Guide / Troubleshooting

Tesla Light Show Not Working? Troubleshooting Guide

You built (or downloaded) a custom light show, plugged in the USB drive, walked out to your Tesla… and got nothing. Or worse: the button says "Light Show" and plays the default holiday sequence instead of yours.

The good news: when a custom Tesla light show doesn't work, it's almost always one of a handful of very specific, very fixable problems. Work through this list in order and you'll find yours.

The 10-second diagnostic. Open Toybox → Light Show on your Tesla's screen. If the popup says "Custom Light Show," your USB is being read correctly, so your problem is with the files themselves (start at fix 3). If it just says "Light Show," the car isn't detecting a valid custom show at all, so the problem is the drive's format or folder structure (start at fix 1). This one distinction cuts your troubleshooting in half.
1

Check your USB drive format (the #1 culprit)

The drive must be formatted as exFAT or FAT32 (on a Mac, "MS-DOS FAT" is FAT32; Linux ext3/ext4 also work). NTFS does not work, and it's the default on many drives sold for Windows PCs, which is why brand-new drives fail so often. Windows: right-click the drive → Format → exFAT. Mac: Disk Utility → Erase → ExFAT. Reformatting erases the drive, so copy anything important off it first.
2

Check the folder name (it's case-sensitive)

At the root level of the drive you need a folder named exactly LightShow: capital L, capital S, no space. lightshow, Lightshow, and Light Show all silently fail. This is the second most common cause of the plain "Light Show" popup.
3

Check the files inside the folder

Inside LightShow you need exactly two things: a .fseq sequence file and a matching .wav or .mp3 audio file, and the filenames must match exactly. myshow.fseq needs myshow.wav next to it; lightshow.fseq paired with song.mp3 won't play. On software 2023.44.25+ you can put multiple shows on one drive, each pair with its own name; on older software keep it to one show. (Curious what's inside the .fseq itself? See .fseq files explained. For the drive itself, the USB drive guide has the whole checklist.)
4

Check your audio file's sample rate

The sneaky one. If the show plays but the lights drift out of sync, your audio is probably encoded at 48 kHz. Tesla expects 44.1 kHz, and 48 kHz files won't sync properly. Music bought from stores is usually 44.1 kHz, but audio exported from video editors often defaults to 48 kHz. Re-export at 44.1 kHz and the drift disappears. When in doubt, WAV at 44.1 kHz is the safest combination.
5

Remove the TeslaCam folder (and everything else)

A base-level TeslaCam folder (common if you're reusing your dashcam drive) blocks the light show. Same for map updates or firmware files. Use a dedicated USB drive: the LightShow folder and nothing else.
6

Check your software version

Custom light shows need software v11.0 (2021.44.25) or newer. Check Controls → Software. They run on Model 3, Model Y, Cybertruck, and 2021-or-newer Model S and Model X.
7

Check the car's state

The car must be in Park with doors closed (and trunk/frunk, unless your show opens them). Start it from Toybox → Light Show → Schedule Show, and make sure you selected your custom show in the dropdown rather than the built-in one.

On a 2025 or newer Model Y, owners report that a show started from the Tesla phone app can skip the front lights. Start it from the car's touchscreen instead.
8

Custom show greyed out, or only the built-in one appears

A drive that passes every check above can still land you here: the car sees the drive, but your custom show is greyed out in the picker, or only Tesla's built-in show is selectable. Owners report the car sometimes needs a nudge to re-read the drive. With it still plugged in, reboot the touchscreen (hold both steering-wheel scroll buttons until the screen goes black and comes back), then open Toybox → Light Show, schedule it for a time other than Now, and then switch it back to Now.

To be straight about what this is: a workaround owners have found, not a documented Tesla procedure. But it costs a minute, and it is worth trying before you reformat a drive that was never the problem. If it works once it tends to work every time on that car.
9

Still broken? The .fseq file itself may be the problem

If everything above checks out and the car errors on the sequence file, the .fseq is invalid, usually built for the wrong vehicle, exported with bad settings, or corrupted in transfer. Each Tesla model has a different set of light channels (a Cybertruck light bar isn't a Model 3 fog light), so a sequence built for one model can misbehave on another. Re-download or re-export the file for your model.

Quick reference checklist

Or skip the manual setup entirely. Most of the problems on this page come from assembling show files by hand. The builder does the whole package for you: upload any song, watch your exact model perform it in 3D, and export a validated, correctly-named, correctly-formatted show. In Chrome/Edge it can even write the USB drive for you, verified byte-for-byte. Your first export is free. Full setup walkthrough in the guide.

Common questions

Why does my Tesla say "Light Show" instead of "Custom Light Show"?

The car is not detecting a valid custom show on the USB drive. Check that the drive is formatted exFAT or FAT32 (not NTFS), that a folder named exactly LightShow (capital L, capital S) sits at the root of the drive, and that there is no TeslaCam folder on the same drive.

What USB format does a Tesla light show need?

exFAT or FAT32 (Linux ext3/ext4 also work). NTFS does not work and is the default on many drives sold for Windows, which is why brand-new drives often fail.

Why are my light show lights out of sync with the music?

The audio file is probably encoded at 48 kHz. Tesla expects 44.1 kHz audio. Re-export the song at 44.1 kHz (WAV is the safest format) and the drift disappears.

Do the .fseq and audio filenames have to match?

Yes, exactly. myshow.fseq needs myshow.wav (or myshow.mp3) next to it in the LightShow folder. On software 2023.44.25 or newer you can put multiple shows on one drive, each .fseq paired with its own matching audio file.

Why is my custom light show greyed out in Toybox?

The car has seen the drive but has not read the show off it. Owners report that rebooting the touchscreen with the drive still plugged in, then scheduling the show for a time other than Now and switching it back to Now, makes it appear. That is an owner workaround rather than a documented Tesla procedure, but it is worth trying before reformatting a drive that was never at fault. If the popup says "Light Show" rather than "Custom Light Show", that is a different problem: the drive itself was rejected.

What software version do custom Tesla light shows need?

Software v11.0 (2021.44.25) or newer, on Model 3, Model Y, Cybertruck, and 2021-or-newer Model S and Model X. Multiple shows on one drive need 2023.44.25 or newer.