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20 Things You Need To Be Educated About Car Key Fob Repair
Car Key Fob Repairs

Key fobs today can do much more than unlock and start vehicles. This added complexity could lead to expensive repair bills in the event that it malfunctions.

It's important to know that the majority of fobs are powered by flat watch-style batteries, which can be easily replaced at home. It is possible that a reset can make your device work again.

Battery Replacement

A dead battery is the most common cause of a key fob that isn't working. It's a simple fix and worth trying before you spend money on a replacement fob. Simply take your car to an auto parts store or hardware retailer that stocks button cells and choose the replacement. You can also refer to the owner's manual (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to remove and replace the battery in your fob.

You'll need to gently pry off the sides of many fobs to reach the battery. You'll need a small, flat-bladed screwdriver, or another tool with a blade that is thin. It might help to look for a notch along the bottom of the fob which you can use to put your tool in between. You might also want to look for small pieces that could come loose while you work.

Once you have your new battery, place it in the same manner that you removed the old one. Make sure that the positive (+) side is facing up towards the buttons, and that the negative (-) side of the battery is aligned with the markings inside the battery compartment of your fob.

Test the fob to see if it works by pushing a button. If it doesn't, you may have an issue with your car that requires a professional to repair or replace.

Some key fobs require special tools to open and close them, and the contacts inside could be fragile and susceptible to corroding. In these instances an expert in the field or dealer may be the best choice. If you need to replace the battery, make sure to be very gentle and follow the instructions specifically in your owner's manual. You might be able to find an identical battery in a big-box store or discounter, but make sure you read your owner's guide to ensure that it's compatible with your vehicle.

Replacing the Internal Key


Most key fobs contain the physical key mechanical however, it's hidden within the fob to stop thieves from getting. When the battery in the fob goes out it will leave a blank key left behind and can be used to unlock trunks and doors. In some instances the key could even start certain cars. A majority of people don't realize that they can save a trip to a dealership by recharging the fob batteries. The majority of modern fobs utilize flat watch-style batteries that can be found in hardware stores and auto parts shops. The right kind of battery is essential however. A bad battery can cause damage to the circuitry and cause the fob's failure much sooner.

If the problem continues to persist after replacing the battery, it may be an indication that something else is going on with your vehicle. Go through the owner's manual to determine if you have a reset procedure that can restore the fob to factory programming. If this doesn't help then you'll need to go to a dealership or an independent shop that specializes in vehicle security systems and fob programming.

Fobs may also malfunction due to faulty transmitter receivers. These are usually built into the dashboard or near the steering wheel, and they send signals that allow you to open and start your car with the fob. It is possible that you will need to get closer to the car to enable it.

ignition key repair near me might need to open the case of the fob to replace the transmitter. A simple screwdriver can usually accomplish the task however some fobs come with complicated release mechanisms that require a special tool or specialized equipment available only at a dealership. This job should be done by a qualified mechanic to avoid damaging the fob as well as yourself.

Reprogramming the Key

A key fob that is not functioning simply needs a fresh battery. These batteries are readily available in pharmacy and home improvement stores and are cheap. This is a great method to start before you purchase a new key fob.

Alternately, you might be able to re-program the fob yourself by following the steps. This procedure can differ between vehicles, so you should refer to the owner's manual and research your specific model. For example, one key fob may require the ignition to be turned on while reprogramming it. Another may require the key to be removed and inserted multiple times.

The general procedure is very simple. First, make sure the new battery is firmly in place. Then, sit in the driver's seat and shut all doors, excluding the driver's side door. This will ensure that the new key fob is communicating with the vehicle in a proper manner. Insert the old key into the ignition and 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 in 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 accomplished by cycling the door locks or emitting an audible chime. This is a challenging process, so pay close attention to the timing and avoid pressing too hard the button.

If the key fob isn't working try reprogramming it with new batteries. If the problem persists you may want to visit your local dealer or locksmith. A professional will have the tools and programming equipment needed to reprogram your car's fob or make an entirely new key if required.

Genesky says he's able to program newer fobs for $200-$250, depending on the car. However, he's had to refuse customers with European models because he doesn't have the expensive equipment they require. Most aftermarket fobs can be programmed, but you should always inquire with your local dealer to find out the cost.

Finding a New Fob

If your key fob cannot be repaired, you might have to purchase another one. Depending on the brand and model, the dealership or an auto locksmith may be able to assist. The dealership is likely to be the most expensive option for a fob replacement, but they will also have the necessary tools and software needed to program your car correctly. Many independent locksmiths offer a brand new car key fob for a much lower price.

It's a good idea to try to reset the fob you have before you decide to buy another one. Your owner's manual should outline the proper procedure for reset that is typically pushing a few buttons which restores the original programming.

It's also a good idea to check your owner's manual as well as warranty information prior to deciding which place to go for an replacement fob for your key. If your car's warranty is still active or you have an auto club or insurance policy that covers bumper to bumper, you may qualify for a reimbursement on the cost of replacing the fob.

Finding the right place to get a fob can be difficult. If you own a new vehicle and you want the security from knowing that your key fobs are in good working condition, you might be better off visiting the dealership for this service. If you're looking for a more affordable option it is possible to find a locksmith who is independent who can provide the same service at a much lower cost.

If you aren't comfortable handling this kind of work yourself, a professional locksmith can be a great choice. They are equipped and trained to replace or reprogram keys for cars of all kinds, and can do so quickly. Additionally, locksmiths is often able to come to your home or office to do the job, which can be very convenient for some people. They can even cut and program keys on the spot if you have lost keys, which is great for those who do not want to leave their cars in the dark.

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