Key fobs today do much more than just unlock and start vehicles. However, that added complexity can add up to expensive repair costs if one of them breaks.
The good news is that the majority of fobs are equipped with flat-watch-style batteries that are simple to replace at home. You may even find that a reset can bring it back to life.
Battery Replacement
A dead battery is the most common reason for the fob's key not working. It's a simple repair and worth a try before you purchase the replacement fob. Simply take your car to an auto parts store or hardware retailer that stocks button cells and choose the replacement. You can also refer to the owner's manual (or, if 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 specific type of fob you have.
You'll have to gently pull off the sides of many fobs to reach the battery. You'll need a small, flat-bladed screwdriver, or another tool with a small blade. You can put your tool into a notch on the bottom of the key fob. You may also want to keep an eye out for small pieces that could be loosened while working.
When you have your new battery, insert it the same way that you removed the old one. The positive (+) side should face the buttons and the reverse (-) the markings on the battery compartment.
You can push a button to test the fob. If it doesn't, there could be a problem with your car that requires a specialist to fix or replace.
Certain key fobs require specific tools to open, and the contacts inside could be fragile and easily corroded. In these cases the best choice is to speak with a specialist or a dealer. When replacing a battery, be gentle and follow the owner's manual. You may be able find the same battery at a big-box retailer or discounter, however, make sure you read the owner's manual to ensure it is compatible with your vehicle.
Replace the internal key
To protect against theft, the majority of key fobs come with an internal mechanical key that is hidden within. When the battery in the fob dies it leaves an internal key blank that is able to unlock doors and trunks (and in some cases start certain vehicles). The majority of people don't realize that they can save a trip to a dealership by replacing the fob's batteries. The flat watch-style battery is found in most modern fobs. These batteries can be found at hardware stores and auto parts stores. It is essential to choose the right type of battery. A bad battery can cause damage to the circuitry, causing the fob to fail much earlier.
If the issue persists even after you have replaced the battery, it could be an indication that there is something else going on in your vehicle. If you have an owner's guide look for there is a reset option available to restore the fob's original programming. If this doesn't work, you'll need to visit a dealership or an independent shop that is specialized in vehicle security systems and fob programming.
Fobs may also fail due to malfunctioning transmitter receivers. These are usually built into the dashboard or close to the steering wheel, and they transmit signals that allow you to unlock and start your car with the fob. If you're required to move closer and closer to your car in order to make it work, there's a good chance that the transmitter isn't working.
A professional may need to open the case of the fob to replace the transmitter. A simple screwdriver will usually accomplish the task however some fobs come with complex release mechanisms that require a specific tool or specialized equipment that is available only at a dealer. This job should be performed by a certified mechanic to ensure that the fob is not damaged and yourself.
Reprogramming the Key
Most of the time, a key fob that isn't working simply needs a fresh battery. Because these batteries are cheap and easily available at pharmacies and home improvement stores, this is the ideal first step before buying a new car key fob.
Alternatively, you may be able to program the fob yourself by following some basic steps. This process varies between vehicle brands, so it's essential to refer to the owner's manual and research the specifics of your model. A key fob may require that the ignition be turned on while reprogramming. Another key might require the key to be removed and inserted repeatedly.
The general procedure is very easy. Make sure that the battery is securely in place. Close all doors except the driver's door. This will ensure that the new key fob can communicate with the vehicle properly. Place the old key in the ignition, then turn it on, but don't start the engine. Press the lock button while aiming the fob at the transmission receiver. This is usually located on the left side, just above the mirror. The key will signal to the vehicle within a short amount of time that it's being programmed. This can be accomplished by turning the door locks or by emitting an audible chime. This can be a tricky process, so pay close attention to the timing and avoid pressing too hard the button.
If the key fob does not work after reprogramming it, try replacing the batteries. If the issue isn't resolved then a visit to your dealer for your car or a locksmith is a good idea. A professional will have the tools and equipment necessary to re-program your car's fob or clone an entirely new key if needed.
Genesky claims he is able to program newer fobs between $200 and $250, depending on the model of vehicle. car key repair service 's been denied European models rejected due to the fact that he lacks the expensive equipment needed. Fortunately, many aftermarket fobs are programmable, but it's always best to talk to the dealer of your choice first to see the price.
Getting a New Fob
If your key fob is beyond repair, you might need to purchase an entirely new one. Depending on the make and model, a dealership or an auto locksmith might be able to assist. The dealership is likely to be the most expensive option for a replacement fob however, they'll have all the required tools and software to program your car correctly. For a more affordable solution, many independent locksmiths can provide you with an entirely new car key fob at a lower price.
It is a good thing to attempt to reset your current fob before you rush out to buy an entirely new one. The owner's manual should outline the correct procedure for reset. This is usually the result of a series of button presses that restores the factory programming.
You should also look over the owner's manual and warranty information to see whether you can obtain an additional key fob. If your car's warranty is still in effect or you have an auto club or insurance policy that covers bumper to bumper you could be eligible to receive a reimbursement for the cost of a replacement fob.
Finding the best where to purchase a fob can be a challenge. If you own a new car and would like the security with knowing that your keys fobs are in working condition, you may be better off visiting the dealership to get this service. If you're looking for a more affordable option it is possible to find a locksmith who is independent who can offer the same services for a significantly lower price.
If you aren't comfortable handling this type of work yourself, a professional locksmith can be a great choice. They are certified and equipped to repair or replace all kinds of car key fobs and often they can complete the task quickly. key fob repair is also able to visit your house or office which is a great option for a lot of people. They can even cut and program keys on-site if you have lost keys, which is ideal for those who prefer not to leave their vehicles unattended.
