Why doesn't the car respond when pressing the car remote?

2 Answers
Truman
07/25/25 4:24pm
The reasons why the car remote does not respond when pressed are as follows: 1. The remote key battery is dead. 2. Poor contact or failure of the time control module. 3. Aging of the wireless receiving antenna on the car. 4. The car uses explosion-proof solar film, which blocks the remote signal. Below is relevant information about car remotes: 1. Solutions: (1) Replace the remote battery. (2) Replace the negative reed of the remote. 2. How car remote keys work: (1) Active working mode. (2) Passive working mode. (3) Coil induction mode.
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LaAna
08/11/25 9:47pm
Last time my remote key failed because the battery was dead, but later I found out there are quite a few reasons. For example, the key might be pressed continuously, triggering the unlock function, or it could be in a place with strong signal interference like under high-voltage power lines. Once I went to an underground parking lot in a mall, and the entire floor had such chaotic signals. Now when I encounter such situations, I try the spare key. If the spare works fine, it means the issue is with the main key. Some car keys' circuit boards can fail if they get sweaty or are deformed by heavy objects. I've seen cases where someone kept the remote and phone together, and the remote got crushed. There's also a little trick: pressing the key against your forehead while pressing the button, using your body as a signal amplifier, which is said to increase the transmission range. Of course, it's also common for the car's own receiver to fail, especially after heavy rain when the circuits get damp.
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