Choose a compatible USB drive
Use a reliable USB drive with enough free space for your LockChime.wav file. A small drive is usually all you need.
USB FORMAT GUIDE · ABOUT 5 MINUTES
Format a USB for your Tesla lock sound.
A quick, reliable checklist for preparing a drive that your Tesla can read. Use a PCM WAV file, keep it under 1 MB, and follow the folder and filename rules below.
File system
FAT32 or exFAT
Filename
LockChime.wav
File size
Under 1 MB
Follow these six steps
USB → TeslaFormat the drive as FAT32 or exFAT
Back up anything important first, then format the drive as FAT32 or exFAT. Tesla may not detect drives using an unsupported file system.
Name the sound file exactly LockChime.wav
Use the exact filename, including capitalization and the .wav extension. Keep the PCM WAV file under 1 MB.
Copy the file to the USB drive
Place LockChime.wav in the drive root, or in a folder named Boombox. Do not bury it inside several folders.
Eject the drive and connect it to a data port
Safely eject the drive from your computer, then connect it to a data-capable USB port in your Tesla.
Select the custom lock sound
Open Toybox → Boombox → Lock Sound and choose your file. Availability depends on your vehicle, region, software, and external pedestrian speaker.