2020 SUBARU BRZ key battery

5
When trouble arises
475
5-2. Steps to take in an emergency
BRZ_U
■
Stopping the engine
Vehicles with an automatic transmission: Shift the select lever to P and press
the push-button ignition switch as you normally do when stopping the
engine.
Vehicles with a manual transmission: Shift the shift lever to neutral and press
the push-button ignition switch as you normally do when stopping the
engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
access key battery be replaced immediately when the battery depletes.
(→ P. 388)
■ Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set,
the alarm may be triggered. ( →P. 87)
■ If the doors cannot be locked or unlocked by the keyless access with
push button start system
Lock and unlock the doors by the mechanical key or remote keyless entry
system.

5
When trouble arises
477
5-2. Steps to take in an emergency
BRZ_U
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Vehicles with a keyless access with push button start sys-
tem only: Open and close any of the doors of your vehicle
with the push-button ignition switch off.
Vehicles without a keyless access with push button start
system: Maintain the engine speed of the second vehicle
and turn the engine switch to the “ON” position, then start
the vehicle's engine.
Vehicles with a keyless access with push button start sys-
tem: Maintain the engine speed of the second vehicle and
turn the push-button ignition switch to “ON” mode, then
start the vehicle's engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your SUBARU
dealer as soon as possible.STEP 2
STEP 3
STEP 4
STEP 5

478 5-2. Steps to take in an emergency
BRZ_U
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■ Avoiding a discharged battery
●Turn off the headlights and the air conditioning system while the engine is
off.
● Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic, etc.
■ Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
■ Precautions when the battery is discharged (vehicles with a keyless
access with push button start system)
●In some cases, it may not be possible to unlock the doors using the key-
less access with push button start system when the battery is dis-
charged. Use the remote keyless entry system or the mechanical key to
lock or unlock the doors.
● The engine may not start on the first attempt after the battery has
recharged but will start normally after the second attempt. This is not a
malfunction.
● The push-button ignition switch mode is memorized by the vehicle. When
the battery is reconnected, the system will return to the mode it was in
before the battery was discharged. Before disconnecting the battery, turn
the push-button ignition switch off.
If you are unsure what mode the push-button ignition switch was in
before the battery discharged, be especially careful when reconnecting
the battery.

549
BRZ_U
Alphabetical index
Alphabetical index
A/C .................................... 282, 289
ABS........................................... 257
Access keyIf the access key does not operate properly........... 472
Air conditioning filter.............. 385
Air conditioning system Air conditioning filter ............. 385
Automatic air conditioning system................................ 289
Manual air conditioning system................................ 282
Airbags Airbag operating conditions................... 108, 116
Airbag precautions for your child............................ 125
Airbag warning light .............. 426
Curtain airbag
operating conditions........... 116
Curtain airbag precautions ........................ 125
Front passenger occupant detection system ................ 131
General airbag precautions ........................ 125
Locations of airbags ............... 93
Modification and disposal of airbags ............. 128
Proper driving
posture ......................... 91, 125
Side airbag operating conditions........................... 116
Side airbag precautions ........................ 125
Side and curtain airbags
operating conditions........... 116
Side and curtain airbags precautions ........................ 125
SRS airbag instructions for Canadian owners .......... 526
SRS airbags ........................... 93 Alarm ...........................................87
Anti-lock brake system............257
Audio input ...............................300
Audio system
Audio input ............................300
AUX port................................300
iPod .......................................300
Portable music player............300
USB memory .........................300
USB port................................300
Auto dimmer cancel function ..................................201
Automatic air conditioning system ....................................289
Automatic headlight leveling system ......................237
Automatic light control system .......................233
Automatic transmission Automatic transmission .........185
If the select lever cannot be shifted from P......................470
Manual mode ........................188
Mode select switch ................187
Paddle shift levers .................188
AUX port ...................................300
Back-up lights Replacing light bulbs .............401
Wattage .................................500
Battery Checking ...............................364
If the vehicle has a discharged battery ..............476
Preparing and checking
before winter .......................274
Bottle holders ...........................306
Brake Fluid ......................................362
Parking brake ........................197
Brake assist..............................257
Break-in tips .............................159A
B

