Why is a key on a car flashing continuously?
2 Answers
A key on a car flashing continuously can be divided into three situations: 1. The car's remote control key leaves the control range when the engine is not turned off or the power is not fully shut down, entering the vehicle's anti-theft system state; 2. A green light flashing continuously indicates that the smart key battery is about to run out, and it is recommended to replace the key battery; 3. There is a fault in the electric steering lock system or the smart system. The functions of the car key are: 1. After turning off the engine, close the car windows by long-pressing the lock button on the remote control key; 2. Remote window opening, long-press the unlock button for several seconds, and all four windows will open together; 3. Automatic trunk opening, the car remote control key has a trunk opening button, long-press the trunk unlock button, and the trunk will automatically pop open.
My car key also keeps flashing, which is quite common, mostly because the battery is nearly depleted. There's a small button battery inside the key, and when it runs low after prolonged use, it flashes to remind you to replace it. Changing the battery only costs a few dozen yuan, and you can just open it up to take a look. If it's not a battery issue, then it might be that the button is stuck and hasn't popped back up—I've seen cases where someone had the key pressed in their pocket, causing the light to flash wildly. Sometimes, it's due to signal interference, like from large electrical appliances nearby messing with the key's signal. I recommend first checking the buttons and the battery. If that doesn't work, take it to a professional shop to test the electronic system to avoid affecting normal driving. In any case, don't worry too much; it's usually a minor issue.
