Car Key Fob Repair Explained In Fewer Than 140 Characters
Car Key Fob Repairs
Key fobs of today are more than just a way to unlock and start cars. This added complexity could lead to expensive repair bills when it fails.
The good news is that most fobs have flat-watch-style batteries that are simple to replace at home. And you may find that a reset will make your device work again.
Battery Replacement
The most common reason the key fob ceases to function is because of an inoperative battery. It's simple to fix and worth trying before you purchase the replacement fob. You can purchase the new button cell at a local auto part store or hardware retailer in the event that you already have one. 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 in the particular type of fob.
You'll have to gently pull apart the sides of most fobs to access the battery. You'll usually need a small screwdriver or a different tool that has a flat, thin blade. It's a good idea to look for a notch along the lower edge of the fob that you can wedge your tool between. You might also want to keep an eye out for small pieces that could be loosened while working.
Insert the new battery in the same manner as you removed the old one. The positive (+) side should face the buttons and the negative (-), the markings on the compartment for the battery.
Test the fob to see whether it is working by pressing a button. If it doesn't work, there could be a problem in your car that needs to be fixed or replaced by a professional.
Some key fobs are difficult to open and their contacts may be fragile and easily damaged. In these situations, the best option is to speak with a specialist or a dealer. When replacing a battery, be patient and follow your owner's instructions. You might be able locate a comparable battery at a discounter store or a big-box retailer, but you'll need to refer to your owner's manual to be sure that it's compatible with your vehicle.
Replace the internal key
To prevent theft, most key fobs have a mechanical key hidden inside. If the battery inside a fob dies, a blank key is left behind that can be used to unlock doors and trunks. In certain cases the key could even start certain cars. Most people aren't aware of this however, they can save themselves a trip to the dealership by simply replacing the fob battery. The flat watch-style battery is used in most modern fobs. These batteries are easily found in hardware and auto parts stores. It is important to use the right type of battery. A wrong battery can harm the circuitry and cause the fob's failure much sooner.
If the issue persists after replacing the battery, it may be a sign that there is something else going on in your vehicle. Check your owner's manual to determine if you have a reset procedure that can bring the fob back to the factory program. If this doesn't work you'll have 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 located near the steering wheel or in the dashboard. They transmit signals that enable you to unlock your car and begin it using the fob. If you notice that you're required to move closer and closer to your car to be able to make it work, there's a good chance that the transmitter isn't working.
It might be necessary for a professional to access the case of the fob in order to replace the transmitter. A simple screwdriver can usually do the trick, but certain fobs require a specific tool or a special piece of equipment that can only be purchased at a dealership. It is a good idea to have a qualified mechanic do this job so that you don't damage the fob or injure yourself.
Reprogramming the Key
A key fob that's not working might just need a new battery. Because they are cheap and readily available at pharmacies and home improvement stores, it's the ideal first step before investing in a new car key fob.
You can also change the programming of your key fob by yourself If you follow some basic steps. The procedure may differ for different vehicles, so you should read the owner's manual and research your specific model. One key fob could require the ignition to be switched on when programming. Another key might require the key to be removed and inserted multiple times.
The process is straightforward. Make sure that the battery is securely in place. Then, get into the driver's seat, and close all doors, excluding the driver's side door. This will ensure that the new key fob is communicating with the vehicle correctly. Then, place the old key back into the ignition and switch it to the ON position, but don't start the engine. Then, press click to read on the fob while aiming it at the transmission receiver, which is typically situated on the front of the car above the mirror. Within a brief time the key will signal to the vehicle that it's being programmed by triggering the doors locks or emitting a chime. This procedure can be difficult so it's essential to pay attention to the timing and don't over-press the key button.
If the key fob does not work after reprogramming it, try replacing the batteries. If the issue persists then a visit to your car dealer or a locksmith is a good idea. A professional locksmith will have the tools and equipment required to reprogram your car fob or design a new one if needed.
Genesky says that he can program newer fobs ranging from $200 and $250, based on the vehicle. He's experienced European models rejected due to the fact that they don't have the equipment needed. A majority of the aftermarket fobs are programmed, but you should always inquire with your local dealer to determine the cost.
A New Fob
If your key fob can't be fixed, you could need to buy another one. Depending on the model and make, an auto locksmith or dealership might be able to assist. The dealership is likely to be the most expensive option for a replacement fob however, it will also have the tools and software needed to program your car correctly. Many independent locksmiths offer a brand new car key fob for the lower cost.
Before you decide to purchase a new key fob, it is recommended to consider resetting your current device. The owner's manual should outline the correct procedure for reset. This is usually a series button presses which restores the factory settings.
It is also recommended to check the owner's manual and warranty information to see whether you can obtain an additional key fob. If your car is still under warranty or you have a car insurance policy or auto club membership with bumper-to-bumper insurance, you might be able to receive some reimbursement for the cost of a new fob.
Finding the right where to purchase the fob you need can be difficult. If you have a relatively new car and want the security with knowing that your keys fobs are in good working order, you may prefer going to the dealership to get this service. If you're looking for a more affordable alternative, it is possible to find a locksmith who will offer the same service at a lower price.
A locksmith professional is a great option if you're not comfortable doing this kind of work. They are equipped and trained to repair or replace key fobs for cars of all types, and can do so quickly. A locksmith can also visit your house or office which is a great option for a lot of people. They can even cut and program keys on the spot when you've lost keys, which is great for those who don't like to leave their cars unattended.