550 Alphabetical index
BRZ_U
Brightness controlInstrument panel light control .................................201
Care Alcantara
®............................. 342
Alloy wheels .......................... 333
Exterior.................................. 332
Interior ................................... 338
Seatbelts ............................... 339
Cargo capacity ......................... 269
Chains ....................................... 276
Child restraint system
Booster seats, definition ............................. 141
Booster seats, installation ........................... 146
Convertible seats, definition ............................. 141
Convertible seats, installation ........................... 146
Front passenger occupant detection system .................131
Infant seats,
definition ............................. 141
Infant seats, installation ........................... 146
Installing CRS with LATCH anchors .................. 147
Installing CRS with
seatbelts ............................. 149
Installing CRS with top tether straps .................. 152
Child safety Airbag precautions ................ 125
Battery precautions .......367, 479
Child restraint system............ 141
How your child should wear the seatbelt ..................62
Installing child restraints........ 146
Power window lock switch.......74
Power window precautions ...........................77 Removed key battery
precautions ......................... 391
Seat heater precautions ........ 315
Seatbelt guide ......................... 61
Seatbelt precautions ............... 64
Trunk precautions ................... 49
Cleaning Alcantara
®............................. 342
Alloy wheels .......................... 333
Exterior.................................. 332
Interior ................................... 338
Seatbelts ............................... 339
Clock ......................................... 311
Condenser ................................ 362
Console tray ............................. 307
Coolant Capacity ................................ 494
Checking ............................... 360
Cooling system Engine overheating ............... 481
Cruise control .......................... 243
Cup holders .............................. 307
Curtain airbags .......................... 93
Customizable features ............ 518
Daytime running light system .................................... 235
Defogger Outside rear view mirrors ...... 298
Rear window ......................... 298
Side mirror ............................ 298
Dimensions .............................. 488
Dinghy towing .......................... 280
Display Drive information ................... 221
Multi-information display ........................ 210, 218
Trip information ..................... 211
Warning messages ............... 436
Do-it-yourself maintenance .... 351
C
D

551
Alphabetical index
BRZ_U
Door courtesy lights
Door courtesy lights.............. 302
Wattage ................................ 500
Doors Door lock .................... 25, 38, 43
Door windows ......................... 74
Outside rear view mirrors ....... 71
Side mirrors ............................ 71
Drive information .................... 221
Driver's seatbelt reminder light ........................ 428
Driving
Break-in tips ......................... 159
Correct posture....................... 91
Procedures ........................... 156
Winter drive tips.................... 274
Electric power steering........... 257
Emergency, in case of If the access key does not operate properly........... 472
If the engine will not start...... 467
If the select lever cannot be shifted from P ................ 470
If the vehicle has a discharged battery ............. 476
If the warning buzzer sounds ............................... 424
If the warning light turns on .............................. 424
If the warning message is displayed ........................ 436
If you have a flat tire ............ 453
If you lose your keys............. 471
If you think something is wrong ................................. 422
If your vehicle becomes stuck................................... 484
If your vehicle needs to be towed ............................ 415
If your vehicle overheats ...... 481 Engine
Compartment ........................356
Engine hood ..........................354
Engine switch ................172, 182
How to start the engine .........................172, 182
Identification number .............489
If the engine will not start ......467
Ignition switch................172, 182
Overheating...........................481
Engine coolant Capacity ................................494
Checking ...............................360
Engine coolant temperature gauge ........199, 223
Engine hood .............................354
Engine immobilizer system.......82
Engine oil Capacity ................................492
Checking ...............................357
Preparing and checking before winter .......................274
Engine switch ...................172, 182
Engine switch light ..................302
Event data recorder ...................18
Floor mat...................................316
Fluid Brake .....................................362
Washer ..................................368
Fog lights Switch....................................239
Front fog lights Switch....................................239
Front passenger occupant detection system ...................131
Front passenger's seatbelt reminder light.........................428
Front seats Adjustment ..............................53
Front side marker light Replacing light bulbs .............401
Wattage .................................500
E
F

