Do You Think You're Suited For Car Key Fob Repair? Try This Quiz

Car Key Fob Repairs

Key fobs of today can do more than unlock and start vehicles. This added complexity can cause costly repair costs in the event that it malfunctions.

It's a good idea to know that the majority of fobs are powered by flat-watch-style batteries which can be replaced at home. You may even find that a reset will bring it back to life.

Battery Replacement

A dead battery is the main reason for the fob's key not working. This is easy to fix, and it's worth trying before you spend money on a new fob. Simply drive your car to an auto parts store or a hardware retailer that carries button cell batteries and purchase an alternative. You can also consult the owner's manual (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to open and replace the battery inside your fob.

You'll need to gently pry away the sides of the majority of fobs in order to access the battery. You'll need a small, flat-bladed screwdriver, or another tool with a thin blade. It may be helpful to look for a notch on the bottom of the fob which you can use to place your tool between. You might also want to look out for small pieces that might break loose as you work.

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

You can push a button to test the fob. If it doesn't work, there might be a problem with your car that needs to be repaired or replaced by a professional.

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

Replacing the Internal Key

Most key fobs contain the physical key mechanical however, it's hidden within the fob to prevent thieves. When the fob battery dies it will leave an internal key that is blank which can open doors and trunks (and in some cases, even start certain cars). Many people don't realize this however, they can save themselves a trip to the dealership by simply replacing the fob's battery. The majority of modern fobs utilize flat watch-style batteries that can be found at hardware stores and auto parts shops. Using the correct type of battery is essential, however. A bad battery can damage the electronic circuitry, causing the fob to fail faster.

If the problem persists even after you have replaced the battery, it may be an indication that there is something else going on with your vehicle. If you have an owner's guide and you're not sure, try to determine if a reset procedure is available to restore the fob's original programming. If this doesn't work, you'll need to go to a dealership or an independent shop that specializes in vehicle security systems and fob programming.

Fobs can also malfunction due to malfunctioning transmitter receivers. These are usually built into the dashboard or near the steering wheel, and transmit signals that allow you to unlock and start your car using the fob. It is possible that you will need to get closer to the car to make it work.

It could be necessary for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver can usually suffice, but certain fobs require a special tool or special equipment which can only be found at a dealership. This task must be handled by a qualified mechanic to avoid damaging the fob as well as yourself.

Reprogramming the Key

A key fob that is not working might just need an upgrade in battery. These batteries are readily available in both pharmacy and home improvement stores and are inexpensive. This is a great 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 read the owner's manual and study the specific model of your vehicle. For example, one key fob may require the ignition to be switched on while reprogramming the key. Another may require the key to be removed and inserted repeatedly.

The procedure is easy. Make sure that the battery is securely in place. Close all doors except the driver's door. This will ensure the new key is communicating with the vehicle properly. After that, put the old key back into the ignition and switch it to the ON position, but do not start the engine. Press the lock button while aiming the fob towards the receiver for transmission. This is typically located on the front, above the mirror. Within a brief time the key will announce to the vehicle that it's programmed by cycling the doors' locks or generating a chime. This process can be tricky so it's essential to pay attention to the timing and not to over-press the key button.

If the key fob does not work after reprogramming, try replacing the batteries. If the problem persists you might want to check with your local dealer or locksmith. A professional will have all the tools and equipment needed to reprogram the car fob, or even create a brand new one if needed.

Genesky says that he can program newer fobs between $200 and $250, depending on the vehicle. He's had European models rejected because there isn't the equipment required. A majority of the aftermarket fobs are programmed, but always consult your local dealer to determine the price.

How to get a new fob

If your key fob is beyond repair car remote control key, you may require an alternative. Depending on your vehicle's make and model, an auto locksmith or repair car remote control Key dealership may be able help. The dealership will likely be the most expensive option for a fob replacement however, they'll have the necessary tools and software needed to program your car correctly. Many locksmiths in independent shops offer a brand new car key fob at the lower cost.

Before you purchase a new key fob it's recommended to consider resetting your current one. The owner's manual should outline the correct reset procedure. This is usually an orderly press that reset the factory program.

You should also look over the owner's manual and warranty information to see whether you are eligible for a replacement fob for your key. If your car is under warranty or you have a car-insurance policy or auto club membership that includes bumper-to-bumper insurance, you might be eligible for reimbursement for the cost of an entirely new fob.

Finding a fob is simple enough, but finding the right place to have it done can be tricky. You may want to visit the dealer for this service if you have a newer car and want peace of mind knowing that your key fobs are functioning correctly. If you're looking for a more affordable alternative, it is possible to find a locksmith that can provide the same service at less cost.

If you're not confident handling this kind of work yourself A professional locksmith could be a great option. They're trained and equipped to change or reprogram car key fobs of all types, and can do so quickly. Additionally, locksmiths will often visit your home or office to do the job which is practical for some. They can also cut and program keys repair on site if you've lost them. This is ideal for those who don't want to leave their vehicle without a key.