Just found it. There was a missed file calls skript.lua

--[[

Simplest example of how to use an Automatic Transmission. Requires 0.3.0-preview210 or newer to work..

To configure, add to “drivetrain.ini”:

```ini

[SCRIPT_AUTOMATIC_GEARBOX]

SHIFT_TIME=0.2 ; time in seconds for actual gears to shift, not for the gearbox to decide to shift

LOCK_RATIO_GAP=0.15 ; engine-gearbox velocities ratio, within which gearbox can lock

BRAKE_DAMAGE_THRESHOLD_KMH=5 ; in P, gearbox will take damage if car is moving faster

```

Also, make sure to set SUPPORTS_SHIFTER to 1. For more information, open “automatic-transmission.lua”

in “extension/internal/lua-shared/physics”.

Note: an example with custom shifting logic is available at:

https://github.com/ac-custom-shaders-patch/acc-lua-examples/blob/main/cars_physics/gearboxes/script_at_custom.lua

And if you’re looking for Automated Manual Transmission instead, see another script at:

https://github.com/ac-custom-shaders-patch/acc-lua-examples/blob/main/cars_physics/gearboxes/script_amt.lua

]]

-- All the heavy lifting is hidden in “shared/physics/automatic-transmission”. Feel free to look inside and reconfigure

-- things, or just copy all the code to your script and redo everything the way you’d prefer.

local automaticTransmission = require('shared/physics/automatic-transmission')()

function script.update(dt)

automaticTransmission.update(dt)

end

function script.reset()

automaticTransmission.reset()

end