Check your fuse box to see if the fuse that controls the heated rear window has blown. If the fuse has blown, replace it with a new fuse of the same amperage.
2. Relay is faulty
The heated rear window relay may be faulty. Locate the relay and replace it with a new one.
3. Wiring is damaged
Inspect the wiring for the heated rear window for any damage. If you find any broken wires, repair or replace them.
4. Thermal overload switch is tripped
The thermal overload switch is designed to protect the circuit from overheating. If the switch has been tripped, reset it by pressing the button.
5. Loose wiring connections
Check all wiring connections related to the heated rear window to make sure they are secure and making proper contact.
6. Switch is faulty
The switch that controls the heated rear window may be faulty. replace the switch with a new one.
7. Damaged heating elements
If none of the above solutions resolve the issue, it is possible that the heating elements in the rear window have become damaged. The entire rear window may need to be replaced.