552 Alphabetical index
BRZ_U
Front turn signal lightsSwitch.................................... 195
Fuel Capacity ................................ 491
Fuel gauge ............................ 199
Fuel pump shut off system ....423
Gas station information .........560
Information ............................ 501
Refueling .................................78
Fuel door.....................................78
Fuel filler lid ................................78
Fuel pump shut off system ..... 423
Fuses......................................... 393
Gauges ...................................... 199
Glove box.................................. 305
Hazard lights Switch.................................... 414
Hazard warning flashers Switch.................................... 414
Head restraints Adjusting ................................58
Headlights Automatic headlight leveling................................ 237
Switch.................................... 233
Welcome lighting function .....236
Heaters
Outside rear view mirrors ...... 298
Seat heaters.......................... 314
Side mirror............................. 298
Hill start assist ......................... 264
Horn...........................................198
I/M test....................................... 350
Identification Engine ................................... 489
Vehicle .................................. 489
Ignition switch ..................172, 182
Ignition switch light
Ignition switch light ................ 302 Illuminated entry system......... 302
Immobilizer system ................... 82
Indicator lights ......................... 203
Inside rear view mirror .............. 69
Interior light
Interior light ........................... 303
Switch ................................... 303
Wattage................................. 500
Jack Vehicle-equipped
jack ..................................... 453
Jack handle .............................. 453
Jam protection function Power windows ....................... 75
Keyless access with push button start system Antenna location ..................... 27
“Keyless access” entry function ................................. 25
Starting the engine................ 172
Keyless entry ............................. 38
Keys
Access key.............................. 22
Engine switch................ 172, 182
If you lose your keys ............. 471
If your access key battery is discharged .......... 472
Key number............................. 22
Keyless entry .......................... 38
Keys ........................................ 22
Mechanical key ....................... 23
Transmitter.............................. 38
Language (multi-information display) ................................... 228
License plate lights Replacing light bulbs ............. 401
Wattage................................. 500
G
H
I
J
K
L

554 Alphabetical index
BRZ_U
Rear side marker lightsSwitch.................................... 233
Rear turn signal lights Switch.................................... 195
Rear view camera..................... 248
Rear view mirror Inside rear view mirror.............69
Outside rear view mirrors ........71
Rear window defogger ............ 298
Replacing Fuses .................................... 393
Key battery ............................ 388
Light bulbs............................. 401
Tires ...................................... 453
Reporting safety defects for U.S. owners ...................... 523
REV indicator ........................... 161
Seat heaters..............................314
Seatbelts Adjusting the seatbelt..............60
Automatic Locking Retractor (ALR).....................62
Child restraint system
installation ........................... 146
Cleaning and maintaining the seatbelts ....................... 339
Emergency Locking Retractor (ELR).....................62
How to wear your seatbelt.......60
How your child should
wear the seatbelt ..................62
Pregnant women, proper seatbelt use ...............64
Reminder light ....................... 428
Seatbelt guide .........................61
Seatbelt pretensioners ............61
Seating capacity....................... 273
Seats Adjustment ..............................53
Adjustment precautions...........54
Child seats/child restraint system installation ..............146 Cleaning................................ 338
Head restraint ......................... 58
Properly sitting in the seat....... 91
Seat heaters.......................... 314
Service reminder indicators .............................. 203
Shift lever Automatic transmission......... 185
If the select lever cannot be shifted from P ................ 470
Manual transmission ............. 192
Shift lock system ..................... 470
Side airbags ............................... 93
Side maker lights
Replacing light bulbs ............. 401
Switch ................................... 233
Wattage................................. 500
Side mirror
Adjusting and folding............... 71
Spare tire Inflation pressure .................. 498
Storage location .................... 453
Spark plug ................................ 494
Specifications .......................... 488
Speedometer ............................ 199
Steering Column lock release ............... 67
Steering wheel Adjustment .............................. 67
Meter control switches .......... 219
Storage feature ........................ 304
Stuck
If your vehicle becomes stuck ................................... 484
Sun visors ................................ 309
S