USB stick. Two minutes.
Tesla calls it Boombox. We call it the dumbest, best feature shipped. Six steps, no app, no subscription, no firmware update. Browse the Tesla lock sounds library: 1,760+ free WAVs, pre-formatted.
- Format drive as exFAT or FAT32.
- Use path
Boombox/LockChime.wav. - Front data USB port (glovebox or center console).
- Toybox → Boombox → Lock Sound → USB.
Updated April 20, 2026 for Model Y (Juniper) USB-C install flow.
Six steps. No app.
Download a sound
Pick from the library, or generate one with AI voice. Save the .wav locally.
File must end in .wav. Filename is set automatically.Format your USB
FAT32 or exFAT. Any size works, even 64 MB. Empty stick recommended.
macOS: Disk Utility → Erase → MS-DOS (FAT). Windows: right-click → Format → FAT32.Make a /Boombox folder
Create one folder named exactly Boombox at the USB root. Capital B, case-sensitive.
No subfolders. Place LockChime.wav directly inside Boombox/.Drop the WAV in /Boombox/
The file must be named exactly LockChime.wav. It is the only name Tesla recognizes.
One LockChime.wav at a time. Exact filename required.Plug into a front USB port
Model 3/Y: front console port (USB-C on newer builds, USB-A on older). S/X and CT: center console.
Must be a data port. Rear ports are power-only.Lock the car
Walk away or hit the key fob. Your sound plays through the external speaker.
No sound? Toybox → Boombox → Lock Sound → enable + select file.
Driveway-Grade Pre-Flight Checklist
60-second check before you walk to the car. Catches almost every "USB not showing" failure.
- USB is formatted as FAT32 or exFAT (not NTFS/APFS).
- File is named
LockChime.wavexactly (including capitalization). - Path is
Boombox/LockChime.wavat USB root. - USB is in a Tesla data port (rear ports are power-only).
- Sound length is under 5 seconds.
More detail: LockChime.wav installer, USB format guide, lock sound duration guide.
Detailed Instructions
Step 1: Download Your Tesla Lock Sound
Browse the library: 1,760+ free WAVs and download your pick. Every sound downloads as a ready-to-use LockChime.wav. Funny & meme sounds are a good place to start. Full list: free downloads guide.
Step 2: Copy to USB Drive
Create a folder named Boombox on your USB drive (FAT32 or exFAT), then copy LockChime.wav inside it. Path: USB Drive/Boombox/LockChime.wav
FAT32 vs exFAT USB walkthrough.
Common mistake: wrong folder
LockChime.wav must go inside the Boombox folder, not the USB root. Boombox/LockChime.wav.
Confirm before you leave your desk
Open the USB and confirm one file at Boombox/LockChime.wav. Catches almost every install issue.
Need exact format specs and the correct USB path? LockChime.wav: file format & USB path guide.
Step 3: Connect to Tesla
- Model S/X: Center console compartment
- Model 3/Y: Center console or glovebox
- Cybertruck: Center console USB-A port
Port layout varies by model year
If the first port doesn't show USB in Boombox, try the other front or glovebox data port before changing files.
Step 4: Activate in Tesla Settings
- Tap Toybox on the main screen
- Select Boombox
- Choose Lock Sound
- Change from "Default" to "USB"
- Test by locking your vehicle!
First-lock test
- Step out and lock once with the app or key card.
- Hear your clip? Done.
- Still playing Tesla's default "Light Cycle" chime? Re-check file path and filename, then see the 7-fix troubleshooting guide.
Tesla Model/Year Install Confidence Matrix
Confidence levels are conservative and source-linked.
Hardware requirement: external speaker
Lock sounds play through the Pedestrian Warning Speaker (PWS). Model Y and Cybertruck include it on every unit. Model 3 needs a September 2019 or later build. Model S and Model X need the 2021 refresh. Not sure? Open Toybox → Boombox. If it appears, you have the speaker. Full eligibility FAQ.
