2023 SUBARU BRZ transmission fluid

Automatic Transmission
236NOTEWhen the engine coolant tempera-
ture is still low, the transmission will
shift at higher engine speeds than
when the coolant temperature is suffi-
ciently high in order to shorten the
warm-up time and improve driveability.
The gearshift timing will automatically shift to the normal
timing after the
engine has warmed up.
 Immediately after transmission fluid
is replaced, you may feel that the trans-
mission operation is somewhat
unusual. This results from invalidation
of data which the on-board computer
has collected and stored in memory to
allow the transmission to shift at the
most appropriate times for the current
condition of your vehicle. Optimized
shifting will be restored as the vehicle
continues to be driven for a while.
 Place the shift boot to the original
position after it is lifted. If the shift lever
is operated with the shift boot in the
rolled up position, the shift boot may
have tension and it may disturb the
shift lever operation.
 When the vehicle is idling at high
rpm in order to warm up, and the
vehicle is on a slippery road, the trans-
mission may automatically shift to 2nd
gear for stopping and starting off.
■ Select Lever
: Shift with the brake pedal depressed
and push-button ignition switch in the “ON”
position. When shifting between “P” and “D”,
depress the brake pedal and securely stop
the vehicle before shifting.
The select lever has four positions, “P”,
“R”, “N”, “D” and also has a manual gate
for using the manual mode.NOTETo protect the engine while the select
lever is in the “P” or “N” position, the
engine is controlled so that the engine
speed may not become too high even
if the accelerator pedal is depressed
hard.
 Do not race the engine for more
than 5 seconds in any position
except the “N” or “P” position
when the brake is applied or when
chocks are used in the wheels.
This may cause the transmission
fluid to overheat. Never move the vehicle rearward
by inertia with the select lever set
in a forward driving position or
move the vehicle forward by
inertia with the select lever set in
the “R” position. Doing so may
result in an unexpected accident
or malfunction. When parking the vehicle, first
securely apply the parking brake
and then place the select lever in
the “P” position. Do not park for a
long time with the select lever in
any other position as doing so
could result in a dead battery.
702768
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Automatic Transmission
240the shift paddle twice in rapid succes-
sion.
If the temperature of the transmis-
sion fluid becomes too high, the “AT
OIL TEMP” warning light will illumi-
nate. Immediately stop the vehicle in a
safe place and let the engine idle until
the warning light turns off.▼ Temporary manual mode driving
While driving with the select lever in “D”, if
a shift paddle is operated, the gear can
temporarily be selected. In this case, “M”
and the selected gear number will be
displayed on the combination meter. (If
the engine speed approaches close to the
red zone, an upshift will automatically be
performed.)1) Upshift
2) Downshift
The selected gear, from “M1” to “M6”, will
be displayed on the combination meter.NOTE In the following situations, tempo-
rary manual mode will be cancelled. - When the vehicle speed is low
- When the accelerator pedal is
depressed continuously for a
certain amount of time or more
- When the accelerator pedal is
depressed heavily
- When the select lever is shifted
to a position other than “D”
- When the “+” shift paddle switch
is held down for a period of time
When a downshift is attempted at a
vehicle speed where a downshift is not
possible (when the engine speed
would enter the red zone if a downshift
is performed), the downshift warning
buzzer will sound to inform the driver
that a downshift cannot be performed.■ Driving TipsNOTEIf the accelerator and brake pedals are
depressed at the same time, driving
torque may be restrained. This is not a
malfunction.
 On a road surface where there is a risk
of wheelspin (for example, a snow- or gravel covered road), you can start off

from a standstill safely and easily by first
selecting Snow mode.
 Always apply the foot or parking brake
when the vehicle is stopped in the “D” or
“R” position.
 Make sure to apply the parking brake
when parking your vehicle. Do not hold
the vehicle with only the transmission.
 Do not keep the vehicle in a stationary
position on an uphill grade by using the
“D” position. Use the brake instead.
