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How to repair a key fob

After years of trusty service, your car key fob button decides to fall apart! You could go to the garage or mechanic and pay a lot of money for a new one... OR you could follow this super simple guide and fix your key fob back to it's former glory! Hooray!

sugru is great for this because:

- it is hard wearing and durable

- bonds really well to nearly all plastics used for key fobs

- it cures to a flexible rubber so feels great when you press it with your thumb!


  • 1 5g minipack of sugru
  • Your key fob
  • A felt tip pen
  • Scissors
  • A piece of recycled plastic (preferably clear)

Step 1

key fob with missing button

First off, save the small rod that touches the chip in the middle of the flop.

Step 2

Waste plastic cut with scissors

Next up, cut a piece of plastic (you can find some in your recycling bin) to fit inside the button space. (if you fill the button space with sugru it will not be flexible and easy to press!)

TOP TIP: If you use clear plastic, you can draw over the button space to get the exact shape!

Step 3

Plastic piece attached to fob with Sugru

Cut open your minipack of sugru and knead it in your fingers for approximately 30 seconds.

Then, use a small piece of sugru to bond the plastic to the rod.

Step 4

Sugru applied over plastic piece

Apply sugru to the top of the plastic and a few mm around it to create your button!

Press the sugru firmly against the the housing of the fob to ensure a good bond.

Step 5

Sugru smoothed with finger

Gently rub your finger over the surface of the sugru to give a smooth finish.

Now leave it cure overnight.

Step 6

Sugru button being pressed with thumb

The next morning and the sugru has cured. Get Pressing!