| Model | Years | Confidence | Install path | Notes | Sources |
|---|---|---|---|---|---|
| Model Y | 2025+ (Juniper) | Confirmed | Standard LockChime USB path. Test both front data ports if USB does not show first try. | Owner docs and Model Y install walkthrough agree on the same Boombox flow. | S3, S7 |
| Model Y | 2020-2024 | Confirmed | Standard LockChime USB path. | Boombox path documented; aligns with active install guides. | S2, S7 |
| Model 3 | 2024+ (Highland) | Confirmed | Standard LockChime USB path. Prefer glovebox/front data port. | Owner docs support Boombox on current Model 3 platform. | S1, S7 |
| Model 3 | 2018-2023 | Likely | Standard LockChime USB path; expect port-behavior variance by build date. | Older docs and field reports are mostly positive but not uniform across trims/markets. | S8, S7 |
| Model S | 2021+ (refresh) | Confirmed | Standard LockChime USB path. | Current docs and model-specific guidance align on Boombox support. | S4, S7 |
| Model X | 2021+ (refresh) | Confirmed | Standard LockChime USB path. | Boombox documented for current Model X generation; matches install guides. | S5, S7 |
| Model S / Model X | 2016-2020 | Likely | Standard LockChime USB path if Boombox and external speaker hardware are present. | Legacy docs note hardware caveats; results vary by configuration and region. | S4, S5 |
| Cybertruck | 2024+ | Confirmed | Standard LockChime USB path. | Owner docs include the same Boombox customization path. | S6, S7 |
| Model S / Model X | 2012-2015 | Unknown | Check Boombox in-car before USB prep. | Inconsistent evidence for earliest builds; confirm Boombox is visible first. | S4 |
| Roadster (original) | 2008-2012 | Unsupported | No LockChime USB path. | Roadster docs do not include the Boombox/Toybox lock sound workflow. | S9 |
Model Y2025+ (Juniper)
Confirmed- Install path
- Standard LockChime USB path. Test both front data ports if USB does not show first try.
- Notes
- Owner docs and Model Y install walkthrough agree on the same Boombox flow.
- Sources
- S3, S7
Model Y2020-2024
Confirmed- Install path
- Standard LockChime USB path.
- Notes
- Boombox path documented; aligns with active install guides.
- Sources
- S2, S7
Model 32024+ (Highland)
Confirmed- Install path
- Standard LockChime USB path. Prefer glovebox/front data port.
- Notes
- Owner docs support Boombox on current Model 3 platform.
- Sources
- S1, S7
Model 32018-2023
Likely- Install path
- Standard LockChime USB path; expect port-behavior variance by build date.
- Notes
- Older docs and field reports are mostly positive but not uniform across trims/markets.
- Sources
- S8, S7
Model S2021+ (refresh)
Confirmed- Install path
- Standard LockChime USB path.
- Notes
- Current docs and model-specific guidance align on Boombox support.
- Sources
- S4, S7
Model X2021+ (refresh)
Confirmed- Install path
- Standard LockChime USB path.
- Notes
- Boombox documented for current Model X generation; matches install guides.
- Sources
- S5, S7
Model S / Model X2016-2020
Likely- Install path
- Standard LockChime USB path if Boombox and external speaker hardware are present.
- Notes
- Legacy docs note hardware caveats; results vary by configuration and region.
- Sources
- S4, S5
Cybertruck2024+
Confirmed- Install path
- Standard LockChime USB path.
- Notes
- Owner docs include the same Boombox customization path.
- Sources
- S6, S7
Model S / Model X2012-2015
Unknown- Install path
- Check Boombox in-car before USB prep.
- Notes
- Inconsistent evidence for earliest builds; confirm Boombox is visible first.
- Sources
- S4
Roadster (original)2008-2012
Unsupported- Install path
- No LockChime USB path.
- Notes
- Roadster docs do not include the Boombox/Toybox lock sound workflow.
- Sources
- S9
Unknown is not a hard no. If your row is unknown, run the same USB checklist first, then use the troubleshooting sequence before you assume your car is unsupported.
Last verified: April 17, 2026.
Source Notes
- S1: Tesla Owner's Manual: Model 3 (Boombox section)
- S2: Tesla Owner's Manual PDF: Model Y 2020-2024
- S3: Tesla Owner's Manual: Model Y 2025+ (Boombox section)
- S4: Tesla Owner's Manual PDF: Model S/X 2012-2020
- S5: Tesla Owner's Manual PDF: Model X 2015-2020
- S6: Tesla Owner's Manual: Cybertruck (Boombox section)
- S7: TeslaLockSound install guides (Model pages + troubleshooting)
- S8: Tesla Owner's Manual PDF: Model 3 2017-2023
- S9: Roadster owner documentation (legacy platform)
Nothing playing?
Still hearing Light Cycle? 7-fix troubleshooting guide · Tron Mode + Light Cycle explainer.
