battery SUBARU BRZ 2015 1.G Service Manual

360
5-1. Essential information
Hazard war ning flashers
■Hazard warning flashers
If the hazard warning flashers are used for a long time while the engine is
not operating, the battery may discharge.
The hazard warning flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.
Press the switch.All the turn signal lights will
flash. To turn them off, press
the switch once again.

382
5-2. Steps to take in an emergency
OnceContinuous
(5 seconds)
(Flashes
in yellow) Keyless access with push
button start system indica-
tor light
An attempt was made to exit
the vehicle with the access
key and lock the doors with-
out first turning the push-but-
ton ignition switch off. Turn the
push-button
ignition switch
off and lock
the doors
again.
Once (Flashes
in yellow
for 15
seconds.) Keyless access with push
button start system indica-
tor light
Indicates that the access key
is not present when attempt-
ing to start the engine. Confirm the
location of the
access key.
Intermit-
tently (7 sec-
onds)
 (Flashes
in yellow) Keyless access with push
button start system indica-
tor light
An attempt was made to
drive when the regular key
was not inside the vehicle. Confirm that
the access
key is inside
the vehicle.
Once (Flashes
in yellow
for 15
seconds.) Keyless access with push
button start system indica-
tor light
Indicates that the access key
battery is low. Replace the
battery. (
→ P. 330)
Once (Flashes
quickly in green for 15 sec-onds.) Keyless access with push
button start system indica-
tor light
Indicates that the steering
lock has not been released. Release the
steering lock. (
→ P. 168)
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection procedure

5
When trouble arises
395
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start even though correct starting procedures
are being followed ( →P. 162, 171), 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. ( →P. 162, 171)
● There may be a malfunction in the engine immobilizer system. (→ P. 78)
■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. ( →P. 404)
● 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. (→ P. 396)

396
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. ( →P. 404)
● 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

400
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. ( →P. 21)
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. ( →P. 82)
Doors
Locks driver’s door
Unlocks driver’s door
If communication between the access key and vehicle is interrupted (→ P. 30) 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 canno t be used. In such cases, the
doors and trunk lid can be opened or the engine can be started by
following the procedure below.

5
When trouble arises
403
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 theengine.
Vehicles with a manual transmission: Shift the shift lever to neutral and press
the push-button ignition switch as you normally do when stopping theengine.
■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. 330)
■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. 82)
■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.

404
5-2. Steps to take in an emergency
If the batter y is discharged
The following procedures may be used to start the engine if the vehi-
cle's battery is discharged.
You can call your SUBARU dealer or a qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehi-
cle with a 12-volt battery, you can jump start your vehicle following
the steps below.Connect the jumper cables according to the following pro-
cedures:
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in
the illustration. 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.
STEP 1
STEP 2
STEP 3

406
5-2. Steps to take in an emergency
■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.

5
When trouble arises
407
5-2. Steps to take in an emergency
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it
is not unintentionally in contact with any part other than the intended termi-nal.
●Do not allow the jumper cables to come into contact with the “+” and “-” ter-
minals.
●Do not allow open flame or use matches, cigarette lighters or smoke near
the battery.
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery.
●When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
●Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
●Do not allow children near the battery.
■To prevent damage to the vehicle
Do not pull- or push-start the vehicle as the three-way catalytic converter
may overheat and become a fire hazard.

423
6-1. Specifications
6
Vehicle specifications
Electrical system
Differential
Battery
Specific gravity reading at 68°F (20 °C): 1.250
 1.290 Fully charged
1.160  1.200 Half charged
1.060  1.100 Discharged
Charging rates
Quick charge
Slow charge 15 A max.
5 A max.
Oil capacity (Refer-
ence)
1.20 qt. (1.15 L, 1.01 Imp. qt.)
Oil type and viscosity