Car Key Fob Repairs
Key fobs today can do much more than simply unlock and start vehicles. This added complexity could lead to expensive repair bills when it fails.
The positive side is that many fobs are equipped with flat-watch-style batteries that are easy to replace at home. You may even find that a reset will make your device work again.
Battery Replacement
The most common reason a key fob stops working is due to a dead battery. It's a simple repair, and is worth trying before you go spending money on a new key fob. You can pick up an additional button cell battery at a local auto part retailer or hardware store in the event that you already have one. You can also consult the owner's manual (or YouTube for videos explaining how to replace the battery) for specific instructions on how to remove and replace the battery in your fob.
The majority of fobs have two halves that snap togetheryou'll have to gently pull the sides apart in order to access the battery. You'll usually need a small screwdriver or another tool equipped with a thin, flat blade. You can put your tool into a notch at the bottom of the key fob. It is also advisable to watch for tiny pieces that might break loose while working.
Install the new battery in the same manner as you removed the old one. The positive (+) side should be facing the buttons and the reverse (-) the marks on the compartment for the battery.
Test the fob to see whether it is working by pressing a button. If it fails, it may be a problem with your car that needs to be fixed or replaced by a specialist.
Some key fobs require special tools to open and close them, and the contacts inside may be delicate and susceptible to corroding. In these instances the best choice is to consult a car specialist or dealer. If you're looking to replace a battery, try to be gentle and follow the instructions specifically in your owner's manual. You may be able to locate a comparable battery at a discounter store or a big-box retailer however, you'll need to check the owner's manual to make sure that it matches your car.
Replace the internal key
To prevent theft, most key fobs are equipped with an electronic key inside. If the battery inside the fob goes out it will leave a blank key left behind and can be used to unlock trunks and doors. In certain cases, this key can even start certain cars. Most people aren't aware of this however they could save having to go to the dealership by simply replacing the fob battery. Most modern fobs have flat-watch-style batteries which can be found at auto parts stores and hardware shops. The right kind of battery is essential, however. A bad battery can damage the electronic circuitry and cause the fob to fail much earlier.
If you try replacing the battery, and the issue is still there, it could be a sign that something else is going on in your vehicle. If you have an owner's manual look for you can use a reset procedure to restore the fob's factory programming. If this isn't working, you'll need to visit a dealership or a shop independent that specializes in vehicle-security systems and key fob programming.
Fobs can also fail because of faulty transmitter receivers. These are usually built into the dashboard or next to the steering wheel, and transmit signals that allow you to unlock and start your car with the fob. You may have to move closer to the car in order to get it to work.
A professional might need to open the case of the fob to replace the transmitter. A simple screwdriver can usually work, however certain fobs require a specific tool or a special piece of equipment that can only be purchased at a dealer. It's best to have a qualified mechanic handle this job to ensure you don't damage the fob or injure yourself.
Reprogramming key fob repair -functional key fob just requires a new battery. These batteries are readily available in pharmacy and home improvement stores and are inexpensive. This is a good way to start before buying the new key fob.
You can also change the programming of your key fob by yourself If you follow the steps below. The procedure may differ for different automobiles, so refer to the owner's manual and research your specific model. For example the key fob might require that the ignition be switched on while reprogramming the key. One key fob could require the key to be inserted several times.
The general procedure is very simple. Make sure that the battery is securely in place. Close all doors, with the exception of the driver's door. This will ensure that the new key is communicating with the vehicle properly. After that, put the old key back into the ignition and turn it on to the ON position, but do not start the engine. Next, press the lock button on the fob, while looking at the transmission receiver, which is usually located on the front of the car above the mirror. The key will signal to the vehicle within a short period of time that it's being programmed. This can be done by turning the door locks or emitting an audible chime. This can be a tricky process, so pay attention to timing and don't over-press the button.
If the key fob still does not work try reprogramming it with new batteries. If the problem persists you should visit your dealer for your car or a locksmith is a good idea. A professional will have the tools and equipment to reprogram your car's fob or clone an entirely new key if required.
Genesky says he's able to program newer fobs at around $200 to $250, based on the vehicle. Genesky has been denied European models turned away because there isn't the equipment needed. Most aftermarket fobs can be programmed, but always consult your local car dealer to determine the price.
Getting a New Fob
If your key fob is damaged beyond repair, you could need to purchase an entirely new one. Depending on the brand and model, the dealership or an auto locksmith might be able to assist. The dealership is likely to be the most expensive choice to replace your fob, but it will also have the tools and software necessary to program your car properly. If you're looking for a cheaper solution, a variety of locksmiths can offer you an entirely new car key fob for a more affordable cost.
It's a good idea to attempt to reset the fob you have before you rush out to buy an entirely new one. The owner's manual should outline the correct reset procedure. This is usually an orderly press that restores the factory programming.
It is also recommended to check the owner's guide and warranty information to see whether you can obtain a replacement fob for your key. If your vehicle's warranty is in good standing 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 place to get a fob can be a challenge. You may want to go to the dealer to get this service if you are driving a brand new car and you are looking to feel secure knowing that your key fobs work correctly. If you're looking for a cheaper alternative, it's possible to find a locksmith who will offer the same service at an affordable cost.
If you aren't comfortable handling this type of work yourself A professional locksmith could be a good option. They're trained and equipped to change or reprogram keys for cars of all types and do it quickly. Additionally, locksmiths will often visit your office or home to do the job, which can be very convenient for some people. They can even cut and program keys on-site when you've lost keys, which is ideal for those who prefer not to leave their vehicles unattended.