If your key fob isn't working A few easy steps can fix it. The first step is to make sure that it's not your backup remote.
If your backup remote cannot unlock and lock the doors of your car, it is likely that the primary remote isn't functioning. The most common causes of key malfunctions for car remotes are battery or circuitry issues.
Battery
The battery inside the key fob could be worn out over time. It is easy to replace the battery. However, it is important to select the right type. You can consult your owner's manual or call the manufacturer to find out the correct type. It's also a good idea to examine the battery compartment carefully since dead batteries may leak harmful chemicals that can cause damage to the remote. If replacing the battery does not solve the issue, there may be other issues that require attention from a professional. For instance, if the buttons appear stuck or damaged It may be necessary to disassemble the remote and rebuild its components. car key fob repairs near me can also try reprogramming the vehicle to recognize the new key fob.
Buttons
Key fobs can become filthy and worn out due to repeated use. It is not common for buttons to cease working, or to require a long press to get them working. This can be very frustrating especially when you're away from your home and have to turn on your car. Fortunately, even worn out or broken buttons can usually be fixed with a bit of time and a few items you have in the house.
First, make sure that the batteries are correctly installed and that the indentation at the back of the button is filled. Then, carefully remove the remote and look at the circuit board. Check for signs of corrosion or other indications that the buttons are worn out or damaged, such as missing paint that is conductive. Utilizing a Q-tip dipped in alcohol, gently clean any membrane contacts that have become damaged or have conductive paint missing. Avoid rubbing too hard since this could cause damage to the conductive paint and block the button firing when it is pressed.
Check the battery connector terminals carefully for any loose solder connections. If this is the case, simply reconnecting them can restore functionality to the button. The same method can be used to restore function to any loose connections within the fob.
If any of the rubber buttons on the front of the keyfob are not working or require being press extremely hard the graphite disks on the back of the button could have worn out and need to replaced. You can do this by rubbing a pen over the disks. This should bring the button back to life.
If none of this is useful or if the button still doesn't respond to a hard push It could be that the circuit board is damaged. It is possible to fix this by a quick clean, and replacing the solder, but it is best to have an extra fob on hand in the event that this method does not work for you.

Circuitry
If the keys fob buttons are functioning the circuit board that is inside your remote might be dirty. This problem can be resolved through a thorough examination. Broken and damaged cases are the most frequent causes of boards that are dirty. A broken case allows water and other debris to get in and short out the electronic components. Water can also destroy pins and connectors on the board, which are known as via's.
If you're able to open your key fob and aren't afraid of making a mess, we can take the buttons out of their sockets and then solder new ones. It's also worth examining the battery terminal connections. If they are loose, the buttons might not function properly or become stuck in their down position. Soldering the terminals and button's back in place is usually all it takes to restore keys that are not in 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 if a hole is drilled in them, or if a car door handle or lawnmowers is pushed over them. Failures of the fuse are typically to blame for non-remote chip failures.
If you're handy enough to open a key fob that is sealed and are able to bear the mess, you can easily remove the circuit board and test the fuse with an instrument to verify diode function. If you don't feel comfortable with this, go to your local Oreilly or hardware store and use their RF frequency tester. This will let you know whether the key fob transmits an RF signal.
Programming
Key fobs aren't impervious to destruction and are susceptible to damage through a variety of causes. They may lose their connection with the receiver inside your vehicle because of shocks or a low battery, which calls for changing the program. A professional auto locksmith or dealer will be able to reprogram your key fob and get it back up and running. If resetting or replacing your keyfob does not work it may be necessary to replace it.