 The engine may, on rare occasions,
knock when the vehicle rapidly acceler-
ates or rapidly pulls away from a standstill.
This phenomenon does not indicate a
malfunction.
1
2702766
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Maintenance and Service11
Maintenance and Service
11-1. Maintenance Schedule .....................................339
11-2. Maintenance Precautions.................................339
Before Checking or Servicing in the Engine
Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment While the Engine Is Running ............341
11-3. Maintenance Tips ..............................................341
Removing and Reinstalling Clips................................341
11-4. Engine Hood ......................................................343
11-5. Engine Compartment Overview.......................345
11-6. Engine Oil ..........................................................346
Engine Oil Consumption..............................................346
Checking the Oil Level .................................................346
Changing the Oil and Oil Filter ....................................347
Recommended Grade and Viscosity ..........................347
Synthetic Oil..................................................................348
11-7. Cooling System .................................................348
Cooling Fan, Hose and Connections ..........................348
Engine Coolant .............................................................349
11-8. Air Cleaner Element ..........................................350
Replacing the Air Cleaner Element .............................350
11-9. Spark Plugs .......................................................352
Recommended Spark Plugs ........................................352
11-10. Drive Belt .........................................................352
11-11. Automatic Transmission Fluid ......................352
Recommended Grade and Viscosity ..........................352
11-12. Differential Gear Oil ........................................353
Recommended Grade and Viscosity ..........................353
11-13. Manual Transmission Oil ...............................353
Recommended Grade and Viscosity ..........................353
11-14. Brake Fluid ......................................................353
Checking the Fluid Level ............................................ 353
Recommended Brake Fluid ........................................ 354
11-15. Clutch Fluid (MT models) ...............................354
Checking the Fluid Level ............................................ 354
Recommended Clutch Fluid ....................................... 355
11-16. Brake Booster .................................................355
11-17. Brake Pedal .....................................................356
11-18. Clutch Pedal (MT models) ..............................356
11-19. Replacement of Brake Pad and Lining..........356
Breaking-in of New Brake Pads and Linings ............ 357
11-20. Parking Brake Stroke ......................................357
11-21. Tires and Wheels ............................................358
Types of Tires .............................................................. 358
Tire Pressure Monito ring System (TPMS) 
(If Equipped)............................................................... 358
Tire Inspection ............................................................. 360
Tire Pressures and Wear............................................. 361
Wheel Balance ............................................................. 363
Wear Indicators ............................................................ 363
Rotational Direction of Tires....................................... 364
Tire Rotation................................................................. 364
Tire Replacement ...... ............................. ...................... 365
Wheel Replacement ..................................................... 365
11-22. Alloy Wheels ....................................................366
11-23. Windshield Washer Fluid ...............................366
11-24. Replacement of Wiper Blades........................367
Windshield Wiper Blade Assembly ............................ 368
Windshield Wiper Blade Rubber ................................ 369
11-25. Battery ..............................................................370
11-26. Fuses ................................................................371
11-27. Installation of Acce ssories ............................373
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Differential Gear Oil
353
Maintenance and Service11
– CONTINUED –
11-12. Differential Gear OilIt is not necessary to check the gear oil
level. Check that there are no cracks,
damage or leakage. However, the oil
inspection should be performed according
to the maintenance schedule in the
“Warranty and Maintenance Booklet”.
Consult your SUBARU dealer for details.■ Recommended Grade and
ViscosityEach oil manufacturer has its own base
oils and additives. Never use different
brands together. For details, refer to
"Manual Transmission and Differential
Gear Oil" P383.
11-13. Manual Transmission OilIt is not necessary to check the transmis-
sion oil level. Check that there are no
cracks, damage or leakage. However,
have the oil inspected by your SUBARU
dealer according to the maintenance
schedule in the “Warranty and Mainte-
nance Booklet”. Consult your SUBARU
dealer for details.■ Recommended Grade and
ViscosityEach oil manufacturer has its own base
oils and additives. Never use different
brands together. For details, refer to
"Manual Transmission and Differential
Gear Oil" P383.
