What is the flashing light on the interior rearview mirror?
2 Answers
The flashing light on the interior rearview mirror is the anti-theft system working light. The components and types of the anti-theft system are as follows: Components of the anti-theft system: Generally consists of a remote control, electronic controller, alarm device, and actuator. Types of anti-theft systems: Mechanical anti-theft systems are the most traditional car anti-theft systems, installed directly on the vehicle to prevent theft of items inside. Mechanical anti-theft systems are the cheapest on the market, with simple principles and easy installation, but their anti-theft performance is average. Examples include steering wheel locks, detachable steering wheels, clutch and brake locks, wheel locks, anti-theft magnetic sheets, and gearshift locks, all of which belong to mechanical anti-theft systems. Chip-based anti-theft systems are the mainstream anti-theft method for cars today, with low failure rates, good anti-theft effects, and low maintenance costs. Electronic anti-theft systems are the latest anti-theft method, offering many functions, including anti-theft alarm, vehicle locating, and door ajar warning functions.
I just experienced the same issue. The flickering rearview mirror is usually related to the auto-dimming function. I remember my old car had this exact problem—it wouldn't flicker during daytime dealership checks, but would act up again when driving family members on the highway at night. The mechanic explained that these mirrors detect intense headlights from behind, but the sensor can misjudge when covered by dust blown from AC vents. Later, I thoroughly cleaned the mirror surface with a microfiber cloth and checked for poor contact in the dashboard's anti-glare switch. After half a day's effort, the flickering finally stopped. If your car has electronic dimming, try manually disabling the function first to see if it resolves the issue.
