2017 SUBARU BRZ key battery

369 4-3. Do-it-yourself maintenance
4
Maintenance and care
Remove the depleted battery.
To prevent damage to the key,
wrap the tip of the screwdriver
with protective tape.
Install a new battery with the
“+” terminal facing up, as
shown in the illustration.
Align the protruding part with
the slot and install the cover.
STEP3
STEP4
STEP5

370 4-3. Do-it-yourself maintenance
■Use a CR2016 (vehicles without a keyless access with push button
start system) or CR2032 (vehicles with a keyless access with push but-
ton start system) lithium battery
●Batteries can be purchased at your SUBARU dealer, local electrical
appliance shops or camera stores.
●Replace only with the same or equivalent type recommended by the
manufacturer.
●Dispose of used batteries according to local laws.
■If the key battery is depleted
The following symptoms may occur:
●The keyless access with push button start system (if equipped) and
remote keyless entry system will not function properly.
●The operational range will be reduced.
■When putting the module back (vehicles without a keyless access with
push button start system)
WARNING
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
Insert the module from directly above.
Inserting it on an angle may prevent the
key buttons from operating properly.

When trouble arises5
391
5-1. Essential information
Hazard warning
flashers .......................... 392
If your vehicle needs to
be towed ........................ 393
If you think something is
wrong ............................. 400
Fuel pump shut off
system ........................... 4015-2. Steps to take in an
emergency
If a warning light turns
on or a warning buzzer
sounds... ....................... 402
If a warning message is
displayed ........................ 414
If you have a flat tire......... 431
If the engine will
not start .......................... 444
If the select lever cannot
be shifted from P ............ 447
If you lose your keys ........ 448
If the access key does not
operate properly ............. 449
If the battery is
discharged ..................... 453
If your vehicle
overheats ....................... 458
If the vehicle becomes
stuck .............................. 461

444
5-2. Steps to take in an emergency
If the engine will not star t
If the engine will not start even though correct starting procedures
are being followed (oP. 169, 178), consider each of the following
points.
■The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. (oP. 169, 178)
●There may be a malfunction in the engine immobilizer system.
(oP. 80)
■The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
●The battery may be discharged. (oP. 453)
●The battery terminal connections may be loose or corroded.
■The starter motor does not turn over. (vehicles with a key-
less access with push button start system)
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
(oP. 445)

5
When trouble arises
445 5-2. Steps to take in an emergency
Emergency start function (vehicles with a keyless access with
push button start system)
When the engine does not start, the following steps can be used as
an interim measure to start the engine if the push-button ignition
switch is functioning normally:
Vehicles with an automatic transmission
Set the parking brake.
Put the select lever in P.
Set the push-button ignition switch to “ACC” mode.
Press and hold the push-button ignition switch about 15 sec-
onds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle checked by your SUBARU
dealer.
■The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (oP. 453)
●There may be a malfunction in the steering lock system. (vehi-
cles with a keyless access with push button start system)
Contact your SUBARU dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
STEP 4

5
When trouble arises
449
5-2. Steps to take in an emergency
If the access key does not operate properly (vehicles with a keyless access with push button star t system)
Unlocking and locking the doors, unlocking the trunk lid
Use the mechanical key built in to the access keys to operate the
doors and trunk lid. (oP. 2 3 )
The mechanical key is directional. If the key cannot be inserted,
change the direction that the grooved side is facing and insert it
again.
Vehicles with an alarm: An alarm will sound if the alarm is set when the
trunk lid or doors are unlocked. (oP. 85)
Doors
Locks driver’s door
Unlocks driver’s door
If communication between the access key and vehicle is interrupted
(oP. 31) or the access key cannot be used because the battery is
depleted, the keyless access with push button start system and
remote keyless entry system cannot be used. In such cases, the
doors and trunk lid can be opened or the engine can be started by
following the procedure below.

452 5-2. Steps to take in an emergency
■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.
(oP. 367)
■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. (oP. 85)
■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.

454 5-2. Steps to take in an emergency
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