Why can't the vehicle detect the key and fails to start?
2 Answers
Vehicle cannot detect the key and fails to start because the steering wheel is in a locked and immovable state. Below are the detailed reasons why the vehicle cannot detect the key: 1. Detailed reasons: The vehicle cannot detect the key and fails to start because the steering wheel is in a locked and immovable state, and the car cannot detect the presence of the key. In addition, if the vehicle is out of fuel, it also cannot detect the presence of the key. 2. Precautions: Car keys should not be placed together with electronic devices. In places with magnetic interference, the car key may not function properly. Additionally, do not throw the car key around, as the internal circuitry of the key has weak impact resistance and is prone to damage under severe collisions.
When the car can't detect the key and won't start, even a seasoned driver like me with ten years of experience has been stumped by this situation several times. The most common reason is a dead key fob battery. The small battery inside the key typically lasts about one to two years, and when it runs out of power, it can't send signals, so the car naturally can't recognize it. Alternatively, the key might be blocked by a phone or metal object. I once placed my key together with my wallet, and the signal got interfered with, leaving the car completely unresponsive. Another possibility is insufficient vehicle battery power. If the battery is old or hasn't been charged, the entire system fails, and pressing the start button does nothing. In such cases, quickly try the spare key—if the car starts, the original key is the issue. If it still doesn't work, move away any interfering objects or try jump-starting the car. Don’t be lazy in daily life—regularly check the key fob battery and car battery to avoid getting stranded on the road. There was also one time in a mall parking lot when I forgot my car key had fallen under the shopping cart and spent a long time searching for it, so even small things require attention.
