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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8 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.

  3. Noel Gordon says:

    compustar 5400 one way 2009 F150 King Ranch

    • admin says:

      I believe our customer service staff replied directly to you via email on this. Because the Compustar 5400 module is a system component to enable phone communications only, we need more information about the rest of your system.

  4. Laurel Anthony says:

    My 2006 Honda Civic had a ProStart system fcc id:nahrs5304 installed. The battery died due to non use. We boosted it and then re-charged the battery.
    When we turned the car off and tried to start it again, the car alarm went off and stayed on thru its whole cycle. How do I reset the fob so that the alarm doesn’t come on?
    The alarm will come on too as soon as I put the key in the door to open it manually or when I try to start the car.

    • admin says:

      It is true than when a car battery goes dead, the alarm receiver in your vehicle can lose its programming link to the transmitter. If you need assistance reprogramming your system, we can help you with that over the phone. Please contact a technical support person in our call center. The call center is open from 8am-5pm Central time, Monday-Friday. You can reach it by calling 281-820-0300 or 877-719-1900 (toll-free in US), then choosing option 3 for tech support when the auto attendant answers.

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