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LockChime.wav is the exact file Tesla reads for your custom lock sound. Here's the format it needs, where it goes, and how to fix it when it doesn't work.
File name: exactly LockChime.wav (case-sensitive)
Format: WAV, 44.1kHz sample rate, 16-bit PCM
Duration: 1–5 seconds
USB: FAT32 or exFAT formatted
All 950+ sounds on TeslaLockSound download in this exact format. No conversion needed.
Not MP3, not AAC, not FLAC. Tesla only reads WAV files for the lock chime. MP3 files will be completely ignored.
The sample rate must be exactly 44,100 Hz. This is the standard CD-quality rate. Other sample rates may cause distortion or silence.
Uncompressed 16-bit PCM. No floating point, no compressed WAV variants. This is the most common WAV format and what most audio editors export by default.
The file name is case-sensitive. "lockchime.wav" or "LockChime.WAV" will not work. It must be exactly "LockChime.wav".
Step 1: Format a USB drive as FAT32 or exFAT (any size works — even 1GB is plenty).
Step 2: Create a folder called Boombox at the root of the drive.
Step 3: Place your LockChime.wav file inside the Boombox folder.
Step 4: Plug the USB drive into your Tesla's front USB-C port.
Step 5: Go to Toybox → Boombox → Lock Sound and switch from Default to USB.
Full walkthrough with screenshots → Tesla Lock Sound Installation Guide
Tesla only reads WAV files. Convert your MP3 to WAV using our free converter at teslalocksound.com/convert, or download a pre-converted WAV from our library.
The file must be exactly "LockChime.wav" — case sensitive. "lockchime.wav", "LockChime.WAV", and "lock_chime.wav" will all fail.
LockChime.wav must be inside the Boombox folder at the root of the USB drive. Not in a subfolder, not at the root — inside Boombox/.
Tesla USB ports only read FAT32 and exFAT. Reformat the drive (this erases all data on it — back up first).
Custom lock sounds require software version 2023.44.25 or later (the Holiday Update). Check your software version under Controls → Software.
More fixes in our Tesla Lock Sound FAQ (35 answers) and Troubleshooting Guide.
| File | Purpose | Format |
|---|---|---|
| LockChime.wav | Custom lock/unlock sound | 44.1kHz, 16-bit PCM |
| Honk.wav | Custom horn sound (not available on all models) | Same as above |
| Boombox.mp3 | Speaker party mode music | Any audio format |
LockChime.wav is the only file you need for custom lock sounds. It's what Tesla reads from the Boombox folder when you select "USB" as your lock sound source.
Every sound in our library downloads as LockChime.wav in Tesla's exact format. No conversion, no guessing. Pick a sound, put it on USB, done.
Browse 950+ LockChime.wav FilesLockChime.wav is the file name Tesla vehicles look for on a USB drive to play a custom lock sound. It must be a WAV file at 44.1kHz, 16-bit PCM, placed inside a Boombox folder on a FAT32 USB drive.
Inside a folder called "Boombox" at the root of a FAT32 or exFAT USB drive. The full path is: Boombox/LockChime.wav.
No. Tesla only reads WAV files for the lock chime. If you have an MP3, use our free converter at teslalocksound.com/convert or download a pre-formatted WAV from our library.
The most common causes are: wrong file format (must be 44.1kHz 16-bit PCM WAV), wrong file name (must be exactly "LockChime.wav" case-sensitive), wrong folder (must be inside Boombox/ folder), or NTFS-formatted USB (must be FAT32 or exFAT). See our troubleshooting guide for details.
Tesla recommends 1–5 seconds. Sounds longer than 5 seconds may get cut off. All sounds on TeslaLockSound are within this range.