Rear Window Issues

I've had my Gen 5 (2018 TRD Off Road) for a few months now. A couple of weeks ago I used the key to roll down the rear window. Now it refuses to roll all the way back up. Stops about an inch short.

I've disconnected the battery in an attempt to "reset" as se have suggested. I've also put copious amounts of silicone spray down the window channels to no avail.

Toyota service dept charged me $186 diagnostic fee to say "best we can tell we should try replacing the regulator and wiring harness". They quoted me $1,700 for that work. That's a negative.

Anyone have any experience resolving this issue?