Subaru WRX 2021 Owner's Manual page 277

In addition, the remote engine start system
can activate the heater or air conditioner,
providing you with a comfortable cabin
upon entry.
NOTE
The length of time for which it is
acceptable to allow the engine to
remain idling may be governed by local
laws and regulations. Check the local
rules when using the remote engine
start system.
! Models with "keyless access with
push-button start system"
NOTE
For more details, refer to the Owner's
Manual supplement for the remote
engine start system.
Starting and operating/Starting and stopping the engine
Access key fob
1) Lock button
An access key fob serves as the remote
engine start transmitter. Operate the lock
button to start or stop the engine as
follows.
! Before starting the engine
Before using the remote engine start
system to start the engine, confirm the
following conditions.
. The select lever is in the "P" position.
. All doors are closed.
. The engine hood is closed.
. The push-button ignition switch is in the
"OFF" position.
! Starting the engine
1. Press the lock button briefly. The
hazard warning flashers then flash once.
2. Within 2 seconds, press the lock button
briefly again. The hazard warning flashers
then flash once again.
3. After step 2, immediately press and
hold the lock button. The hazard warning
flashers then flash once.
4. Approximately 3 seconds after step 3,
release the lock button. The engine will
then start successfully.
! Stopping the engine
Press and hold the lock button to stop the
engine with remote engine start system.
! Automatic engine shutdown
The remote engine start system will auto-
matically shut down or will not start the
engine under the following conditions.
. The total run-time has exceeded 20
minutes.
. Any door is opened.
. The select lever is moved to any
position other than "P".
. The engine hood is opened.
. The push-button ignition switch is
pressed.
. The brake pedal is depressed.
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