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Remote Key Fob Repair

Modern vehicles are equipped with remote keys that can be used to lock, unlock or start the vehicle. As with any high-tech piece equipment, there could be issues.

They are generally easy to repair. It can be as simple as resetting it which you should be able to accomplish by following the resetting guidelines in the owner's manual.

Check the Battery

The remote control is powered by the battery inside a key fob. It's a tiny and affordable component that needs to be replaced regularly to ensure that the fob's function is maintained. There are a variety of reasons your key fob may not be functioning, aside from the battery. Physical damage, water exposure or internal component malfunction could be the reason. If your key fob is not working then replace the battery.





First, ensure you have the right size battery. The majority of modern key fobs are powered by a three-volt CR2032 that is readily available in a variety of stores. The size of the majority of these batteries is printed on the edge of the key fob. You can identify the type of battery your vehicle requires by searching for the brand name.

Once you have the proper battery take a moment to open your key fob, and then remove the existing battery. Take a photograph of the inside of the fob to ensure that you put it back in the correct way. This simple trick will prevent you from purchasing another fob if you made a mistake when making it back together.

Some key fobs also have a mechanical backup key known as an emergency blade. The key blade is situated within the key fob and allows you to unlock the door of the driver's seat of your car in the event that the remote control is not working. To open the blade of the key, you must locate the notch in the middle of your fob. The notch is usually a circle that's hidden by the fob's plastic casing.

If you want to be extra cautious you can use a multimeter to check the voltage of the battery. The majority of modern key fobs come with an integrated voltmeter, however you can get a multimeter at many hardware stores for a few dollars. Generally, the battery should read at 3.0 volts or greater. A reading that is lower than this could indicate that the battery is at its end and needs to be replaced immediately.

Check the Buttons

Car key fobs may seem to be nothing more than, high-tech convenience items however, they're not indestructible. They can cease functioning after a period of time, particularly when they are frequently used or if they were subjected to physical abuse. Most of the time, it's easy to diagnose an issue and fix it by using a remote fob. Most of the time, all that is needed is an upgrade to the battery.

Modern car key fobs come with numerous buttons that serve different functions. For instance they can unlock and lock the doors and activate the panic button, and open the trunk. When a button on the fob is pressed it sends a radio code to a receiver within the vehicle. Some fobs also have a button that can start the engine, which is especially handy on cold winter mornings or hot summer days.

Typically, the buttons on keys can be reset by taking the device apart and then checking to ensure they aren't broken or stuck. The battery connector terminals on the key fob can be loose in time, even though they aren't intended to be removed. Soldering can be used to connect the button contacts to the circuit board in case they've been disconnected. This will restore the fob's functionality.

If a fob gets damaged or dropped, the buttons could be damaged, misaligned or out of alignment. These types of problems are generally more difficult to solve on your own, but they can be resolved by a local auto shop with the right tools and expertise.

Keep a spare key fob in a safe place, just in case the one you use frequently stops working. You can avoid being stranded in the middle of nowhere without keys, or paying a lot to have the vehicle taken to the dealer. Make sure to check your car insurance, car club membership, or extended warranty coverage to determine the cost of replacing a replacement key fob.

Check the Casing

It's not unusual for a key fob to get wet, be it from a pool, a rainstorm, or even your washing machine. The resultant moisture can cause destruction on the electronics inside, causing numerous malfunctions. It's good to be aware that you can save a key fob from destruction by following a few simple steps and drying it thoroughly.

The first step is to check the buttons are still functioning properly. This usually means removing the buttons, cleaning them, and rebuilding them. If the buttons do not pop back in or feel stuck, it's probably time to replace the remote.

You should also check the case to ensure there is nothing that could be affecting the operation of the key fob. Utilize tweezers to remove the case and take out the battery, however, do not remove the circuit board or antennas. If you disturb the circuits that keep your key fob's programmed, you will need to visit an Interstate All Battery Center or dealer to reprogram it.

After you've replaced and removed the battery, it's an ideal idea to dry out the fob by placing it in a plastic bag with silica gel or other desiccating agent. This will avoid future moisture problems and make your key fob more robust.

If, after all this, the fob is still not working properly, you'll need to visit a dealer or an independent shop that specializes in your particular type of vehicle. They can re-program the fob's key to your vehicle, and hopefully restore it to its full functionality.

If all else fails, you can purchase a replacement keyfob online or at your local NAPA Auto Parts shop. These do-it-yourself-operated remotes look like your factory fob, but are much less expensive and are able to be paired with your vehicle by following simple instructions. NAPA provides a variety of replacements that you can re-program in minutes.

Check the Connections

Your key fob might stop working even though it is still programmed for your car. It could be due to many reasons, including damaged battery terminal contacts or buttons. If this is the case, you might be capable of fixing it yourself by doing basic maintenance.

The first thing you need to ensure is that the backup remote you have is able to lock and unlock the doors of your car. If it does, you may have an issue with your primary remote. If not, then it's time to try replacing the battery in the backup remote.

Before you replace the battery, it's recommended to take off your key fob and perform an examination of the circuit board. You'll want to make sure that there aren't any broken solder joints that require to be replaced with solder. When you're done you can replace the battery and rebuild the key fob.

After you have replaced the battery and reassembled the key fob, you should test the connection to your vehicle. This can be accomplished by inserting a small flathead screwdriver in the notch on the bottom of your key fob. From there, you'll be in a position to take apart the two parts of your key fob and gently remove the circuit board. Make sure to insert a brand new CR 2032 3V battery, making sure that it's placed with the negative side facing down. After you've inserted the circuit board, you can rebuild the key fob and try again.

If this doesn't work for you, then you may have a larger issue. In this case, you will need to call your dealer or an independent service shop that is specialized in the model of your car. They can identify the issue by using a radio-frequency tester an instrument that determines if your key fob transmits signals to the computer in your car.

Hopefully, on front page has been helpful for anyone experiencing issues with their car's key fob. Contact us if have any questions or concerns. We'll be glad to help you get on the road again in Deptford or Cherry Hill.