Subaru Legacy BN/BS (2015-2019) Owners Manual: Starting and stopping engine (models with push-button start system)

Steering lock

After stopping the engine and the key is removed from ignition switch, the steering wheel will be locked due to the steering lock function. When the engine is restarted, the steering lock will ...

Starting engine

WARNING  There are some general precautions when starting the engine. Carefully read the precautions described in "General precautions when starting/stopping engine" ...

Other materials:

Power saving function
To protect the access key battery and the vehicle battery, the keyless access function will be disabled as follows.  When the keyless access function and the remote keyless entry system have not been used:  5 days after the push-button ignition switch has been turned off, ...