Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
Have you checked for broken wires in between the roof and rear hatch, near the hatch hinges?
The rear wiper not working, but the rear washer working doesn't mean the wiring is ok.
Did you physically look for a broken wire in the rubber duct between the roof and the rear hatch?
You could try a stalk switch assembly, and it could be a lucky guess.