The 10 Most Scariest Things About Car Key Fob Repair

Car Key Fob Repairs

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

The good news is that most fobs have flat-watch-style batteries that are easy to replace at home. It is possible that a simple reset can make your fob work again.

Battery Replacement

A dead battery is the most frequent reason for a key fob that isn't working. This is a simple repair, and is worth a try before you decide to spend money on a new fob. You can buy a new button cell battery at your local auto parts retailer or hardware store If you own one. You can also consult your owner's guide (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.

Most fobs have two halves that snap togetherYou'll need to break the sides to access the battery. You'll usually need a small screwdriver or some other tool that has a flat, thin blade. It might help to look for a notch along the bottom of the fob that you can use to wedge your tool between. It is also advisable to watch out for small pieces that may come loose while you work.

Insert the new battery the same way as you removed the old one. The positive (+) side should be facing the buttons and the negative (-) the marks on the compartment for the battery.

You can push a button to test the fob. If it doesn't work, there could be an issue with your car that requires a professional to repair or replace.

Some key fobs require special tools to open and close them, 133.6.219.42 and the contacts inside may be delicate and easily corroded. In these situations the best choice is to talk to a specialist or dealer. When replacing a battery, be gentle and follow the owner's manual. You might be able locate a comparable battery at a discounter store or a big-box retailer but you'll have to consult your owner's manual to ensure that it's compatible with your vehicle.

Replace the internal key

Most remote key fob repair fobs include a physical mechanical key, but it's hidden inside the fob to stop thieves from getting. When the fob battery dies it leaves an internal key that is blank that is able to unlock doors and trunks (and in some cases, even start certain vehicles). Most people don't know this however, they can save a trip to the dealership by simply replacing the fob battery. The flat watch-style battery is used in the majority of modern fobs. These batteries are easily found at hardware and auto parts stores. It is crucial to choose the right type of battery. A wrong battery can harm the circuitry and cause the fob's failure much sooner.

If you replace the battery and find the problem persists, it could be a sign something else is wrong with your car. Go through the owner's manual to determine if there's an option to reset the fob and bring the fob back to factory programming. If this fails, you'll need to visit a dealership or an independent shop that specializes in security systems for vehicles and key fob programming.

Fobs can also fail due to faulty transmitter receivers. They are usually found near the steering wheel or in the dashboard. They transmit signals that enable you to unlock your vehicle and start it using the fob. You may have to move closer to the car to get it to work.

A professional may need to open the case to replace the transmitter. A simple screwdriver is enough to do the job, but some fobs have complicated release mechanisms that require a special tool or specialized equipment available only at a dealership. This job should be performed by a qualified mechanic to ensure that the fob is not damaged and yourself.

Reprogramming the Key

A key fob that is not functioning simply needs a fresh battery. They are easily available in home improvement and pharmacy stores and are affordable. This is a great way to start before buying the new key fob.

You can also change the programming of your key fob by yourself if you follow some basic steps. This process can vary between automobiles, so refer to the owner's manual and study the specific model of your vehicle. One key fob could require that the ignition switch be turned on while programming. Another key might require the key to be removed and inserted several times.

The general process is simple. First, ensure that the new battery is firmly in place. Then, get into the driver's seat and close all doors EXCEPT for the driver's side door. This will ensure that the new key fob can communicate with the vehicle properly. After that, put the old key back into the ignition and turn it to the ON position, but do not start the engine. Press the lock button while aiming the fob toward the receiver of the transmission. This is typically located on the front, above the mirror. The key will inform the vehicle within a short period of time that it is being programmed. This can be done by cycling the door locks, or emitting an audible chime. This is a difficult process, so pay attention to the timing and don't press too hard the button.

If the key fob does not work Try reprogramming it with new batteries. If the issue is still there, you might want to visit your local locksmith or dealer. A professional will have all the tools and equipment needed to reprogram your car's fob or design a new one if necessary.

Genesky says he's able to program newer fobs for around $200-$250, depending on the vehicle. He's been denied European models turned away because he lacks the expensive equipment needed. Fortunately, most aftermarket fobs are programmable but it's always best to check with the dealer of your choice first to see the price.

Finding a New Fob

If your key fob is simply beyond repair, you may require an alternative. Based on the make and model, an auto locksmith or a dealership might be able to assist. 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. Numerous locksmiths who are independent provide a new car key fob for a much lower price.

It is a good thing to attempt to reset your current device before you rush out to buy a new one. The owner's manual should explain the correct procedure for reset, which is usually just the pushing of a button that reset the factory settings.

You should also check the owner's guide and warranty information to determine if you can get an additional fob for your key. If your vehicle is under warranty, or you have a car-insurance policy or auto club membership that includes bumper-to-bumper coverage, you may be eligible for reimbursement for the cost of a new fob.

Finding the right place to get a fob can be a challenge. If you have a relatively new car and want the peace of mind that comes with knowing that your keys fobs are in working condition, you may be better off going to the dealership for this service. However, if you want an affordable alternative it is usually possible to find a locksmith who is independent who can provide the same services for a significantly lower price.

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 repair or replace all kinds of car key fobs and they can often complete the task quickly. In addition, a locksmith will often visit your office or home to do the job which can be extremely practical for some. They can even cut and program keys on-site when you've lost keys, which is great for those who don't like to leave their vehicles unattended.