How to download Tesla lock sounds on iPhone (2026 guide)

Most Tesla owners are on iPhone, but every install guide on the internet assumes you're on a desktop. This one doesn't. If your only computer is the phone in your pocket, you can still get a custom LockChime.wav onto your Tesla. Here's the exact iOS-only workflow.

What you need

• An iPhone running iOS 15 or later (the Files app is the unsung hero here)
• A USB drive your Tesla can read, formatted FAT32 or exFAT, ideally 8GB or smaller for fastest mount times
• A way to connect that drive to your iPhone:
• iPhone 15 / 15 Pro / 16 / 16 Pro: USB-C drive plugs in directly
• iPhone 14 and earlier (Lightning): Lightning-to-USB adapter, or a dual-headed Lightning + USB drive (SanDisk iXpand, Kingston DataTraveler Bolt, etc.)
• The teslalocksound.com sound library: all files download as a WAV named LockChime.wav

If your USB drive isn't formatted correctly yet, see Tesla USB format: FAT32 vs exFAT. On iOS, the Files app can format drives for you under the drive's context menu.

Step 1: pick a sound and download it

Open Safari on your iPhone and head to the Tesla Lock Sound sound library. Browse by category, tap any sound to preview it, and when you find one you like, tap Download.

Safari will show a small download arrow in the address bar. Every file we serve is already:

• Encoded as WAV, 44.1 kHz, 16-bit (the recommended spec)
• Pre-named LockChime.wav: no renaming needed

That last detail matters. Tesla only plays a file named exactly LockChime.wav. Put it in a Boombox folder on the drive (Boombox/LockChime.wav). Wrong name, no chime.

Step 2: move the file from downloads to your USB drive

This is where iOS users get tripped up. The file is on your phone, but it needs to be on the USB drive. Files app handles both.

1. Open Files
2. Tap Browse at the bottom
3. Under Locations, tap On My iPhone → Downloads: you should see LockChime.wav
4. Plug your USB drive into the iPhone. It will appear under Locations with the drive's label
5. Long-press LockChime.wav → Move
6. Select your USB drive, then open or create the Boombox folder → Move

Now eject the drive properly: long-press the drive name under Locations → Eject. Don't skip this: yanking it can corrupt the file.

Step 3: plug the USB into your Tesla

Use a USB port that carries data (the glovebox port on newer cars; rear ports only charge).

Once plugged in:

• Tesla reads the drive once it is plugged in
• The next time you walk away and the doors lock, you should hear your custom sound
• If nothing plays, see the troubleshooting checklist

Common iPhone-specific issues

"The file won't move to my USB drive"

You're probably hitting iOS's read-only fallback. iPhones can sometimes mount FAT32 drives over 32GB as read-only. Either reformat to exFAT (Files app supports this) or use a smaller drive: 8GB is the sweet spot.

"Files app doesn't see my USB drive"

Three culprits, in order of likelihood:

1. Adapter problem: Apple's official Lightning-to-USB-3 Camera Adapter works reliably. Cheap third-party adapters often pass video but not storage.
2. Drive format: Files app reads FAT32 and exFAT only. NTFS, APFS, and HFS+ won't show up.
3. Drive needs power: Larger USB drives or HDDs may exceed the iPhone's power budget. Use a small flash drive or a powered hub.

"I downloaded the file but it's named LockChime (1).wav"

Safari adds (1) when a file with the same name already exists in Downloads. Rename it back to LockChime.wav before moving: long-press the file in Files app → Rename. Tesla won't recognize anything else.

"My iPhone keeps showing the AirDrop screen instead"

You long-pressed instead of tapping the download arrow. Tap the small arrow icon in Safari's address bar to open the Downloads list, then tap the file to confirm save.

Doing this without a computer? Use AirDrop as a backup

If you also have a Mac in the household, AirDrop the file from your iPhone to the Mac, then drag it onto the USB drive there. Same end result, useful when the iPhone-direct USB workflow misbehaves.

How long does the file stay on the USB drive?

Forever, until you delete it. Tesla doesn't write to the drive; it just reads LockChime.wav each time you lock. You can leave the same drive plugged in permanently. Many owners do exactly this and forget it's there.

If you want to swap sounds without removing the drive, connect the drive back to your iPhone and replace LockChime.wav with a new file. Re-plug into Tesla, done.

What about turn signal sounds?

For the turn signal sound, see Tesla Tron Mode sounds. Custom sounds play on lock only; see the unlock sound explainer.

The iPhone workflow is identical: you can keep other WAV files on the same drive, as long as the one the car reads is named LockChime.wav. Both linked guides cover the exact filenames Tesla expects.

FAQ

Can I install a Tesla lock sound from iPhone without a USB drive?

No. Tesla's lock-sound feature only reads from a USB drive plugged into a USB port that carries data (the glovebox port on newer cars). We found no Bluetooth, AirPlay, or Tesla-app path for custom sounds.

Does this work with Lightning iPhones (iPhone 14, 13, 12, etc.)?

Yes. You'll need either Apple's Lightning-to-USB-3 Camera Adapter or a dual-head USB drive (one end Lightning, one end USB-A) like the SanDisk iXpand. The Files app workflow is identical once the drive is connected.

Why does my Tesla say "no compatible audio device"?

Put LockChime.wav in a Boombox folder on the drive. If the car still doesn't see it, try the top level of the drive; both locations work. Make sure it isn't inside Music, Downloads or TeslaCam.

Can I use my iPhone itself as the "USB drive"?

We found no way to. Use a real USB drive.

What's the smallest USB drive that works?

Capacity is not the constraint: we recommend keeping LockChime.wav under 1 MB. The format matters more: FAT32 or exFAT.

Ready to pick a sound? Head to the Tesla lock sound library: every file downloads as a WAV named LockChime.wav. Want the full install walkthrough with photos? See the installation guide.