Regulator.
A mechanical assembly that moves the window up and down. It can be controlled by a motor or manual crank. Power Operated. Drive Unit. Liftgate Window. Manual. Module. Power. Sliding Window. Tailgate Window.

Window Regulator

Fits Jetta, Jetta GLI

Jetta; Right.
Window Regulator - Repair or Replace
A failed window regulator can cause your power window to get stuck, make a grinding noise, or make your window appear to be off track. Consider replacing the window regulator on your 2020 Volkswagen Jetta.