Why does the car key sometimes not respond when pressed?

1 Answers
MacCaleb
07/30/25 4:18am
The specific reasons why the car key sometimes does not respond when pressed are as follows: 1. Nearby interference. Car remote keys transmit signals in the form of radio waves, which are then received by the vehicle's receiver to perform corresponding actions. Facilities such as high-voltage power towers, radio base stations, and even thunderstorms and heavy fog can interfere with radio waves, causing the car key to not respond no matter how much it is pressed. 2. Building obstruction. Radio waves have a certain penetration capability, allowing us to operate the remote even through a wall or a building. However, as the battery power decreases, the strength of the radio waves is also affected. It may work fine when used face-to-face, but the waves may not penetrate when obstructed by buildings. 3. Low battery. As mentioned above, as the battery power decreases, the range and strength of the radio waves diminish. When fully charged, the remote might work from 100 meters away, but with half the battery left, the operational distance might be reduced to only 50 meters. At this point, if you operate the key from 50 meters away, you might only see the indicator light on the key turn on, but the car will not respond. 4. Loss of remote key code. Placing the key in a strong magnetic field or high-temperature environment may cause the loss of the remote key code, resulting in the car key not responding even when it has power. In this case, you need to visit a 4S shop or a professional car key store to re-match the remote key. 5. Remote key circuit board failure. The symptoms of a remote key circuit board failure are similar to the loss of the key code, but the difference is that the remote key can no longer be re-matched and must be replaced with a new one. At a 4S shop, replacing the key involves using a blank remote key sent by the manufacturer and matching it with your car.
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