2020 SUBARU BRZ Owners Manual

5
When trouble arises
473
5-2. Steps to take in an emergency
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Trun k li d
Turn the mechanical key clock-
wise to open.
Starting the engine
Vehicles with an automatic transmission Ensure that the select lever is in P and firmly depress the
brake pedal.
Touch the area behind the lock
button and unlock button on the
access key to the push-button
ignition switch.
When the access key is detected,
a buzzer sounds and the push-
button ignition switch will turn to
“ON” mode.
When the keyless access with push button start system is deacti-
vated in customization setting, the push-button ignition switch will
turn to “ACC” mode. Modes can be changed by pressing the push-
button ignition switch with the brake pedal released. (The mode
changes each time the switch is pressed.)
Firmly depress the brake pedal and check that the keyless
access with push button start system indicator light (green)
turns on.
Press the push-button ignition switch.
In the event that the push-button ignition switch still cannot be oper-
ated, contact your SUBARU dealer.
STEP 1
STEP 2
STEP 3
STEP 4

474 5-2. Steps to take in an emergency
BRZ_UVehicles with a manual transmission
Ensure that the shift lever is in neutral and depress the clutch
pedal.
Touch the area behind the lock
button and unlock button on the
access key to the push-button
ignition switch.
When the access key is detected,
a buzzer sounds and the push-
button ignition switch will turn to
“ON” mode.
When the keyless access with push button start system is deacti-
vated in customization setting, the push-button ignition switch will
turn to “ACC” mode. Modes can be changed by pressing the push-
button ignition switch with the clutch pedal released. (The mode
changes each time the switch is pressed.)
Firmly depress the clutch pedal and check that the keyless
access with push button start system indicator light (green)
turns on.
Press the push-button ignition switch.
In the event that the push-button ignition switch still cannot be oper-
ated, contact your SUBARU dealer.
STEP 1
STEP 2
STEP 3
STEP 4

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

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5-2. Steps to take in an emergency
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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.
STEP 1

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

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5-2. Steps to take in an emergency
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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.

480 5-2. Steps to take in an emergency
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CAUTION
■When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fans
or any of the belts when connecting or disconnecting them.
■ When closing the doors
While pushing the door glass towards the inside of the vehicle, slowly close
the door.
Because the side window open/close function linked to door operation will
not operate, the window may interfere with the vehicle body, possibly
scratching both the vehicle body and window, or even shattering the window.