Car Key Fob Repairs

Key fobs today do much more than just unlock and start vehicles. This extra complexity can result in costly repairs when it fails.

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

Battery Replacement

The most frequent reason the key fob ceases to function is because of a dead battery. It's easy to solve and is worth a try before you spend money on an alternative fob. Take your car to an auto parts store or hardware retailer that sells button cell batteries and purchase the replacement. You can also consult the owner's manual (or in the event that 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 the specific type of fob you have.

The majority of fobs have two halves that snap together- you'll need to gently break the sides in order to access the battery. You'll require a small flat-bladed screwdriver, or a different tool with a small blade. It might help to look for a groove along the bottom of the fob which you can use to place your tool between. You might also want to be on the lookout for small pieces that may be loosened while working.

When you have your new battery, insert it in the same manner that you removed the old one. The positive (+) side should be facing the buttons and the negative (-) the markings on the compartment for the battery.

Test the fob to see whether it is working by pressing the button. If it doesn't work, there could be an issue with your vehicle that requires a professional to fix or replace.

Some key fobs require special tools to open and close, and the connections inside could be fragile and susceptible to corroding. In these situations you should consult a specialist in your car or the dealer will likely be your best option. If you need to replace the battery, make sure to be very gentle and adhere to the specific instructions in the owner's manual. You might be able 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

Most key fobs contain the physical key mechanical that is hidden within the fob to prevent thieves. When the fob battery dies it leaves an internal key blank that is able to unlock trunks and doors (and in some cases, even start certain vehicles). Most people don't know this however they could avoid from a trip to the dealer by simply replacing the fob's battery. The flat watch-style battery is found in most modern fobs. They can be found at auto parts stores and hardware stores. Using the correct type of battery is important however. A bad battery can cause damage to the circuitry and where to repair car key remote lead to the fob's failure earlier.

If you replace the battery and discover that the issue persists, it could be a sign that something else is going on with your vehicle. Go through the owner's manual to see if there's a reset procedure that can bring the fob back 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 fail due to malfunctioning transmitter receivers. These are usually built into the dashboard or next to the steering wheel, and transmit signals that allow you to open and start your car with the fob. If you notice that you're being required to get closer and closer to your vehicle to be able to make it work, there's a good chance the transmitter is failing.

A professional might have to open the case of the fob to replace the transmitter. A simple screwdriver can usually suffice, but certain fobs require a special tool or a special piece of equipment that can only be found at a dealer. It's a good idea to have a certified mechanic handle this job to ensure you don't damage the fob or injure yourself.

Reprogramming the Key

A key fob that's not working might just need an upgrade in battery. These batteries are readily available in home improvement and pharmacy stores and are inexpensive. This is a good method to start before you purchase a new key fob.

You can also re-program your key fob on your own If you follow the steps below. This process varies between vehicle makes, so it's important to consult your owner's manual as well as research the specifics of the model you own. One key fob could require that the ignition switch be switched on when changing the program. Another may require the key to be inserted and removed several times.

The general process is simple. First, make sure the new battery is securely in place. Close all doors, except the driver's door. This will ensure the new fob is communicating with the vehicle properly. 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 towards the transmission receiver. It is usually located on the front above the mirror. The key will notify the vehicle within a brief amount of time that it is being programmed. This can be done by turning the door locks, or emitting an audible chime. This process can be tricky and it's crucial to be aware of the timing and not to over-press the key button.

If the key fob still does not work Try reprogramming it with new batteries. If the problem persists, a visit to your car dealer or locksmiths should be considered. A professional locksmith will have the tools and programming equipment necessary to re-program your car's fob, or create a new key if it's required.

Genesky says he's able to program newer fobs for around $200-$250, depending on the car. Genesky has been denied European models rejected because he lacks the expensive equipment needed. A majority of the aftermarket fobs are programmed, but always check with your local dealer to determine the price.

Finding a New Fob

If your key fob cannot be fixed, you could need to buy an entirely new one. Depending on the brand and model, the dealership or an auto locksmith might be able to help. The dealership is likely to be the most expensive choice for a replacement fob but it will also have the tools and software necessary to program your car correctly. Many independent locksmiths offer a new car key remote repair key fob for an affordable price.

It is a good thing to attempt to reset your current fob before you decide to buy a new one. The owner's guide should explain the correct method of reset. This is usually an orderly press that restores the factory programming.

It is recommended to review your owner's manual and warranty information prior to deciding the best place to get the replacement of your key fob. If your vehicle's warranty is still in effect or you have an auto club or car insurance policy that covers bumper to bumper, you may qualify for a reimbursement of the cost of replacing the fob.

Finding a fob is simple enough, but finding the right location to do it can be a challenge. If you own a new vehicle and you want the security with knowing that your key fobs are in working order, you may be better off visiting the dealership for this service. If you're looking for a more affordable alternative, it's possible to find a locksmith that can provide the same service for an affordable cost.

If you aren't comfortable handling this type of work on your own, a professional locksmith may be a good option. They are skilled and equipped to reprogram or replace the majority of car key fobs, and they can often do it quickly. Additionally, locksmiths is often able to come to your office or home to do the job which is practical for some. They can cut and program keys on site if you've lost them. This is perfect for those who don't want to leave their vehicle in the garage.