If the "LOCK" button and "UNLOCK" button are released at the same time, the ETACS-ECU tone alarm will sound, indicating that the horn answerback function can be enabled or disabled.
- Enable the horn answerback function*: The ETACS-ECU tone alarm will sound once.
- Disable the horn answerback function: The ETACS-ECU tone alarm will sound twice.
- Enable the horn answerback function**: The ETACS-ECU tone alarm will sound three times.
NOTE:
*: The horn will sound if the doors are locked with the keyless entry system.
**: The horns sound when the other doors are locked by the keyless entry system with some door(s) has been locked.