The Tesla Christmas Light Show

Your Tesla already has a holiday show built in, and so does every other Tesla on the street. It is the same performance to the same track, year after year. A custom show is the one where the car dances to a song you chose. Here is how to have one running before December, and the small number of things that actually go wrong.

What a custom Christmas show actually is

Two files in a folder. A .fseq file, which is the choreography, a brightness value for every light on the car for every frame of the song. And your own copy of the audio. They sit together in a folder called LightShow on a USB drive, they share a filename, and the car plays them in step.

You bring the music. We build and distribute the light pattern, never the audio, so the song stays your legally owned copy.

Pick the song first

Christmas songs suit this format unusually well. Carols are built on clear, marked beats, and the well-known ones give you a structure the whole street recognises within two bars. Anything with a strong pulse and a build reads well on a car.

There are 29 Christmas shows ready to go in the library, each of them previewable in 3D on your exact model before you commit to anything:

• All I Want for Christmas Is You
• Wizards in Winter
• Christmas Eve / Sarajevo 12/24
• Carol of the Bells
• Run Rudolph Run
• Jingle Bell Rock
• Last Christmas
• Rockin Around the Christmas Tree (Brenda Lee)
• You're a Mean One, Mr. Grinch
• Carol of the Bells (Lindsey Stirling)
• Merry Christmas, Happy Holidays
• It's the Most Wonderful Time of the Year
• Feliz Navidad
• Sleigh Ride
• Underneath the Tree
• The Christmas Song
• A Mad Russian's Christmas
• It's Beginning to Look a Lot Like Christmas
• A Holly Jolly Christmas
• Santa Claus Is Coming to Town
• Wonderful Christmastime
• Dance of the Sugar Plum Fairy
• Rudolph the Red-Nosed Reindeer
• See all 29 Christmas shows

Or build one from any song you like. Upload the track, pick your model, and the engine choreographs the lights to its beats.

Getting it onto the car

1. Add the show to your library and export the .fseq built for your model.
2. Put your own copy of the song beside it, with the same filename.
3. Both files go in a top-level folder named exactly LightShow on a drive formatted exFAT.
4. Plug in, then open Toybox → Light Show.

If the popup says Light Show rather than Custom Light Show, the car did not accept the drive and it is a format, folder or filename problem. The USB drive guide walks the whole checklist. In Chrome or Edge the builder can write the stick for you instead, song included.

A whole driveway of them

The version people film is several cars at once. Up to eight Teslas can run one song together, each car taking its own part, and they hold together because every Tesla sets its clock from the same network time source. You agree a start time, everyone taps at once, and the street gets an orchestra.

Christmas is when this actually becomes possible for most people, which is the real reason to mention it here rather than in the abstract. It is the one time of year the family cars end up in the same driveway on the same evening. Two is enough to be worth doing. The difference between one car and two is much larger than the difference between two and four, because two is where call and answer starts working: a phrase on one car, the reply on the other.

This is also the part a downloaded file cannot do for you. Dividing one piece of music into parts that make sense on the specific cars you have, with each car's closures moving in the right place, is work done per set rather than per song. The multi-car guide covers how the parts are divided and how much room to leave between cars. Multi-car sets are part of Creator rather than sold per show, since a set is several exports by definition.

Treat it as a season, not a night

The people who enjoy this most do not pick one song and run it until Boxing Day. December is four or five weeks of people walking past, and a show that delighted a family on the first Saturday is one they have already seen by the twentieth. Changing what is on the drive across the month is closer to how it actually gets used.

There is a practical argument for it too. The first setup is the only slow one: formatting the drive, learning where the folder goes, working out where to park. Everything after that is copying two files. So the sensible shape is to do the fiddly part in November and spend December simply choosing, which is also why the Christmas collection is worth a browse before the month starts rather than during it.

Three practical things

• Point the car at the audience. Most of the choreography lives in the front lights, so a car facing the street reads far better than one parked side-on.
• Keep it short. The shows people rewatch run one to three minutes. A full-length track outstays its welcome.
• Test it once, indoors, in daylight. You are checking that the car finds the drive at all. The spectacle you already know works.

Common questions