Here's a weird one. Tow bar install on a Polo. Rear window was down at the beginning of install and after install wont go up.

It's my sisters car and I haven't seen it. Not sure if it's a genuine bar or aftermarket or which side window it is. My thoughts are

1. blown window fuse.
2. Installers used window power for the tow bar (or cut the wire accidentally).
3. Coding stuffup.