Car Key Fob Repairs
Today's key fobs do a lot more than unlock and start vehicles. This extra complexity can result in costly repairs when it fails.
It's a good idea to know that a majority of fobs are powered by flat watch-style batteries which can be replaced at home. You may even find that a reset will bring it back to life.
Battery Replacement
The most common reason that a key fob doesn't work is because of an inoperative battery. It's a simple repair, and is worth trying before you decide to spend money on a new key fob. Simply take your car to an auto parts store or a hardware retailer that stocks button cells and choose 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 of people who explain how to do it) for specific instructions on opening and replacing the battery on your particular type of fob.
Most fobs come with two halves that snap together -- you'll need to gently pull the sides apart to access the battery. It's usually a screwdriver or a different tool that has a flat, thin blade. You can put your tool into a slot on the bottom of the key fob. You may also want to keep an eye out for small pieces that may be loosened while working.
Once you have the new battery, insert it the same way that you removed the old one. Make sure that the positive (+) side is facing upwards toward the buttons and that the negative (-) side of the battery is aligned correctly with the markings in the battery compartment of your fob.
Test the fob to see whether it is working by pressing a button. If it fails, it could be a problem in your car that needs to be repaired or replaced by a professional.
Certain key fobs can be difficult to open and their contacts may be brittle and easily corroded. In these instances you should consult a specialist in your car or the dealer will likely be the best option. When replacing a battery be patient and follow your owner's manual. You might be able to find a similar battery at a discounter store or a big-box retailer however, you'll need to consult your owner's manual to be sure that it's compatible with your vehicle.
Replacing the Internal Key
To protect against theft, the majority of key fobs come with a mechanical key hidden inside. When the fob battery dies, it leaves an internal key blank which can open doors and trunks (and in some cases start certain cars). Most people don't realize that they can avoid a trip to a dealership by replacing the fob's batteries. The flat watch-style battery is found in most modern fobs. They can be located at auto parts stores and hardware stores. It is important to use the correct kind of battery. A bad battery can cause damage to the circuitry and lead to the fob to fail much earlier.
If the issue persists after replacing the battery, it may be a sign that there is something else going on in your vehicle. Go through the owner's manual to see if there's a reset procedure that can bring the fob back to factory-setup. If this fails, you'll need go to a dealer or an independent shop that specializes in vehicle-security systems and key fob programming.
Fobs could also fail due to faulty transmitter receivers. They are typically placed on the dashboard or close to the steering wheel, and transmit signals that allow you to unlock 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 great chance that the transmitter isn't working.
car key fob repair may be necessary for a professional to remove the case of the fob in order to replace the transmitter. A simple screwdriver can usually get the job done however, some fobs have complicated release mechanisms that require a special tool or specialized equipment that is available only at a dealership. This task must be handled 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 might just need an upgrade in battery. Because these batteries are cheap and readily available in pharmacies and home improvement stores, it's a good first step before investing in an entirely new car key fob.
You can also re-program your key fob yourself If you follow some basic steps. The procedure varies for different vehicle manufacturers, so it is important to read the owner's manual and research the specifics of your model. For instance the key fob might require that the ignition be turned on while reprogramming it. A key fob might require the key to be inserted multiple times.
The basic procedure is simple. Make sure the battery is securely in place. Then, get into the driver's seat and shut all doors, with the exception of the driver's side door. This will ensure that the new key fob communicates with the vehicle properly. Then, place 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. It is usually located on the front above the mirror. Within a brief time the key will signal to the vehicle that it's been programmed by turning off the doors' locks or emitting a chime. This process can be tricky so it's essential to be attentive to the timing and not to over-press the key button.
If the key fob does not work, try reprogramming it again using new batteries. If the problem persists, a visit to the dealer of your vehicle or locksmiths should be considered. A professional will have all the tools and equipment needed to reprogram your car's fob, or even create a brand new one if necessary.
Genesky says he's able to program newer fobs at around $200-$250, depending on the car. But he's had to turn down customers who have European models because he doesn't have the expensive equipment they require. A majority of the aftermarket fobs are programmed, but always inquire with your local dealer to find out the price.
Finding a New Fob
If your key fob can't be repaired, you might have to purchase another one. Based on the model and make, an auto locksmith or a dealership might be able to assist. The dealership will likely be the most expensive option for a fob replacement However, they'll have all the required tools and software needed to program your car correctly. If you are looking for a less expensive solution, a variety of locksmiths can provide you with new car keys for a more affordable price.
It is a good thing to try to reset the fob you have before you rush out to buy a new one. Your owner's manual should outline the proper procedure for reset that is typically the pushing of a button that reset the factory settings.
You should also look over your owner's guide and warranty information to see whether you can obtain an additional fob for your key. If your vehicle is under warranty, or you have a car insurance policy or auto club membership with bumper-to-bumper coverage, you may be eligible for reimbursement for the cost of the new fob.
Getting a fob is easy enough however finding the best location to do it can be a challenge. If you own a new vehicle and you want the assurance with knowing that your key fobs are in good order, you may be better off going to the dealership for this service. If you're looking for an option that is more affordable it is possible to find an independent locksmith who can offer the same services at a much lower cost.
If you aren't comfortable handling this type of work yourself, a professional locksmith can be a great choice. They're trained and equipped to change or reprogram car key fobs of all kinds and do it quickly. A locksmith is also able to visit your house or office, which is convenient for many. They can cut keys and program them on site if you've lost them. This is perfect for those who don't want to leave their vehicle without a key.