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Switching procedure:
To switch the hazard indicator and horn (chime) operation, push the LOCK *1 and UN- LOCK *2 buttons on the Intelligent Key simultaneously for more than 2 seconds.
. When the hazard indicator mode is set, the hazard indicator flashes 3 times.
. When the hazard indicator and horn mode is set, the hazard indicator flashes once and the horn chirps once.
Page 3-16 in the Owners Manuals

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