Re-Programming Remote Transmitters After Car Battery Disconnected

We sometimes get calls from people who say that their remote transmitters “just stopped working”. Often, they say they put new batteries in the transmitters and they still do not work.

One of our first questions is “Have you recently had a dead car battery or had work done on your vehicle?” The reason we ask this is because a dead or disconnected car battery can sometimes “erase” the memory of a factory keyless entry or aftermarket alarm systems receiver. If this is the case, the transmitters should work again once the system is programmed to accept the transmitters again.

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4 Responses to Re-Programming Remote Transmitters After Car Battery Disconnected

  1. Winston says:

    Hello. I have a CODE ALARM (FCC ID:GOH PANO8) thats stop working ofter i change my car battery. Can u please tell me what to do.

    • admin says:

      If your Code Alarm remote stops working after your car battery is disconnected, you will have to re-program it. To do this, you will need to locate the valet switch or button associated with the aftermarket alarm system. It is usually mounted on or under the dashboard on the driver’s side of the vehicle. Sometimes, installers simply affix it with a twist tie to other wiring under the dash. It is also helpful to have a working siren for your system. Programming instructions can be found in your system manual.

  2. Emma Smith says:

    My Hyundai Trajet had to car battery disconnected now the key does not start the car. Does the key need reprogramming?

    • admin says:

      Yes, the receiver in your vehicle may need to be reprogrammed to accept your remote. Lost memory of synched remotes is a common occurrence when the car battery is disconnected.

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