Can a Car Remote Key Still Work After Being Washed? How to Fix Malfunctions?

1 Answers
EleanorLee
07/30/25 1:42am
Remote car keys that have been washed or malfunction cannot continue to be used, possibly due to circuit failure. Below is an introduction to car keys: Reasons for remote car key malfunction: The car battery is dead, causing the vehicle to fail to receive signals; the remote car key's battery is dead, preventing the doors from being unlocked; remote control failure is due to the presence of high-power radio signals of the same frequency in the surroundings, which prevents the vehicle's signal-receiving device from detecting the radio-encoded commands sent by the remote key, leading to remote control failure, such as the inability to lock or unlock the doors. Interference can come from large outdoor LED displays, wireless callers on construction site elevators, wireless video monitoring equipment, etc. Normally, radio equipment that meets regulatory requirements does not cause mutual interference, but when certain hardware in such devices malfunctions, it can generate multiple continuous radio stray signals, which may interfere with nearby car remotes, causing them to fail. Solutions for remote car key malfunction: If the remote key's battery is depleted, replacing it with a new one will solve the issue. The internal batteries of keys come in different models, so care must be taken to distinguish them during replacement. If there is strong magnetic interference in the surroundings, you can use the mechanical key to open the door and enter the vehicle, then place the key in the emergency start position to start the car. If the remote key is internally damaged or the signal receiver on the car body is damaged, it needs to be repaired at a service center.
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