Car Key Fob Repairs

Today's key fobs do a lot more than unlock and start vehicles. This added complexity could cause costly repair costs when it fails.

It's important to know that most fobs are powered by flat-watch-style batteries which can be replaced at home. It is possible that a simple reset is enough to allow your fob to function again.

Battery Replacement

The most frequent reason why the key fob ceases to function is because of the battery being dead. It's simple to fix and worth trying before you purchase the replacement fob. Simply take your car to a local auto parts store or a hardware retailer that sells button cell batteries and pick up an alternative. You can also consult the owner's manual (or YouTube for videos explaining how to replace the battery) to find specific instructions on how to open and replace the battery inside your fob.

Most fobs come with two halves that snap togetherYou'll need to pry the sides apart to get to the battery. You'll usually need a small screwdriver or a different tool with a thin, flat blade. You can insert your tool into a notch at the bottom of the key fob. It is also advisable to look for tiny pieces that may come loose while working.

Once you have the new battery, insert it the same way that you removed the previous one. The positive (+) side should face the buttons and the negative (-) the marks on the compartment for the battery.

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 specialist to fix or replace.

Some key fobs require special tools to open and close, fob and the connections inside may be delicate and susceptible to corroding. In these cases an expert in the field or dealer may be your best option. If you're looking to replace a battery, try to be very gentle and follow the instructions that are specific to your owner's manual. You might be able to find an identical battery at a big-box store or discounter, but be sure you read the owner's manual to ensure it's compatible with your car.

Replace the internal key

Most key fobs contain an actual mechanical key that is hidden within the fob to prevent thieves. If the battery inside the fob fails and the key is discarded, a blank one is left behind that can be used to unlock trunks and doors. In some cases, this key can 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 are easy to find at auto parts stores and hardware shops. It is essential to choose the correct kind of battery. A bad battery can cause damage to the circuitry and cause the fob to fail much earlier.

If the problem continues to persist after you replace the battery, it may be a sign that there is something else going on with your vehicle. Review the owner's manual of your vehicle to determine if there's an option to reset the fob and restore the fob's factory programming. If this isn't working, you'll need go to a dealer or a shop independent that specializes in security systems for vehicles and key fob programming.

Fobs can also malfunction because of faulty transmitter receivers. These are usually located close to the steering wheel, or in the dashboard. They transmit signals that enable you to unlock your car and start it with the fob. You may need to get closer to your car to get it to work.

It could be required for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver will usually suffice, but certain fobs require a special tool or equipment that can only be found at a dealership. This is a job that must be handled by a qualified mechanic to avoid damaging the fob and yourself.

Reprogramming the Key

A key fob that's not working could just require an upgrade in battery. Because these batteries are cheap and easily available at pharmacies and home improvement stores, this is a good first step before purchasing the purchase of a new car key fob.

You may also be able to reprogram the fob on your own by following the steps. The procedure varies for different vehicle manufacturers, so it is important to refer to the owner's manual and research the specifics of your model. For example the key fob might require that the ignition be on while reprogramming it. A key fob might require the key to be inserted multiple times.

The general procedure is very easy. First, make sure that the new battery is securely in place. Then, sit in the driver's seat and close all doors, with the exception of the driver's side door. This will ensure that the new key is communicating with the vehicle correctly. Put the old key in the ignition and turn it on, but do not start the engine. Press the lock button while aiming the fob at the receiver for transmission. It is usually located on the left side, just above the mirror. Within a brief time, the key will indicate to the vehicle that it's programmed by triggering the doors' locks or generating the sound of a chime. This is a difficult process, so pay close attention to timing and don't over-press the button.

If the key fob isn't working try reprogramming it using new batteries. If the issue is still there, you may want to visit your local locksmith or dealer. A professional locksmith will have the tools and programming equipment needed to reprogram your car's fob or make the key if needed.

Genesky says he can usually program newer fobs for around $200-$250, based on the model of vehicle. But he's had to turn away customers with European models because he doesn't have the expensive equipment they require. Luckily, the majority of aftermarket fobs can be programmable, but it's always recommended to consult the dealer of your choice first to see the price.

How to get a new fob

If your key fob is simply beyond repair, you might need to purchase an entirely new one. Depending on your vehicle's model and make, an auto locksmith or dealership may be able to help. The dealership is likely to be the most expensive choice for a replacement fob but it also has the tools and software needed to program your car correctly. For a more affordable solution, a variety of locksmiths can provide you with a brand-new car key fob at a lower cost.

It is a good thing to attempt to reset your current device before you rush out to buy an entirely new one. The owner's manual will outline the proper procedure for reset which is typically a series of button pushes that restores the factory settings.

It's also a good idea to read your owner's manual and warranty information before you decide the best place to get the replacement of your key fob. If your car key and repair's warranty still active or you have an auto club or car insurance policy that covers bumper-to-bumper you could be eligible for a reimbursement of the cost of a replacement fob.

Getting a fob is easy enough, but finding the right location to get it done can be tricky. If you own a new car and fob want the peace of mind that comes with knowing that your keys fobs are in good working condition, you may be better off visiting the dealership for this service. If you're looking for an option that is more affordable it is possible to find a locksmith who is independent who can provide the same service for a lower cost.

If you aren't comfortable handling this type of work yourself, a professional locksmith may be a great option. They are trained and equipped to repair or replace the majority of car key fobs, and often, they can accomplish the task in a short time. Additionally, locksmiths will often visit your workplace or home to complete the task which is convenient for some people. They can even cut and program keys on the spot when you've lost keys, which is great for those who do not want to leave their cars unattended.