Car Key Fob Repair: What's The Only Thing Nobody Is Talking About

Car Key Fob Repair: What's The Only Thing Nobody Is Talking About

Car Key Fob Repairs

Key fobs today can do more than unlock and start vehicles. But that extra complexity can cause expensive repair costs if one of them breaks.

The positive side is that many fobs have flat-watch-style batteries that are easy to replace at home. And you may find that a reset will get yours working again.

Battery Replacement

A dead battery is the most common cause of a key fob that isn't working.  key fob repair near me 's a simple solve and is worth a try before you spend money on an alternative fob. Simply drive your car to an auto parts store or hardware retailer that stocks button cell batteries and pick up the replacement. You can also refer to your owner's manual (or, if you don't have one, YouTube is full of videos from people explaining how to do it) for specific instructions on opening and replacing the battery in your particular type of fob.

Most fobs have two halves that snap together -- you'll need to gently pull the sides apart to get to the battery. You'll usually need a small screwdriver or some other tool with a thin, flat blade. It might help to look for a groove along the bottom of the fob which you can use to place your tool between. It is also advisable to be on the lookout for small pieces that could come loose while you work.

When you have your new battery, insert it the same way that you removed the old one. The positive (+) side should be facing the buttons, while the opposite side is facing (-) the marks on the battery compartment.

Test the fob to see if it works by pushing a button. If it doesn't work, you may have a problem with your car that requires a specialist to fix or replace.

Some key fobs require special tools to open and close them, and the contacts inside can be fragile and easily corroded. In these cases an expert in the field or the dealer will likely be the best choice. If you're looking to replace the battery, make sure to be very gentle and adhere to the instructions that are specific to your owner's manual. You may be able to find a similar battery at a discounter or a big-box retailer, but you'll need to consult your owner's manual to be sure that it matches your car.

Replace the internal key

To protect against theft, the majority of key fobs come with a mechanical key hidden inside. If the battery inside a fob dies, a blank key is left behind and can be used to open doors and trunks. In some instances the key could even start certain vehicles. Most people don't know this, but they can avoid from a trip to the dealer by simply replacing the fob battery. The flat watch-style battery is found in most modern fobs. They can be located at hardware stores and auto parts stores. Using the correct type of battery is crucial however. A bad battery can cause damage to the circuitry, causing the fob's failure much sooner.

If you replace the battery and discover that the issue is still there, it could be a sign that something else is going on in your vehicle. Go through the owner's manual to determine if you have a reset procedure that can restore the fob to the factory program. If that doesn't help, you'll need to visit a dealership or an independent shop that specializes in vehicle security systems and fob programming.

Fobs may also malfunction because of faulty transmitter receivers. They are typically placed on the dashboard or next to the steering wheel, and they send signals that allow you to open and start your car using the fob. If you notice that you're being required to get closer and closer to your car in order to make it work, there's a good chance the transmitter is failing.

It might be required for a professional to access the case of the fob to replace the transmitter. A simple screwdriver will usually do the trick, but certain fobs require a specific tool or equipment that can only be found at a dealer. This job must be handled by a qualified mechanic to avoid damaging the fob and yourself.

Reprogramming the Key

A key fob that is not functioning simply needs a fresh battery. Because they are cheap and readily available at pharmacies and home improvement stores, it's a good first step before buying an entirely new car key fob.

You can also change the programming of your key fob yourself if you follow some basic steps. This procedure can differ between vehicles, so it is recommended to read the owner's manual and research the model you have. One key fob could require that the ignition switch be switched on when reprogramming. A key fob might require the key to be inserted several times.

The general procedure is very simple. Make sure that the battery is securely in place. Close all doors except the driver's door. This will ensure that the new key fob is communicating with the vehicle in a proper manner. Put the old key in the ignition, then turn it on but don't start the engine. Press the lock button while aiming the fob at the receiver of the transmission. It is usually located on the front above the mirror. In a short period of time the key will signal to the vehicle that it's being programmed by cycling the doors locks or emitting a chime. This is a difficult procedure, so pay attention to the timing and don't press too hard the button.

If the key fob does not work after reprogramming it, try using new batteries. If the issue is still there, you may want to visit your car dealer or locksmith. A professional will have the tools and programming equipment necessary to re-program your car's fob or clone an entirely new key if required.

Genesky says he's able to program newer fobs for $200 to $250, based on the car. But he's had to turn down customers who have European models because there's no equipment they require. Fortunately, many aftermarket fobs can be programmable however it's best to talk to an auto dealer first to see what the cost is.

How to get a new fob

If your key fob is beyond repair, you may require a new one. Depending on the model and make, an auto locksmith or dealership may be able to help. The dealership is likely to be the most expensive choice to replace your fob, but it will also have the tools and software needed to program your car properly. Many locksmiths in independent shops offer a new car key fob at the lower cost.

Before you rush to get an entirely new device it's a good idea to try resetting your current one. The owner's manual should explain the correct procedure for reset that is typically a series of button pushes which restores it to factory programming.


It's recommended to read the owner's manual and warranty information before deciding the best place to get a key fob replacement. If your car is under warranty, or you have a car-insurance policy or auto club membership that provides bumper-to-bumper protection, you may be able to receive some reimbursement for the cost of a new fob.

Finding the right where to purchase a fob can be difficult. It is possible to go to the dealer for this service if you have a newer car and are looking to feel secure knowing that your keyfobs are working correctly. However, if you're looking for a more affordable option it is possible to find a locksmith who is independent who can provide the same services for a significantly lower price.

If you're not comfortable doing this type of work on your own A professional locksmith could be a great choice. They are equipped and trained to change or reprogram keys for cars of all types, and can do so quickly. A locksmith can also visit your house or office, which is convenient for a lot of people. They can cut keys and program them on the spot in case you've lost keys. This is great for those who do not like to leave their car unattended.