Alarm key fob repair

One of the reasons why your car's electronic key may not work is wear and tear on the electrically conductive coating of the rubber buttons. This problem is typical for all key fob models, but, fortunately, it can be eliminated. I want to share my experience of how I resolved this issue.

Necessary tool


In order to restore the ability of rubber buttons to make contacts, you will need the following materials and tools:
  • Aluminium foil.
  • A small amount of glue.
  • Hole puncher.

Key fob repair


First you need to carefully disassemble the key body. Most often it is assembled with latches that are opened with a knife.
Alarm key fob repair

The next step is mechanical cleaning of the rubber buttons on the reverse side from possible dirt and remnants of the previous metallized coating. I also recommend degreasing the buttons after cleaning them with a small amount of alcohol (it is better not to use gasoline for rubber products).
Alarm key fob repair

Alarm key fob repair

Alarm key fob repair

Now, using a hole punch, you need to make the number of aluminum points necessary for repair, which will serve as contacts.
Alarm key fob repair

Alarm key fob repair

I used superglue to glue the dots to the rubber buttons, but such a rigid connection became unusable after a few weeks, so I used flexible rubber glue to repair it again.It takes longer to dry, but the adhesive seam is elastic and therefore more resistant to pressure. After this repair, I have been using the key fob for several months now, no complaints yet.
Alarm key fob repair

Alarm key fob repair

That's all the repair tricks, I hope my experience will help you solve a similar problem and restore the functionality of your car's electronic key.
Original article in English
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Comments (2)
  1. Guest Vladimir
    #1 Guest Vladimir Guests 3 October 2018 19:20
    1
    There are kits for repairing buttons on remote controls, calculators, and radiotelephones. It comes with round rubber pads for the buttons and silicone glue. Used to repair a Siemens radiotelephone. It turned out really great. Third year no problem.
  2. Fair
    #2 Fair Guests 3 October 2018 20:51
    0
    Back in the 90s, this is how TV remote controls were repaired, is this information for the feeble-minded new generation?