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Car Key Fob Repairs

Key fobs today can do much more than just unlock and start vehicles. This added complexity can result in costly repairs in the event that it malfunctions.

It's important to know that most fobs are powered by flat watch-style batteries that can be replaced at home. You might find that a simple reset can allow your fob to function again.

Battery Replacement

A dead battery is the main cause of the fob's key not working. It's a simple fix, and it's worth a try 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 your owner's manual (or in the event that you don't have one, YouTube is full of videos from people explaining how to do it) for specific instructions on opening and replacing the battery in your particular type of fob.

You'll need to gently pull off the sides of many fobs to reach the battery. You'll need a small, flat-bladed screwdriver, or a different tool with a blade that is thin. It may be helpful to look for a notch along the lower edge of the fob that you can use to wedge your tool between. You may also want to be on the lookout for small pieces that may be loosened while working.

Insert the new battery the same way as you removed the previous one. The positive (+) side should face the buttons and the reverse (-) the marks on the compartment for the battery.

Push a button to test the fob. If it doesn't work, there could be a problem in your car that needs to be repaired or replaced by a professional.

Some key fobs are difficult to open and their contacts may be brittle and easily damaged. In these instances the best choice is to talk to a expert or a dealer. When replacing a battery, be gentle and follow the owner's instructions. You might be able to find the same battery at a big-box retailer or discounter, but make sure to check the owner's manual to ensure it is compatible with your vehicle.

Replacing the Internal Key

To protect against theft, the majority of key fobs have an electronic key inside. If the battery of the fob fails, it leaves an internal key blank which can open doors and trunks (and in some cases, even start certain cars). A majority of people do not realize that they can save a trip to a dealership by recharging the fob batteries. The flat watch-style battery is used in most modern fobs. These batteries are easily located at hardware and auto parts stores. Using the correct type of battery is essential, however. The wrong type can damage the circuitry and cause the fob to fail much earlier.

If the problem continues to persist even after you have replaced the battery, it may be a sign that something else is going on in your vehicle. If you have an owner's manual 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 a shop independent that specializes in vehicle-security systems and key fob programming.

Fobs can also malfunction because of faulty transmitter receivers. They are usually found near the steering wheel or in the dashboard. They transmit signals to allow you to unlock your vehicle and start it using the fob. If you notice that you're being required to get closer and closer to your car in order to make it work, there's a high chance the transmitter is failing.

It may be necessary for a professional to open the case of the fob to replace the transmitter. A simple screwdriver can usually do the job however some fobs come with complicated release mechanisms that require a specific tool or equipment that is available only at a dealer. It's a good idea to have a certified mechanic handle this job to ensure you don't accidentally break the fob or cause injury to yourself.

Reprogramming the Key

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

You can also reprogram your key fob by yourself if you follow a few basic steps. The procedure may differ for different vehicles, so it is recommended to consult your owner's guide and study the specific model of your vehicle. For example one key fob could require that the ignition be switched on while reprogramming the key. A key fob might require the key to be inserted multiple times.

The procedure is simple. First, make sure the new 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. Then, place the old key back in the ignition and switch it to the ON position, but don't start the engine. Then, press the lock button on the fob, while looking at the transmission receiver, which is typically located in the front of the car above the mirror. Within a brief time, the key will indicate to the vehicle that it's being programmed by turning off the doors' locks or generating a chime. This is a difficult procedure, so pay attention to timing and don't over-press the button.

If the key fob still isn't working Try reprogramming it using new batteries. If the issue is still there, you might want to check with your car key immobiliser repair dealer or locksmith. A professional locksmith will have the tools and equipment required to reprogram your car fob, or even create a brand new one if needed.

Genesky says that he can program newer fobs ranging from $200 and $250, depending on the model of vehicle. However, he's had the need to turn away customers with European models because he doesn't have the expensive equipment required. Luckily, the majority of aftermarket fobs can be programmable however it's recommended to consult a car dealer first to find out what their price is.

A New Fob

If the key fob you have cannot be fixed, you could require another one. Based on the model and make, an auto locksmith or a dealership may be able help. 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 programme your vehicle properly. Numerous locksmiths who are independent offer a new car key fob for a much lower price.

Before you rush to get a new key fob, it is a good idea to try resetting your current one. Your owner's manual should outline the proper procedure for reset, which is usually just the pushing of a button that restores it to factory programming.

You should also check the owner's guide and warranty information to see if you can get a replacement key fob. If your vehicle is under warranty, or you have a car insurance policy or auto club membership that includes bumper-to-bumper protection, you may be eligible to receive a reimbursement for the cost of an entirely new fob.

Finding the right location to purchase a fob can be a challenge. If you have a relatively new car and would like the peace of mind that comes with knowing that your keys fobs are in good condition, you might prefer going to the dealership to get this service. If you're looking for a cheaper alternative, it is possible to find a locksmith who can provide the same service for Car Key Fob Repairs less cost.

A locksmith who is professional is a great option if you're not comfortable doing this type of work. They are trained and equipped to reprogram or replace most types of car key fobs, and they can often complete the task quickly. In addition, a locksmith will often visit your home or office to complete the task, which can be very convenient for some people. They can even cut and program keys on-site if you have lost them, which is ideal for those who do not want to leave their cars in the dark.