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How to Fix a Key Fob That isn't Working If your key fob isn't working There are a few simple steps that can fix it. First, check to make sure it's not your backup remote. If your backup remote cannot lock and unlock the doors of your car, it is likely that the primary remote is not working. The majority of car remote key malfunctions result from circuitry or battery problems. Battery The battery inside the key fob could be worn out over time. It is simple to replace the battery. However it is essential that you choose the right kind. You can refer to your owner's manual or call the manufacturer to determine the right type. It is recommended to examine the battery compartment with care, as dead batteries sometimes leak harmful chemicals that can harm the remote. If replacing the batteries doesn't solve the problem, it may be that there are other issues that require attention from a professional. For instance, if buttons seem to be stuck or damaged It may be necessary to take the remote apart and rebuild its components. You can also try reprogramming the vehicle to recognize the new remote. Buttons Through repeated use, key fobs could become worn and dirty. This is not atypical however, it can cause buttons to stop working or require a very long press to function. This can be very frustrating especially if you're out of town and need to start your car. Even worn-out or malfunctioning buttons are often fixable with a little effort and tools you already have at home. First, ensure that the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open up the remote and examine the circuit board. Look for signs of rust or other signs the buttons have been damaged or worn out. For instance, conductive paint may be missing. Use a Q-tip dipped in alcohol, gently clean any membrane contacts that are damaged or where conductive paint is missing. Avoid rubbing too hard as this can erode the conductive paint and block the button from firing when the button is pressed. Also, make sure to inspect the battery connector's terminals to ensure an unattached solder connection. If this is the case, simply soldering them back in place can restore function to the button. The same process can be used to restore functionality to any other loose connections in the fob. In the end, if any of the buttons made of rubber on the front of the key fob stop working or require a difficult press to function it is likely the graphite disks that are on the back of the button are wearing down and require replacement. It is usually done by rubbing a pencil over the disks. This should bring the button to life. If none of this is useful, or if the button doesn't respond to a firm press, then it may be because the circuit board has become damaged. It is possible to fix this by cleaning and re-soldering your fob but you should also have a spare in case it does not work. Circuitry If the key fob buttons function, the circuit board inside the remote could be dirty. A thorough examination is usually enough to fix this issue. Water and broken cases are the most common causes of dirty boards. A broken case allows water and other debris to pass through and short out the electronics. Water can also get through pins and vias, which are small connectors on the board. If you're able to open up your key fob, and you're not afraid of making a mess, we can de-solder the buttons and put new ones in their place. It's also worth checking the connections between battery terminals. If they are loose, the buttons might not work or even become stuck in their down position. Soldering the terminals, and putting the button back in their place is generally all that's required to return the key fob that is not working to functioning condition. Non-Remote transponder chips The non-remote chips that are sealed are more durable than their remote fobs, but they are susceptible to cracking in the event of a hole being drilled in them, or when a door handle for a car or lawnmower runs over them. car key repairs near me of the time, non-remote transponder chip malfunctions could be attributed to blowing fuses. If you're not comfortable opening the key fob, you can remove the circuitboard and use a multimeter to verify that the diode is working correctly. If you're not comfortable with this, visit your local Oreilly or hardware store and utilize their RF frequency tester. This will tell you whether the key fob sends an RF signal. Programming Key fobs endure a lot of abuse and aren't impervious to damage. They can break their connection with the receiver inside your vehicle due to shocks or low-battery, which requires changing the program. A professional auto locksmith or a dealer in the main, can reprogram your keyfob and get it working again. If resetting or replacing your keyfob does not work, you may need to replace it.