Step 1
Download LockChime.wav
Pick a sound and download it. Every file arrives named LockChime.wav in 44.1 kHz, 16-bit WAV, the recommended spec for clean playback. The only hard Tesla requirement is a WAV file named LockChime.wav.
Tesla lock sound file
LockChime.wav: What It Is and How to Use It
LockChime.wav is the exact filename Tesla looks for on your USB drive. Get the path wrong and nothing plays. This covers what the file is, where it goes, which Teslas support it, and where to download 1,760+ free ready-to-use files.
What is LockChime.wav?
When you lock your Tesla, the car checks any connected USB drive for a file named exactly LockChime.wav. If it finds one at the right path, it plays that file through the external pedestrian-warning speaker instead of the default factory chime. Wrong filename, wrong path, or wrong format, and you get the stock sound.
The feature shipped in Tesla's 2023 Holiday Update (software 2023.44). Any Tesla on current software that has an external pedestrian-warning speaker supports it, which is virtually every Tesla on the road today.
Quick answer
LockChime.wav is a WAV audio file that replaces the default Tesla lock chime. Place it at Boombox/LockChime.wav on a FAT32 or exFAT USB drive, plug into a front data port, and set Toybox → Boombox → Lock Sound to “USB.” Every sound in this library downloads already named LockChime.wav and formatted for Tesla, no conversion needed.
Where does LockChime.wav go on the USB drive?
The file belongs inside a folder called Boombox at the root of your USB drive:
USB_DRIVE/
└── Boombox/
└── LockChime.wav ← correct pathCommon mistake: there is no
Locked/ subfolder between Boombox/ and LockChime.wav. The correct path is Boombox/LockChime.wav . Nothing in between.What format does LockChime.wav need to be?
Tesla's only hard requirement is a WAV file named exactly LockChime.wav. For clean, consistent playback, these specs are widely recommended:
| Spec | Value |
|---|---|
| File format | WAV (required) |
| Sample rate | 44.1 kHz |
| Bit depth | 16-bit |
| Duration | 1–5 seconds |
| File size | under 1 MB |
| USB format | FAT32 or exFAT |
Numeric specs above are recommendations for clean playback. Tesla doesn't publish a formal spec beyond requiring a WAV file. Every sound in our library is pre-formatted to these values.
Which Tesla models support LockChime.wav?
The feature requires an external pedestrian-warning speaker. Tesla added it to different models at different times, then enabled the custom lock sound in the 2023 Holiday Update (software 2023.44).
| Model | Supported builds |
|---|---|
| Model Y | All model years |
| Model 3 | Built September 2019 or later |
| Model S | 2021 refresh or later |
| Model X | 2021 refresh or later |
| Cybertruck | All |
Don't see the Lock Sound option? Go to Controls → Software and update to the latest version.
Install in 2 minutes
How to install LockChime.wav on a Tesla
Step 2
Copy it into a Boombox folder
On a FAT32 or exFAT USB drive, create a folder named Boombox and place LockChime.wav inside it. Full path: Boombox/LockChime.wav.
Step 3
Plug into a front USB data port
Insert the drive into a front USB data port (the rear ports are power-only). Give the car a few seconds to index the drive.
Step 4
Switch the source to USB
Open Toybox → Boombox → Lock Sound and change from Default to USB. Lock the car to hear it.
Need model-specific port notes and screenshots? Open the full installation guide.
Download a LockChime.wav file
Every sound below downloads as LockChime.wav, already named and formatted for Tesla. Preview in the browser, download, drop into the Boombox folder, and go. No conversion needed.
LockChime.wav: common questions
What is LockChime.wav?
LockChime.wav is the exact filename Tesla looks for on a USB drive to play a custom lock sound through the external pedestrian-warning speaker. When you lock the car, Tesla checks the connected USB for Boombox/LockChime.wav. If it finds the file, it plays it instead of the default chime.
Where does LockChime.wav go on the USB drive?
Create a folder named Boombox at the root of your USB drive, then place LockChime.wav inside it. The full path is Boombox/LockChime.wav. There is no Locked/ subfolder: that path does not work.
Where can I download a LockChime.wav file?
Every sound in our library of 1,760+ free files downloads as LockChime.wav, already named correctly and formatted to 44.1 kHz / 16-bit WAV. No conversion needed: download, drop into the Boombox folder, and go.
More answers in the full FAQ.