2022 SUBARU BRZ engine overheat

Automatic Transmission
2367-6. Automatic TransmissionThe automatic transmission is electroni-
cally controlled and provides 6 forward
speeds and 1 reverse speed. It also has a
manual mode.
NOTE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 automaticallyshift 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.
WARNING
Do not shift from the “P” or “N”
position into the “D” or “R” position
while depressing the accelerator
pedal. This may cause the vehicle to
lurch forward or backward.
CAUTION
 Observe the following precau-
tions. Failure to observe these
precautions could cause damage
to the transmission.
- Shift into the “P” or “R” posi-
tion only after the vehicle has
completely stopped.- Do not shift from the “D” posi- tion into the “R” position or
vice versa until the vehicle
has completely stopped.
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.
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Power Steering
243
Starting and Operating7
7-9. Power SteeringPower steering warning lightThe vehicle is equipped with an electric
power steering system. When the ignition
switch is turned to the “ON” position, the
power steering warning light on the combi-
nation meter illuminates to inform the
driver that the warning system is func-
tioning properly. Then, if the engine
started, the warning light turns off to
inform the driver that the steering power
assist is operational.
NOTEIf the steering wheel is operated in the
following ways, the power steering
control system may temporarily limit
the power assist in order to prevent
the system components, such as the
control computer and drive motor,
from overheating.
 The steering wheel is operated
frequently and turned sharply while the
vehicle is maneuvered at extremely low
speeds, such as while frequently
turning the steering wheel during
parallel parking.
 The steering wheel remains in the
fully turned position for a long period
of time.
At this time, there will be more resis-
tance when steering. However this is
not a malfunction. Normal steering
force will be restored after the steering
wheel is not operated for a while and the power steering control system has
an opportunity to cool down. However,
if the power steering is operated in a
non-standard way which causes
power assist limitation to occur too
frequently, this may result in a mal-
function of the power steering control
system.
702778
CAUTION
While the power steering warning
light is illuminated, there may be
more resistance when the steering
wheel is operated. Drive carefully to
the nearest SUBARU dealer and
have the vehicle inspected immedi-
ately.
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Braking
2447-10. Braking■
Braking Tips
▼
When the brakes get wet
When driving in rain or after washing the
vehicle, the brakes may get wet. As a
result, brake stopping distance will be
longer. To dry the brakes, drive the
vehicle at a safe speed while lightly
depressing the brake pedal to heat up the
brakes.
▼Use of engine braking
Remember to make use of engine braking
in addition to foot braking. When
descending a grade, if only the foot brake
is used, the brakes may start working
improperly because of brake fluid over-
heating, caused by overheated brake
pads. To help prevent this, shift into a
lower gear to get stronger engine braking. ▼
Braking when a tire is punctured
Do not depress the brake pedal suddenly
when a tire is punctured. This could cause
a loss of control of the vehicle. Keep
driving straight ahead while gradually
reducing speed. Then slowly pull off the
road to a safe place.
■
Brake System
▼
Two separate circuits
Your vehicle has a dual circuit brake
system. Each circuit works diagonally
across the vehicle. If one circuit of the
brake system should fa il, the other half of
the system still works. If one circuit fails,
the brake pedal will go down much closer
to the floor than usual and you will need to
press it down much harder. And a much
longer distance will be needed to stop the
vehicle.
▼Brake booster
The brake booster uses vacuum pump
system to assist braki ng force. Do not turn
off the engine while driving because that
will turn off the brake booster, resulting in
poor braking power.
The brakes will continue to work even
when the brake booster completely stops
functioning. If this happens, however, you
will have to depress the pedal much harder than normal and the braking
distance will increase.
▼
Supplemental booster function
when vacuum pressure fails
While the ignition switch is turned “ON”
and the engine is running, the supple-
mental booster function operates when
the brake booster performance is
decreased due to insufficient vacuum
boost.
When the brake pedal is depressed while
the supplemental booster function is oper-
ating, an operation sound and brake pedal
vibration may be generated. This is not a
malfunction.
▼Brake assist system
WARNING
Never rest your foot on the brake
pedal while driving. This can cause
dangerous overheating of the
brakes and needless wear on the
brake pads.
WARNING
Do not be overco nfident about the
brake assist. It is not a system that
brings more braking ability to the
vehicle beyond its braking capabil-
ity. Always use the utmost care
when driving regarding vehicle
speed and safe distance.
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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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Flat Tires
308Do not use tire chains on a sealed
tire.Do not tow a trailer.If used for a purpose other than
sealing a flat tire, the flat tire
repair kit may cause a severe
accident or injury due to the fact
that compressed air can act as an
explosive or propellant.Safely park your vehicle on the
roadside so that you do not
obstruct the flow of traffic and so
that you are able to seal the flat
tire without being in danger.Apply the parking brake, even if
the vehicle is parked on a level
road, to make sure that the
vehicle will not move.Stop the engine before sealing
the flat tire.Turn on the hazard warning
flasher while sealing the flat tire.Do not attempt to remove foreign
objects like nails or screws that
have penetrated the tire. Leave
them as they are. Never leave the flat tire repair kit
unattended while in use.Only one tire can be repaired with
one bottle of sealant.
