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15 Best Pinterest Boards Of All Time About Car Key Fob Repair
Car Key Fob Repairs

Today's key fobs do a lot more than unlock and start vehicles. This extra complexity can lead to expensive repair bills if it breaks.

The positive side is that many fobs are equipped with flat-watch-style batteries that are simple to replace at home. It is possible that a reset will make your device work again.

Battery Replacement

The most frequent reason why a key fob stops working is due to the battery being dead. This is easy to fix, and it's worth a try before you decide to spend money on a new fob. Simply drive your car to a local hardware or auto parts retailer that carries button cell batteries and pick up 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 from people who show you how to do it) for specific instructions for opening and replacing the battery on the specific type of fob you have.

Most fobs have two halves that snap together- you'll need to gently pull the sides apart to access the battery. You'll need a small, flat-bladed screwdriver, or another tool with a thin blade. It's a good idea to look for a groove along the lower edge of the fob that you can use to wedge your tool between. It is also advisable to look for small pieces that may come loose while you work.

Insert the new battery in the same way you removed the previous one. Make sure the positive (+) side is facing upwards towards the buttons, and that the negative (-) side of the battery is aligned correctly with the marks inside the battery compartment of your fob.

Test the fob to see whether it functions by pressing the button. If it doesn't, you may have a problem with your car that requires a professional to fix or replace.

Certain key fobs can be difficult to open and their contacts may be brittle and easily corrosion-prone. In these cases the best choice is to speak with a expert or a dealer. If you're looking to replace a battery, try to be very gentle and follow the specific instructions in the owner's manual. You might be able to find the same battery at a big-box store or discounter, but make sure you read the owner's manual to make sure it is compatible with your vehicle.

Replacing the Internal Key

The majority of key fobs have the physical key mechanical, but it's hidden inside the fob to keep it from being stolen. When the battery in the fob dies it leaves an internal key blank which can open doors and trunks (and in some cases, start certain cars). Most people aren't aware of this, but they can avoid from a trip to the dealer by simply replacing the fob's battery. The flat watch-style battery is used in the majority of modern fobs. They can be found in auto parts stores and hardware stores. The right kind of battery is crucial however. A bad battery can damage the electronic circuitry, causing the battery to fail earlier.

If you try replacing the battery and discover that the issue persists, it could be a sign something else is happening with your car. Go through the owner's manual to see if there's a reset procedure that will restore the fob to factory programming. If this doesn't work, you'll have visit a dealership or a shop independent that specializes in vehicle-security systems and key fob programming.

Fobs can also malfunction due to malfunctioning transmitter receivers. These are usually 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 car to be able to make it work, there's a great possibility that the transmitter is not working.

It could be required for a professional to access the case of the fob in order to replace the transmitter. A simple screwdriver is enough to get the job done however some fobs come with complicated release mechanisms that require a specialized tool or equipment that is available only at a dealer. This task should be done by a certified mechanic to avoid damaging the fob as well as yourself.

Reprogramming the Key


Often a non-functional key fob simply requires a new battery. These batteries are easily found in pharmacy and home improvement stores and are affordable. This is a great way to start before buying a new key fob.

You may also be able to re-program the fob by following a few basic steps. The process is different for different vehicles manufacturers, so it is important to consult your owner's manual and research the specifics of your model. For example one key fob could require that the ignition be on while reprogramming it. One key fob could require the key to be inserted multiple times.

The general process is simple. First, ensure that the new battery is securely in place. Close all doors except the driver's door. about his will ensure that the new key fob can communicate with the vehicle correctly. Put the old key in the ignition, then turn it on however, do not start the engine. Press the lock button while aiming the fob toward the transmission receiver. This is usually located on the left side, just above the mirror. The key will inform the vehicle within a brief amount of time that it is being programmed. This can be accomplished by turning off the door locks, or emitting an audible chime. This process can be tricky and it's crucial to be aware of the timing and don't over-press the key button.

If the key fob doesn't work after reprogramming it, try using a new battery. If the issue is still there, you may want to visit your local locksmith or dealer. A professional will have the tools and equipment to reprogram your car's fob or make the key if needed.

Genesky says he's able to program newer fobs for around $200-$250, depending on the model of vehicle. He's been denied European models turned away because they don't have the equipment required. Most aftermarket fobs can be programmed, but always check with your local dealer to find out the price.

Getting a New Fob

If your key fob is damaged beyond repair, you could require an entirely new one. Depending on the model and make, an auto locksmith or a dealership may be able help. The dealership is likely to be the most expensive alternative for replacing a fob, but they will also have all the required tools and software to program your vehicle correctly. Many independent locksmiths offer a new car key fob at an affordable price.

It is a good thing to attempt to reset the fob you have before you decide to buy another one. The owner's guide should explain the correct procedure for reset. It is typically the result of a series of button presses which restores the factory settings.

It's an excellent idea to read the owner's manual and warranty information before you decide which place to go for an replacement 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 protection, you may be able to receive some reimbursement for the cost of a new fob.

Finding a fob is simple enough however, finding the right location to get it done isn't easy. If you have a relatively new car and would like the security with knowing that your keys fobs are in good working order, you may be better off going to the dealership for this service. If you are seeking a less expensive alternative, it is possible to find a locksmith that will offer the same service for a lower price.

If you're not confident handling this type of work on your own, a professional locksmith can be a great choice. They are trained and equipped to repair or replace keys for cars of all kinds and can do it quickly. Additionally, locksmiths can often come to your workplace or home to complete the task which is useful for certain people. They can even cut and program keys on-site in case you've lost them, which is ideal for those who don't like to leave their vehicles unattended.

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