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Cybertruck Lock Sound: Install Guide

Cybertruck supports Boombox out of the box on every shipped vehicle. The install path is identical to Model 3/Y/S/X: Boombox/LockChime.wav on a FAT32 / exFAT USB drive in a center-console port. The single Cybertruck-specific quirk: early firmware (vehicle-launch through 2024.20.x) routes Boombox through a separate audio input and requires a full lock cycle with the drive inserted before the USB option appears in the menu.

Quick spec

File path
Boombox/LockChime.wav
USB filesystem
FAT32 or exFAT
Port
Center-console USB-A or USB-C
Audio format
WAV, 44.1 kHz, 16-bit PCM, 1–5 s
Early-firmware quirk
Leave drive in for first full lock cycle
Software floor
2023.44.25+ (Cybertruck ships above this)

Steps

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.

Cybertruck port note

Both a USB-A and a USB-C port sit in the same center-console front-facing tray. Either works for Boombox. 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.

Cybertruck first-activation note

On early Cybertruck firmware (released-with-vehicle through 2024.20.x) Boombox is exposed as a separate audio input. Leave the drive inserted through a full lock cycle before the USB source appears in the menu.

Cybertruck-specific: separate audio input

Early Cybertruck firmware exposes Boombox as a separate audio input on the touchscreen, distinct from the unified Boombox stack on Model 3/Y/S/X. Practically, this means: if your USB drive isn't showing under the Lock Sound source after install, lock the truck once with the drive inserted to trigger the input enumeration. The USB option then appears in the Toybox → Boombox → Lock Sound menu within ~3 seconds.

FAQ

Does Cybertruck have a special audio path for lock sounds?

On early Cybertruck firmware (vehicle-launch through 2024.20.x) the Boombox audio path is exposed as a separate input on the touchscreen, distinct from the standard Tesla Model S/X/3/Y routing. In practice, the install workflow is identical: Boombox/LockChime.wav on a FAT32 or exFAT USB-C drive. The only behavioral difference is that early firmware requires a full lock cycle with the drive inserted before the USB option appears in the menu.

Which USB port should I use on Cybertruck?

Either of the center-console front-facing ports. Cybertruck has a USB-A and a USB-C in the same tray; both are data ports and both work with Boombox. The rear console ports are power-only.

Does Cybertruck require special audio settings?

No, but the external speaker on Cybertruck is louder than other Tesla models. If your chime sounds harsh at the default volume, lower the Boombox volume in Toybox → Boombox → Volume. The Cybertruck PWS hardware projects audio further than the Model 3/Y equivalent.

Cybertruck sound library →Full install guideComplete 2026 guide