11-14. Brake Fluid■ Checking the Fluid Level
CAUTION
Using a differential gear oil other
than the specified oil may cause a
decline in vehicle performance.
WARNING
 Never let brake fluid contact your
eyes because brake fluid can be
harmful to your eyes. If brake
fluid gets in your eyes, immedi-
ately flush them thoroughly with
clean water. Fo r safety, when
performing this work, wearing
eye protection is advisable. Brake fluid absorbs moisture
from the air. Any absorbed mois-
ture can cause a dangerous loss
of braking performance. If the vehicle requires frequent
refilling, there may be a leak. If
you suspect a problem, have the
vehicle checked at your SUBARU
dealer.
CAUTION
 When adding brake fluid, be
careful not to allow any dirt into
the reservoir. Never splash the brake fluid over
painted surfaces or rubber parts.
Alcohol contained in the brake
fluid may damage them.
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Specifications12
Specifications
12-1. Specifications....................................................380
Dimensions ...................................................................380
Engine............................................................................380
Fuel ................................................................................381
Engine Oil ......................................................................381
Manual Transmission and Differential Gear Oil.........383
Fluids .............................................................................383
Engine Coolant .............................................................384
Electrical System ..........................................................385
Tires ...............................................................................385
Brake Pedal .............. .......................................... ...........385
Brake Disc ................ .......................................... ...........386
Brake Pad ........... ................................................... ........386
12-2. Bulb Chart ..........................................................387
Safety Precautions ...................................................... 387
Bulb Chart .................................................................... 388
12-3. Vehicle Identification ........................................390
12-4. Function Settings ..............................................391
Function Settings and Adjustments on the Center
Information Display ................................................... 391
Individual Settings an d Adjustments Excluding 
Center Information Display and Combination 
Meter Display (Color TFT) ......................................... 391
Function Settings and Adjustments Performed 
by a Dealer ................................................................. 391
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Specifications
383
Specifications12
– CONTINUED –
■Manual Transmission and Differential Gear Oil*1: The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. After refilling the gearbox wi th oil, the oil level should be checked.
*2: For more details about maintenance and service, refer to the indicated section.
*3: The vehicle is filled at the factory.
*4: This type of manual transmission oil can be used. However, using this type of oil will increase fuel consumption.
If oil other than “Manual Transmission Gear Oil LV 75W” is used, the following may be experienced:
 The overall performance and function of the transmission may be adversely affected.
 Rattling noises may occur during id ling and fuel consumption may increase.
Never use different brands together.
*5: Using a differential gear oil other than “D ifferential Gear Oil LX” may cause noise, vibrations and increased fuel consumpti on. Never use different
brands together.■ Fluids
Oil Manual transmission oil Differential gear oil
Oil grade 
Manual Transmission Gear Oil LV 75W*
3
API GL-4 SAE 75W
*4
Differential Gear Oil LX*
3
Other gear oil that meets API GL-5 SAE 75W-85 or GL-5 SAE 75W-
90 specifications*
5
Oil capacity*
1
2.3 US qt (2.2 liters, 1.9 Imp qt) 1.22 US qt (1.15 liters, 1.01 Imp qt)
Remarks*
2
"Manual Transmission Oil" P353 "Differential Gear Oil" P353
Fluid Fluid type
*1
Fluid capacity
*2
Remarks
*3
Automatic Transmission Fluid
(AT models) ATF WS
7.9 US qt (7.5 liters, 6.6 Imp qt)"Automatic Transmission
Fluid" 
P352
Brake fluid FMVSS No. 116, DOT 3 or
DOT 4 brake fluid
―
"Brake Fluid" P353
Clutch fluid (MT models) FMVSS No. 116, DOT 3 or
DOT 4 brake fluid
―"Clutch Fluid (MT models)"

P354
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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 ........................... P72
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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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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