Running one light show on several Teslas at once
A row of Teslas playing the same show is a crowd pleaser. The idea is simple, and the practical details are about drives and timing. This guide covers both, with and without Maestro.
Checked against Tesla’s published light show guide on November 12, 2026.
The basic idea: one drive per car
Every car reads its own USB drive. So for three cars you need three drives, each with its own LightShow folder containing a .fseq and audio pair. Set each drive up the way the USB drive guide describes: exFAT or FAT32, a top-level LightShow folder, matching file names, 44.1 kHz audio.
Tesla says a show is not model-specific, so you can copy the same two files onto every drive and run them on a Model Y, a Model 3, and a Cybertruck. Each car plays the lights it has. The lights by model guide explains the differences.
How to start the cars together
On each car, plug in the drive, wait a few seconds, then open Toybox, Light Show, and Schedule Show, and select the show. Then start them at the same moment.
Tesla’s published light show guide does not describe a synchronized start, so treat this as manual. Agree on a cue, such as a count from three, and have someone at each car. Starting by hand will not be perfect to the frame, so a small offset between cars is normal.
Each car plays its audio through its own cabin speakers, so identical files on every car will sound slightly out of step if the start times differ.
Why the same show on every car can look flat
If every car plays an identical show, you get unison, which is striking but never changes. Some people prefer a show where the cars take turns, with the cars answering each other. That needs a different file for each car, which is hard to build by hand.
Maestro’s multi-car export
On the Mac, Maestro has an Export for Multiple Cars option. You choose from 2 to 8 vehicles, pick each model, and Maestro writes one folder per car, named by position, for example Car1_ModelY_Left, with a LightShow folder inside each. It offers two modes:
- Sync: every car plays the whole show, tailored to its model.
- Duet: call and response. The cars take turns, with the neighbouring car answering, while the big moments, such as drops and the final ring-out, play on every car together.
Channels a particular car cannot answer are removed from its file. Closures such as doors and liftgates are never split between cars, so a door that opens in one car’s file also closes in it.
You then copy each car’s LightShow folder to its own USB drive. Maestro’s drive check can inspect each one. Then start the show on every car at the same time, as above.
Planning the row
Decide the order before you export, because the folders are named by position. For two cars Maestro uses Left and Right, for three it adds Center, and for four and five it adds Far Left and Far Right. Beyond five the positions are numbered slots.
Mixed rows work. If one car is a Cybertruck and the others are Model Ys, tell Maestro, and each car’s file is tailored to what that car can do. Each row also has an Older body switch for Model 3 and Model Y cars from before the refreshes, because their lights respond differently.
Keep the drives and the folders tidy. Copy only one car’s LightShow folder onto each drive, and keep the name LightShow, since the car looks for exactly that.
A short checklist for the day
- Label each drive with its car.
- Test each drive in its car beforehand. The popup should say Custom Light Show.
- Leave time for the cars to read the drives after you plug them in.
- Pick the show on every car, then start together on your cue.
Quick answers
- Can one USB drive run two cars?
- No. Each car reads its own drive, so each car needs a drive with a LightShow folder. Copy the same files to each if you want identical shows.
- Do all cars have to be the same model?
- No. Tesla says shows are not model-specific. A mixed row works, and each car plays the lights it has.
- Is the multi-car export on iPhone?
- Multi-car export is a Mac feature in Maestro.
Want a show made from a song?
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Maestro is an independent app from Molargik Software and is not affiliated with or endorsed by Tesla, Inc. Tesla, Model S, Model 3, Model X, Model Y, and Cybertruck are trademarks of Tesla, Inc.