What should I do if the heating wire on the rear windshield of my car is broken?

[Julianna]

When the heating wire is damaged, it cannot be repaired and the entire glass needs to be replaced. If the fuse is blown, only the fuse needs to be replaced. Here is a detailed introduction to the heating wire: The electric heating wire on the rear windshield of a car functions similarly to a heating resistor wire. Multiple linear heating resistor wires are evenly distributed on the rear windshield. During rainy, snowy, or foggy weather, when the driver turns on the defrost/fog control switch, the resistor wires are electrified and heat up, raising the temperature of the glass. The frost or fog attached to the glass melts due to the heat, turning into water droplets that flow down or evaporate as mist, thereby achieving the effect of defrosting and defogging. This allows the driver to clearly discern the traffic conditions behind and perform safe operations such as reversing.