How to Fix a Key Fob That isn't Working

If your key fob doesn't work then you can fix it with a few simple steps. The first step is to be sure that it's not the backup remote.

If your backup remote cannot lock and unlock the doors of your vehicle, it is most likely that the primary remote isn't working. Most car remote key failures are caused by circuitry or battery issues.

Battery

It is not uncommon to find a battery on the car key fob repairs near me key fob to degrade. It is simple to replace a battery. However it is crucial to select the right type. You can consult your owner's manual or call the manufacturer to find out the right kind. It's also a good idea to examine the battery compartment thoroughly because dead batteries can leak caustic chemicals that can cause damage to the remote. If replacing the battery does not fix the issue there could be other issues requiring professional attention. If the buttons are broken or stuck for instance it might be necessary to take the remote apart and rework each component. You can also try reprogramming your car to recognize the new key fob.

Buttons

From repeated use, key fobs can become worn and dirty. This is not atypical however, it can cause buttons to stop functioning or require a long press to function. This can be very frustrating, especially if you are away from home and you need to start your car. Fortunately, even worn-out or broken buttons can usually be fixed with just a bit of time and some of the materials you have in the home.

First, verify that the batteries have been correctly installed and that the indentation on the back of the button has been filled. Take the remote apart and look over the circuit board. Check for Keyless Entry Repair indications of rust or other signs the buttons have been worn or damaged. For instance the paint that conducts electricity could be missing. Then, using the Q-tip, dipped in alcohol to gently clean any membrane contacts that have become worn or where conductive paint is missing. Be careful not to rub too hard, since this could cause damage to the conductive painting and prevent the button from firing when it is pressed.

Also, be sure to check the battery connector's terminals for any loose solder connections. If this is the case, simply connecting them back can restore function to the button. The same method can be used to restore functionality to any other loose connections within the fob.

If any of the rubber buttons located at the front of the keyfob are not functioning or require to be press extremely hard, the graphite disks at the back of the button might have worn out and require replacement. You can usually do this by rubbing a pen across the disks. This will bring the button back to life.

If none of these solutions work or you cannot get the button to respond when pressed hard, it is possible that the circuitry is failing. This can be fixed by a quick clean and re-soldering, but it is recommended to have an additional fob available in the event this method fails for you.

Circuitry

The circuit board of your remote control may be dirty regardless of whether the buttons on the key fob function or not. A very thorough inspection is often enough to resolve this problem. Broken and damaged cases are the most common causes of boards that are dirty. A broken case allows water and other debris to pass through and short out the electronic components. Water can also damage pins and vias, which are small connectors on the board.

If you are handy enough to open your key fob, and aren't afraid of making some mess, we can remove the buttons from their sockets and solder in new ones. It's also worth checking the battery terminal connections. If they're loose, the buttons might not function properly or become stuck in their down position. Soldering terminals and Keyless Entry repair buttons back into place is usually enough to restore a non-working fob back to working.