Car Key Fob Repairs

Key fobs of today are more than just a way to unlock and start vehicles. However, that added complexity can cause expensive repair costs when one of them fails.

The good news is that most fobs are equipped with flat-watch-style batteries that are easy to replace at home. And you may find that a reset will bring it back to life.

Battery Replacement

A dead battery is the main cause of a key fob that isn't working. It's simple to repair and worth a try before you spend money on the replacement fob. You can pick up a new button cell battery at your local auto part retailer or hardware store if you have one. You can also refer to your owner's guide (or YouTube for videos explaining how to replace the battery) to find specific instructions on how to repair broken car key to remove and replace the battery inside your fob.

Most fobs come with two halves that snap togetherYou'll need to pull the sides apart to get to the battery. You'll usually need a small screwdriver or another tool equipped with a thin, flat blade. You can insert your tool into a notch on the bottom of the key fob. You might also want to keep an eye out for small pieces that could come loose while you work.

Install the new battery in the same way you removed the previous one. Make sure that the positive (+) side is facing up toward the buttons and that the negative (-) side of the battery is aligned correctly with the markings inside the battery compartment of your fob.

Check the fob to determine whether it functions by pressing a button. If it doesn't, you may have an issue with your vehicle that requires a professional to fix or replace.

Some key fobs are difficult to open and the contacts may be brittle and easily damaged. In these cases the best choice is to consult a car expert or a dealer. If you're in need of replacing the battery, make sure to be very gentle and adhere to the instructions that are specific to the owner's manual. You may be able to find a similar battery at a discounter or big-box retailer however, you'll need to consult your owner's manual to ensure that it's compatible with your vehicle.

Replace the internal key

To protect against theft, the majority of key fobs come with a mechanical key hidden inside. When the battery in the fob dies it will leave an internal key that is blank which can open doors and trunks (and in some cases, start certain vehicles). The majority of people do not realize that they can avoid a trip to a dealership by replacing the fob batteries. The flat watch-style batteries are used in the majority of modern fobs. They can be found at hardware stores and auto parts stores. It is essential to choose the correct type of battery. The wrong type can damage the circuitry and cause the fob's failure earlier.

If you replace the battery and discover that the issue persists it could be a sign that something else is happening in your vehicle. Check your owner's manual to determine if you have an option to reset the fob and restore the fob's factory-setup. If this doesn't help then you'll need to visit a dealer or an independent shop that specializes in vehicle security systems and fob programming.

Fobs can also malfunction because of faulty transmitter receivers. They are typically located on the dashboard or near the steering wheel, and transmit signals that allow you to unlock and start your car with the fob. You may need to get closer where to repair car key remote your car to enable it.

It might be required for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver is usually enough to work, however certain fobs require a special tool or a special piece of equipment which can only be found at a dealer. This is a job that must be handled by a qualified mechanic to ensure that the fob is not damaged and yourself.

Reprogramming the Key

Often a non-functional key fob simply needs a fresh battery. Since these batteries are inexpensive and readily available at pharmacies and home improvement stores, this is an excellent first step prior to investing in the purchase of a new car key fob.

Alternatively, you may be able to program the fob by following the steps. This process can vary between automobiles, so read the owner's manual and study the specific model of your vehicle. For instance the key fob might require that the ignition be turned on while reprogramming it. One key fob could require the key to be inserted multiple times.

The general procedure is very simple. First, ensure that the new battery is in place. Then, get in the driver's seat and close all doors EXCEPT for the driver's side door. This will ensure that the new key fob communicates with the vehicle properly. Place the old key in the ignition, turn it on however, do not start the engine. Next press the lock button on the fob, while aiming it at the transmission receiver, which is usually located on the front of the car above the mirror. Within a brief time the key will signal to the vehicle that it's being programmed by triggering the doors' locks or generating an emitted sound. This is a challenging procedure, so pay attention to timing and don't over-press the button.

If the key fob won't work after reprogramming it, try using a new battery. If the problem persists you might want to check with your local locksmith or dealer. A professional locksmith will have the tools and equipment necessary to re-program your car's fob, or create a new key if it's needed.

Genesky claims he is able to program newer fobs between $200 and $250, based on the vehicle. Genesky has been denied European models turned away because there isn't the equipment required. Fortunately, many aftermarket fobs can be programmed, but it's always recommended to consult the dealer of your choice first to find out what the cost is.

A New Fob

If your key fob is simply damaged beyond repair, you could need to get a new one. Depending on the make and model, an auto locksmith or dealership might be able to assist. The dealership is likely to be the most expensive option for a fob replacement however, they'll have the necessary tools and software to program your vehicle correctly. Many independent locksmiths provide a new car key fob for an affordable price.

Before you purchase an entirely new device, it is an excellent idea to try resetting your current one. The owner's manual will outline the proper reset procedure which is typically a series of button pushes that restores the factory settings.

You should also look over the owner's manual and warranty information to determine whether you are eligible for an alternative 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 insurance, you might be eligible to receive a reimbursement for the cost of an entirely new fob.

The process of getting a fob can be simple enough however finding the best location to do it 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 order, you may be better off visiting the dealership to get this service. If you are seeking a less expensive alternative, it's possible to find a locksmith that will provide the same service at less cost.

If you're not comfortable doing this type of work on your own, a professional locksmith may be a great choice. They are equipped and trained to change or reprogram key fobs for damaged cars of all types and can do it quickly. Locksmiths can also come to your office or home which is convenient for many people. They can cut keys and program them on the spot in case you've lost them. This is great for those who don't want to leave their car in the garage.