Why does the key light keep flashing?

2 Answers
VonLane
09/05/25 5:12am
If the key light keeps flashing, it could be due to a faulty contact switch inside the key head or a dead battery. It is recommended to visit a repair shop to diagnose the specific cause. Additionally, when the engine is still running or the power is not completely turned off, and the car remote key leaves the control range of the vehicle, the car's anti-theft system will activate. After removing the ignition key and closing the door, the anti-theft indicator light flashing is a normal phenomenon. The car's smart keyless entry system utilizes RFID (Radio Frequency Identification) technology and a vehicle identity code recognition system. It pioneers the development of compact, low-power RF antenna solutions and successfully integrates remote control and keyless systems while maintaining traditional vehicle circuit protection. This achieves a true dual RF system and dual anti-theft protection, providing convenience and security for car owners.
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AdrianaDella
09/17/25 5:37am
Why does the key light keep flashing? I often encounter this issue, and most of the time it's caused by insufficient battery power in the key. When the small coin cell battery's voltage drops after prolonged use, the indicator light will flash to remind you to replace it. Don't worry, you can handle it yourself: locate the key's opening slot, buy a CR2032 battery to replace it, which only costs a few dollars. In some cases, it might be due to accidentally pressing a button or the key getting damp, leading to poor internal contact. Additionally, the car's anti-theft system may occasionally flash the light during normal operation, but if it keeps flashing non-stop, you should be alert as it could indicate signal interference or hardware failure. I recommend regularly checking the battery life to avoid getting stranded while using the car. The key is your security guard; taking good care of it can save you trouble. Don't wait until it keeps flashing to address the issue—routine maintenance is as important as adding an extra lock to your beloved car.
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