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Car Key Fob Repairs

Key fobs today do a lot more than simply unlock and start vehicles. But that extra complexity can result in costly repairs in the event that one of them malfunctions.

The good news is that most fobs use flat watch-style batteries that are simple to replace at home. You might find that a simple reset is enough to allow your fob to function again.

Battery Replacement

A dead battery is the most common reason for the fob's key not working. This is easy to repair, and is worth a try before you decide to spend money on a new fob. Simply take your car to an auto parts store or hardware retailer that sells button cell batteries and pick up a replacement. You can also check your owner's manual (or in the case that you don't have one, YouTube is full of videos from people explaining how to do it) for specific instructions for opening and replacing the battery in the specific type of fob you have.

You'll need to gently pry apart the sides of most fobs in order to access the battery. You'll need a small, flat-bladed screwdriver, or another tool with a thin blade. You can wedge your tool into a notch on the bottom of the key fob. It is also advisable to look out for small pieces that could break loose while working.

When you have your new battery, place it in the same way that you removed the old one. The positive (+) side should face the buttons and the negative (-) the marks on the battery compartment.

Push a button to test the fob. If it fails, it might be a problem with your vehicle that needs to be repaired or replaced by a professional.

Certain key fobs can be difficult to open and the contacts could be fragile and easily damaged. In these instances you should consult a specialist in your car or dealer may be the best option. If you're looking to replace the battery, make sure to be gentle and follow the instructions specifically in the owner's manual. You might be able to find a similar battery at a discounter or a big-box retailer but you'll have to check the owner's manual to make sure that it's the right one for your vehicle.

Replacing the Internal Key

The majority of key fobs have a physical mechanical key that is hidden within the fob to stop thieves from getting. If the battery of the fob fails, it leaves behind a blank internal key that is able to unlock trunks and doors (and in some cases start certain vehicles). Most people aren't aware of this however, they can avoid having to go to the dealership by simply replacing the fob battery. The flat watch-style batteries are used in most modern fobs. These batteries can be found at auto parts stores and hardware stores. Choosing the right type of battery is important however. The wrong type can damage the circuitry and lead to the fob to fail much earlier.

If you change the battery and find the issue persists it could be an indication that something else is happening with your vehicle. If you have an owner's guide and you're not sure, try to determine if a reset procedure is available to restore the fob's original programming. If this doesn't work, you'll need to visit a dealer or an independent shop that specializes in vehicle security systems and fob programming.

Fobs may also fail due to faulty transmitter receivers. They are usually found near the steering wheel or in the dashboard. They transmit signals to enable you to unlock your car and begin it using the fob. If you notice that you're required to move closer and closer to your vehicle in order to make it work, there's a high chance the transmitter is failing.

A professional might need to open 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 a special piece of equipment which can only be found at a dealer. This task should be performed by a certified mechanic in order to ensure that the fob is not damaged and yourself.

Reprogramming the Key

A key fob that's not working could just require an upgrade in battery. They are easily available in home improvement and pharmacy stores and are cheap. This is a good option to begin before purchasing an entirely new key fob.

Alternatively, you may be able to program the fob yourself by following a few basic steps. The procedure varies for different vehicle manufacturers, so it is important to consult your owner's manual as well as research the specifics of your particular model. For example, one mobile key fob repair fob may require the ignition to be on while reprogramming it. One key fob could require the key fob repairs to be inserted several times.

The procedure is easy. Make sure the battery is securely in place. Close all doors except the driver's door. This will ensure that the new fob is communicating with the vehicle properly. Then, put the old key back into the ignition and turn it on to the ON position, but do not start the engine. Then, press the lock button on the fob, while making sure to point it towards the transmission receiver, which is typically located in the front of the vehicle above the mirror. The key will signal to the vehicle within a short period of time that it's being programmed. This can be done by cycling the door locks or by emitting an audible chime. This is a challenging process, so pay attention to the timing and avoid pressing too hard the button.

If the key fob doesn't function after reprogramming, you can try using a new battery. If the problem persists you should visit your car dealer or a locksmith is a good idea. A professional locksmith will have the tools and equipment to reprogram your car's fob or clone a new key if it's required.

Genesky says he can usually program newer fobs for around $200-$250, based on the vehicle. But he's had to turn down customers who have European models because they don't have the costly equipment required. Fortunately, most aftermarket fobs are programmable, but it's always recommended to consult the dealer of your choice first to see what the cost is.

How to get a new fob

If your key fob is damaged beyond repair car key remote, you could need to purchase a new one. Depending on your vehicle's make and model, an auto locksmith or a dealership may be able to help. The dealership will likely be the most expensive option for a replacement fob, but they will also have all of the necessary tools and software needed to program your car correctly. If you are looking for a less expensive solution, a variety of locksmiths will be able to provide you with a brand-new car key fob at a lower price.

It is a good thing to try to reset your current device before you decide to buy an entirely new one. The owner's manual should provide the correct reset procedure. It is typically a series button presses which restores the factory settings.

You should also check the owner's guide and warranty information to see whether you are eligible for an alternative fob for your key. If your car's warranty is still active or you have an auto club or car insurance policy that covers bumper-to-bumper you could qualify for a reimbursement of the cost of replacing the fob.

Finding the best location to purchase a fob can be a challenge. If you own a new car and want the security with knowing that your keys fobs are in good condition, you may prefer going to the dealership for this service. However, if you want a more affordable option it is usually possible to find a locksmith who is independent who can provide the same service for a lower cost.

A professional locksmith is a great choice If you're not confident doing this kind of work. They are certified and equipped to replace or reprogram all kinds of car key fobs, and often, they can accomplish the task in a short time. A locksmith is also able to visit your house or office which is a great option for many. They can even cut and program keys on the spot in case you've lost them, which is ideal for those who don't like to leave their cars unattended.