Tesla still plays Light Cycle after selecting USB
- In Toybox → Boombox → Lock Sound, switch from Default to USB again
- Confirm the path is exactly Boombox/LockChime.wav at USB root
- Confirm filename is exactly LockChime.wav (capital L and C)
- Remove and reinsert the USB drive, then lock once to retest
- If still stuck, run the 7-fix troubleshooting guide
Lock sound not working after installation
- File must be named exactly LockChime.wav (case-sensitive)
- File must be inside a Boombox folder at USB root (Boombox/LockChime.wav)
- Confirm Tesla software is up to date and Boombox is visible in Toybox
- Try a different USB drive (older drives sometimes fail)
- Reboot touchscreen: hold both steering wheel buttons
USB option not appearing in Boombox settings
- Update Tesla software to latest version
- Remove and reinsert USB drive
- Try renaming file again with exact capitalization
- Ensure USB drive is formatted as FAT32 or exFAT
- Test with a smaller capacity USB drive (8GB or less)
Sound cuts off or sounds distorted
- Download a different sound from the library
- Ensure sound file is under 5 seconds
- Check USB drive for corruption and reformat if needed
- Try lowering the volume in Tesla's audio settings
Feature not available on older Tesla
- Update to the latest Tesla software version
- Confirm Boombox appears in Toybox for your model/year
- Some 2019 and earlier models may not support this feature
Frequently Asked Questions
How do I change my Tesla lock sound?
Format a USB drive as FAT32 or exFAT, create a folder named Boombox, and place your WAV file inside named exactly LockChime.wav. Plug the USB into a front data port on your Tesla, then go to Toybox → Boombox → Lock Sound → USB.
What are the Tesla Model Y 2026 custom lock sounds USB instructions?
For Model Y 2026, use a USB-C drive or USB-A-to-C adapter, place LockChime.wav at Boombox/LockChime.wav on a FAT32 or exFAT drive, insert it into a front data USB port such as the glovebox port, then go to Toybox → Boombox → Lock Sound → USB.
Which Tesla models support custom lock sounds?
Model Y, Model 3, Model S, Model X, and Cybertruck are the primary supported lineup. Legacy years vary by hardware and firmware. Use the model/year install-confidence matrix on this page for confirmed, likely, unknown, and unsupported status before you prep your USB drive.
What does 'unknown' mean in the model/year confidence matrix?
Unknown means we could not verify a model/year path with current primary documentation or consistent field reports. It does not mean 'impossible.' Start with the standard Boombox/LockChime.wav checklist, then use the troubleshooting flow if USB does not appear.
What are the Tesla lock sound file format requirements?
Tesla lock sounds must be WAV format (44.1kHz, 16-bit PCM), named exactly LockChime.wav, inside a Boombox folder on a FAT32 or exFAT USB drive. Keep files 1–5 seconds. All 1,760+ sounds on TeslaLockSound are pre-converted to this exact format.
Why is my LockChime.wav not showing up under USB?
In almost every case, one of four things is wrong: the USB format (must be FAT32 or exFAT), the folder path (must be Boombox/LockChime.wav), the filename capitalization (must be exactly LockChime.wav), or the USB port (must be a data port, not power-only).
Why does Tesla still play Light Cycle after I select USB?
Tesla usually falls back to Light Cycle when one setting or file detail is off. Confirm Boombox is set to USB, confirm the exact path is Boombox/LockChime.wav, confirm the filename is exactly LockChime.wav, then reinsert the USB drive and lock once to retest. For the Tron/Light Cycle fallback explainer, see /blog/tesla-tron-mode-sounds-lock-turn-signal.
How long can Tesla lock sounds be?
Tesla lock sounds should be 1–5 seconds. Longer sounds may be cut off. All sounds in the library are within that range.
Can I convert my own audio to a Tesla lock sound?
Yes. Use the free LockChime.wav converter to trim any MP3, M4A, or WAV to 5 seconds and export it in the correct format. Runs in-browser, no upload needed.
Can I use multiple lock sounds on one USB drive?
No. Tesla reads one LockChime.wav at a time. To swap sounds, replace the file on the USB drive.
Are TeslaLockSound files safe for my Tesla?
All files use Tesla's specified format (44.1kHz, 16-bit WAV). As with any vehicle modification, use at your own discretion.
Do custom lock sounds work with Tesla's mobile app?
Yes. Custom lock sounds play when you lock via the app, key fob, or walk-away auto-lock.
Related Guides
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