The tires can be repaired when
the ambient temperature is −22 °F
( − 30 °C) or higher.
CAUTION
 Remember that the flat tire repair
kit only provides temporary
mobility. Regulations concerning
tire repair after usage of flat tire
repair kit may di ffer from country
to country. We recommend that
you consult your SUBARU dealer
or tire dealer for advice. Store the flat tire repair kit safely
and secure it under the floor of
the trunk. Storing it anywhere in
the passenger compartment is
not advisable because it could
strike an occupant in the event of
a sudden stop or collision and
cause injury. Use the flat tire repair kit with
original vehicle tires only.Do not keep the air compressor
operating for more than 10
minutes, otherwise there is a risk
of overheating.The temperature of the air
compressor may become high.
Be careful not to burn yourself.
When raining, take measures to
prevent the air compressor from
being exposed directly to the
rain. Exposing to rain may cause
a malfunction.Do not use air compressors other
than the one in the repair kit.
Using an air compressor other
than the one in the repair kit may
damage the tires.Do not disassemble or modify the
air compressor to enable the use
of a power supply or a battery
other than DC 12 V.If a temporary puncture repair is
performed with the repair kit, the
Tire Pressure Monitoring System
(TPMS) (if equipped) may not
operate normally.
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Engine Overheating
319
In Case of Emergency9
9-5. Engine Overheating■
If Steam Is Coming from the
Engine Compartment
Turn off the engine and get everyone
away from the vehicle until it cools down.
■
If No Steam Is Coming from
the Engine Compartment
1. Keep the engine running at idling
speed.
2. Open the hood to ventilate the engine
compartment. Refer to "Engine Hood"
P343.
Confirm that the cooling fan is turning. If
the fan is not turning, immediately turn off
the engine and contact your authorized
dealer for repair.
3. After the engine coolant temperature
has dropped, turn off the engine.
If the temperature gauge stays in the over-
heated zone, turn off the engine.
4. After the engine has fully cooled down,
check the coolant level in the reserve
tank.
If the coolant level is below the “LOW”
mark, add coolant up to the “FULL” mark.NOTEFor details about how to check the
coolant level or how to add coolant,
refer to "Eng ine Coolant" 
P349.
5. If there is no coolant in the reserve
tank, add coolant to the reserve tank.
Then remove the radiator cap and fill the
radiator with coolant.
If you remove the radiator cap from a hot
radiator, first wrap a thick cloth around the radiator cap, then turn the cap
counterclockwise slowly without pressing
down until it stops. Release the pressure
from the radiator. After the pressure has
been fully released, remove the cap by
pressing down and turning it.
WARNING
Never remove the radiator cap until
the engine has been shut off and
has fully cooled down. When the
engine is hot, the coolant is under
pressure. Removing the cap while
the engine is still hot could release
a spray of boiling hot coolant,
which could burn you very seri-
ously.
CAUTION
If the engine overheats, the engine
speed or the vehicle speed may be
reduced. Stop the vehicle in a safe
place immediately.
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Access Key Fob – If Access Key Fob Does Not Operate Properly
325
In Case of Emergency9
– CONTINUED –
1. Release the parking brake and put the
transmission in neutral.
2. The ignition switch should be in the
“ON” position while the vehicle is being
towed.
3. Take up slack in the towline slowly to
prevent damage to the vehicle.
9-7. Access Key Fob – If
Access Key Fob Does Not Operate ProperlyThe following functions may be inoperable
because of strong radio signals in the
surrounding area or a low battery condi-
tion of the access key fob.
Locking/unlocking doors including
trunk
 Switching power status
 Starting engine
In such cases, perform the following
procedure. When the battery of the
access key fob is discharged, replace it
with a new one. Refer to "Replacing
Battery of Access Key Fob" P376.
CAUTION
 If transmission failure occurs,
transport your vehicle on a flat-
bed truck.Sometime damaged vehicles
cannot be towed because of their
damaged condition. In that case,
use a flat-bed truck for transpor-
tation.The traveling speed must be
limited to less than 20 mph (32
km/h) and the traveling distance
to less than 19 miles (30 km). For
greater speeds and distances,
transport your vehicle on a flat-
bed truck.Use a flat-bed truck if there are
long distance downgrades or
steep slopes. However, do not
apply the brake pedal for a long
time because the engine braking
will not work while towing. Doing
so could overheat the brake.Drive carefully and do not make
an impact on the towing rope by
suddenly starting.
Use a specific towing rope for
towing. If wire ropes and metal
chains are needed to be used for
towing, wrap the contact portion
of the bumper with cloth to
protect it from damage.
CAUTION
Keep metallic objects, magnetic
sources and signal transmitters
away from the area between the
access key fob and the push-button
ignition switch. They may interfere
with the communication between
the access key fob and the push-
button ignition switch.
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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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