
The issue of the rearview mirror heating not working on the Sagitar may be caused by a fault in the electrical wiring. It is recommended to check and repair it promptly. After ruling out the problem with the fuse, you should inspect whether the wiring on the rearview mirror is intact and whether the heating element is malfunctioning. Below is the relevant information: 1. Principle of rearview mirror heating: The working principle of electric heating rearview mirrors is very simple and not very costly. It involves installing an electric heating element (heating film) inside the lenses of both rearview mirrors. In rainy or snowy weather, when the driver turns on the rearview mirror heating function, the heating element quickly heats up to a fixed temperature within a few minutes, usually between 35-60 degrees Celsius, thereby heating the mirror surface to remove fog and frost. 2. Function of rearview mirror heating: It refers to when the car is driving in rainy, snowy, or foggy weather, the rearview mirror can be heated through the electric heating wires embedded behind the mirror surface to ensure the clarity of the mirror surface.

When I noticed the heating function of my Sagitar's rearview mirror wasn't working, I conducted some preliminary checks myself. After starting the vehicle and pressing the mirror heating button, I felt no temperature increase on the mirrors, which made me suspect a blown fuse. Upon opening the fuse box near the dashboard and locating the corresponding fuse for the rearview mirrors using the manual, I confirmed it had indeed blown. Replacing it with a new one restored functionality. If the fuse isn't the issue, the heating element itself might be damaged, often due to rust from frequent water exposure affecting conductivity. Poor wiring connections are also common; gently wiggling the mirror's plug can check for looseness. The heating feature is crucial in humid weather to prevent fogging that compromises safety. Regular cleaning of the mirrors is advised to prevent such issues. If DIY solutions fail, visiting a 4S shop for a professional inspection of the circuit control module is recommended. This issue isn't uncommon in Sagitar models, and replacing small components early can save on major repair costs later.

As someone with extensive car repair experience, a malfunctioning rearview mirror heater usually boils down to a few reasons: a blown fuse, damaged heating element, or wiring issues. First, check the fuse—locate its position in the car's fuse box and try replacing it with a spare. If it still doesn't heat up, the heating wire inside the mirror may be broken, requiring disassembly of the mirror housing (some skill is needed to avoid scratches). Loose wiring connections are common, especially after rain when moisture causes short circuits—clean any waterlogged areas. Sometimes, the control switch has poor contact, so check if the dashboard button responds. Prevention is simple: clean the mirror surface monthly to avoid water and dirt buildup. Remember, don't wait until winter when accidents are more likely.

If the rearview mirror heating isn't working, it means you can't see clearly behind you in rainy or foggy weather, which is too risky. Quickly identify the root cause: 80% of the time it's just a blown fuse, replace it and you're good to go; or the heating wire may have aged and broken, especially in Sagitars after a few years of use. Moisture causing a short circuit in the wiring is also a factor. Don't ignore small issues, get it repaired promptly.


