17 Reasons Why You Shouldn't Avoid Car Key Fob Repair

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Car Key Fob Repairs

Key fobs of today do a lot more than unlock and start cars. But that extra complexity can add up to high repair bills when one of them fails.

It's good to know that the majority of fobs are powered by flat watch-style batteries, which can be replaced at home. You may even find that a reset can make your device work again.

Battery Replacement

A dead battery is the most frequent reason for the fob's key not working. This is easy to fix, and it's worth trying before you decide to spend money on a new key fob. You can pick up a new button cell battery at a local auto part retailer or hardware store if you have one. You can also refer to your owner's manual (or in the event that you don't have one, YouTube is full of videos of people who explain 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 access the battery. You'll usually need a small screwdriver or some other tool equipped with a thin, flat blade. You can wedge your tool into a notch at the bottom of the key fob. You might also want to keep an eye out for small pieces that could be loosened while working.

Once you have your new battery, insert it the same way that you removed the previous one. Make sure that the positive (+) side is facing upwards towards the buttons, and that the negative (-) side of the battery is aligned correctly with the marks inside the battery compartment of your fob.

Push a button to test the fob. If it doesn't work, you may have an issue with your car that requires a specialist to repair or replace.

Certain key fobs require special tools to open and close them, and the contacts inside can be fragile and easily corroded. In these situations an expert in the field or the dealer will likely be the best choice. When replacing a battery, be patient and follow your owner's instructions. You might be able locate a comparable battery at a discounter or a big-box retailer, but you'll need to consult your owner's manual to ensure that it's compatible with your vehicle.

Replacing the Internal Key

Most key fobs include the physical key mechanical that is hidden within the fob to stop thieves from getting. When the battery in a fob dies, a blank key is left behind that can be used to open doors and trunks. In certain cases it is possible to start certain cars. A majority of people don't realize they can save a trip to a dealership by replacing the fob batteries. The flat watch-style batteries are used in the majority of modern fobs. These batteries can be found in hardware stores and auto parts stores. Choosing the right type of battery is important, however. The wrong kind can damage the electronic circuitry, causing the fob to fail earlier.

If you try replacing the battery and find the issue persists it could be a sign something else is going on with your vehicle. If you have an owner's manual, check to see if there is a reset option available to restore the fob's factory programming. If this doesn't help you'll have 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. These are usually located close to the steering wheel, or on the dashboard. They transmit signals to allow you to unlock your vehicle and start it using the fob. If you're required to move closer and closer to your car to get it to work, there's a great chance that the transmitter isn't working.

It might be required for a professional to access the case of the fob to replace the transmitter. A simple screwdriver is usually enough to do the trick, but some fobs require a specialized tool or equipment which can only be found at a dealership. This is a job that should be done by a qualified mechanic to ensure that the fob is not damaged and yourself.

Reprogramming the Key

Most of the time, a key fob that isn't working just requires a new battery. These batteries are readily available in pharmacy and home improvement stores and are affordable. This is a great way to start before buying a new key fob.

You can also change the programming of your key fob by yourself If you follow some basic steps. The process is different for different vehicles manufacturers, so it is important to read the owner's manual as well as research the specifics of your model. For instance the key fob might require that the ignition be turned on while reprogramming it. Another key might require the key to be inserted and removed multiple times.

The general procedure is very simple. First, make sure that the new battery is securely in place. Then, get into the driver's seat and shut all doors, with the exception of the driver's side door. This will ensure the new key is communicating with the vehicle in a correct manner. Insert the old key into the ignition, turn it on, but don't start the engine. Then, press the lock button on the fob, while aiming it at the transmission receiver, which is usually located on the front of the vehicle above the mirror. The key will signal to the vehicle within a brief amount of time that it is being programmed. This can be done by cycling the door locks or emitting an audible chime. This procedure can be difficult, so it's important to be attentive to the timing and not to over-press the key button.

If the key fob doesn't function after reprogramming, you can try using a new battery. If the issue persists, you might want to check with your local dealer or locksmith. A professional will have the tools and equipment to reprogram your car's fob or clone a new key if it's required.

Genesky claims he is able to program newer fobs between $200 and $250, depending on the model of vehicle. But he's had to refuse customers with European models because he doesn't have the expensive equipment they require. A majority of the aftermarket fobs are programmed, but you should always inquire with your local car dealer to find out the price.

Finding a New Fob

If your key fob cannot be repaired, you may have to purchase an entirely new one. Depending on the make and model, an auto locksmith or dealership may be able to help. The dealership is likely to be the most expensive option for a replacement fob, but it also has the tools and software required to program your car correctly. Many locksmiths in independent shops offer a brand new car key fob for an affordable price.

Before you rush to get an entirely new device, it is recommended to consider resetting your current one. Your owner's manual should outline the correct procedure for reset which is typically pushing a few buttons which restores it to factory programming.

You should also check your owner's guide and warranty information to see if you can get a replacement key fob. If your car's warranty is G28 in good standing or you have an auto club or insurance policy that covers bumper to bumper you could qualify for a reimbursement of the cost of a replacement fob.

Finding the right location to purchase the fob you need can be difficult. If you own a new car and would like the assurance with knowing that your keys fobs are in working condition, you might prefer going to the dealership for this service. If you are looking for a cheaper alternative, it is possible to find a locksmith that will offer the same service at an affordable cost.

If you aren't comfortable handling this type of work on your own A professional locksmith could be a great option. They are skilled and equipped to repair or replace most types of car key fobs, and often they can do it quickly. A locksmith can also visit your office or home which is convenient for many. They can cut keys and program them on the spot in case you've lost keys. This is great for those who don't want to leave their car in the garage.