol fuel .............................................................................P223
PIN code Access ..................................................................P100
Power
Door locking switch..........................................................P113 Outlets ............................................................................ P215
Outside mirrors ............................................................... P194
Steering .......................................................................... P242
Steering warning light ..................................................... P141
Window switches ............................................................ P117
Windows ......................................................................... P116
Power and torque curve ...................................................... P155
Precautions against vehicle modification ...................... P46, P89
Preparing to drive ................................................................ P228
Push-button Ignition switch ................................................................. P125
Starting and stopping engine .......................................... P229
RRear Cross Traffic Alert (RCTA).......................................... P269
Rear seat ............................................................................... P37Folding down .................................................................... P37
Rear seatbelt warning light .................................................. P133
Rear view camera .................... ........................................... P263
Rear window Defogger ......................................................................... P185
Recommended Brake fluid ....................................................................... P383
Clutch fluid ............................................................ P355, P383
Differential gear oil ............... ........................................... P383
Engine oil ........................................................................ P381
Manual transmission oil ............. ..................................... P383
Spark plugs ..................................................................... P385
Refueling ............................................................................. P224
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Index
418Specifications .......................................................................P380
Speedometer........................................................................P127
SRS airbag (Supplemental Restraint System airbag) ..... P5, P60Monitors .............................................................................P87
Servicing ............................................................................P88
Warning light................................................... P70, P87, P135
Starting & stopping engine ...................................................P229
State emission testing (U.S. only) ........................................P227
Steering lock ........................................................................P232
Steering Responsive Headlight ..... .......................................P180
OFF indicator ...................................................................P150
OFF indicator light ...........................................................P150
ON/OFF setting .................................................... P150, P180
Warning light....................................................................P150
Steering wheel
Lock .................................................................................P232
Power ..............................................................................P242
Tilt/telescopic ...................................................................P195
Stopwatch ............................................................................P155
Storage compartment...........................................................P213
Summer tires ........................................................................P358
Sun visors ............................................................................P213
Supplemental Restraint System (S RS) ..................................P60
Supplemental Restraint System ai rbag (SRS) .......................P60
Curtain airbag ....................................................................P80
Side airbag ............................... .........................................P80
Synthetic leather upholstery .......... .......................................P336
TTachometer ......................................................................... P127
Temperature gauge ............................................................. P129
Temperature warning light
AT OIL TEMP ................................................................. P138
Tether (child restrain t system) ....................................... P55, P59
Tie-down hooks ................................................................... P320
Tilt/telescopic steering wheel ...... ........................................ P195
Tire ............................................................................ P358, P385 All season tires ............................................................... P358
Chains............................................................................. P297
Information ...................................................................... P394
Inspection ....................................................................... P360
Pressures and wear ........................................................ P361
Replacement................................................................... P365
Rotation .......................................................................... P364
Size and pressure ........ .......................................... ......... P385
Types .............................................................................. P358
Tire pressure monitoring system (TPMS)........P251, P315, P358
Screen ............................................................................ P254
Warning light ................................................................... P138
Tires and wheels ................................................................. P358
Tools.................................................................................... P302
Top tether anchorages .................................................. P55, P59
Towing ................................................................................. P320
All wheels on the ground ................................................ P324
Flat-bed truck .................................................................. P324
Hooks.............................................................................. P320
Tie-down hooks .............................................................. P320
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Index
420
Power steering.................................................................P141
Seatbelt ...........................................................................P131
SRS airbag system ..........................................................P135
Steering Responsive Headlight .......................................P150
Vehicle Stability Control (VSC) ........................................P142
Warning message display ....................................................P159
Warranties ................................................................................P2
Washing ...............................................................................P332
Waxing and polishing ...........................................................P333
Wear indicators ....................................................................P363
Welcome lighting function ....................................................P175
Wheel Alloy .................................................................................P366
Balance............................................................................P363
Nut tightening torque ............................................ P303, P385
Replacement ...................................................................P365
Windows...............................................................................P116
Windshield Washer fluid.....................................................................P366
Wiper and washer switches .............................................P183
Wiper blades....................................................................P368
Winter Driving .............................................................................P293
Tires...................................................................... P296, P358
Wiper and washer ................................................................P183
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