Car Key Fob Repairs
Key fobs today do much more than unlock and start vehicles. However, that added complexity can result in expensive repair costs when one of them fails.
The good news is that most fobs are equipped with flat-watch-style batteries that are simple to replace at home. You may find that a simple reset will allow your fob to function again.
Battery Replacement
A dead battery is the main reason for a key fob not working. It's a simple fix, and it's worth a try before you decide to spend money on a new key fob. Simply take your car to a local hardware or auto parts retailer that carries button cell batteries and purchase the replacement. You can also check the owner's manual (or, if 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.
The majority of fobs have two halves that snap togetherYou'll need to pull the sides apart in order to access the battery. You'll require a small flat-bladed screwdriver or another tool with a thin blade. It's a good idea to look for a notch along the bottom of the fob that you can put your tool in between. You might also want to look out for small pieces that may come loose while working.
When you have your new battery, place it in the same manner 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 functions by pressing a button. If it doesn't work, you may have a problem with your car that requires a specialist to repair or replace.
Some key fobs are difficult to open, and the contacts may be brittle and easily damaged. In these cases, the best option is to speak with a expert or a dealer. When replacing a battery, be gentle and follow your owner's instructions. You may be able to locate a battery similar in a big-box store or discounter, but be sure to check the owner's manual to ensure it's compatible with your vehicle.
Replace the internal key
Most key fobs contain a physical mechanical key, but it's hidden inside the fob to prevent thieves. If the battery inside the fob fails, a blank key is left behind that can be used to open trunks and doors. In some cases it is possible to start certain vehicles. Most people aren't aware of this, but they can save themselves a trip to the dealership by simply replacing the fob battery. Most modern fobs have flat watches-style batteries that are easy to find at hardware stores and auto parts shops. Using the correct type of battery is crucial, however. A bad battery can damage the electronic circuitry, which can cause the battery to fail sooner.
If you replace the battery, and the issue is still there, it could be a sign something else is going on 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 factory programming. If this isn't working, you'll need go to a dealer or independent shop that specializes vehicle-security systems and key fob programming.
Fobs may also malfunction because of faulty transmitter receivers. They are typically located close to the steering wheel or in the dashboard. They transmit signals to allow you to unlock your car and begin it using the fob. If you notice that you're having to get closer and closer to your vehicle to be able to make it work, there's a high chance that the transmitter isn't working.
It could be necessary for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver is usually enough to suffice, but some fobs require a specialized tool or special equipment that can only be purchased at a dealer. It is a good idea to have a qualified mechanic handle this job to ensure you don't accidentally break the fob or cause injury to yourself.
Reprogramming the Key
A key fob that's not working could just require a new battery. Since key fob repairs are inexpensive and readily available at pharmacies and home improvement stores, this is an excellent first step prior to buying a new car key fob.
Alternatively, you may be able to program the fob on your own by following a few basic steps. The procedure varies for different vehicle manufacturers, so it is important to read the owner's manual and study the specifics of the model you own. One key fob might require that the ignition switch be switched on when reprogramming. Another might need the key to be removed and inserted multiple times.
The procedure is easy. First, ensure that the new battery is in place. Close all doors except the driver's door. This will ensure the new key is communicating with the vehicle in a correct manner. After that, put the old key back into the ignition and turn it to the ON position, but don't start the engine. Press the lock button while aiming the fob at the receiver of the transmission. This is usually located on the front, above the mirror. Within a short time frame the key will announce to the vehicle that it's programmed by turning off the doors' locks or generating a chime. This process can be tricky so it's essential 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 fresh batteries. If the issue persists, you might want to check with your local locksmith or dealer. A professional locksmith will have the tools and programming equipment needed to reprogram your car's fob or make a new key if it's needed.
Genesky claims he is able to program newer fobs ranging from $200 and $250, depending on the model of vehicle. He's been denied European models turned away because they don't have the equipment required. A majority of the aftermarket fobs are programmed, but you should always check with your local dealer to find out the cost.
Getting a New Fob
If your key fob is simply beyond repair, you might require a new one. Based on the make and model, the dealer or an auto locksmith may be able to help. The dealership will likely be the most expensive alternative for replacing a fob However, they'll have all of the necessary tools and software to program your vehicle correctly. For a more affordable option, a number of independent locksmiths can provide you with new car keys for a more affordable price.
It is a good thing to attempt to reset your current device before you rush out to buy another one. The owner's manual should outline the correct reset procedure. This is usually a series button presses that reset the factory program.
You should also check the owner's manual and warranty information to determine if you can get an additional fob for your key. If your car's warranty is still active or you have an auto club or insurance policy that covers bumper-to-bumper you could qualify for a reimbursement on the cost of a replacement fob.
Finding the right where to purchase a fob can be difficult. You may want to visit the dealer to get this service if you are driving a brand new car and you want peace of mind knowing that your keyfobs are working properly. If you are seeking a less expensive alternative, it is possible to find a locksmith who will offer the same service for less cost.
A professional locksmith is a good option for those who aren't comfortable with this type of work. They are equipped and trained to replace or reprogram car key fobs of all kinds and can do it quickly. Locksmiths is also able to visit your office or home which is a great option for a lot of people. They can even cut and program keys on the spot in case you've lost keys, which is great for those who prefer not to leave their vehicles unattended.