Car Key Fob Repair: 11 Things That You're Failing To Do

· 6 min read
Car Key Fob Repair: 11 Things That You're Failing To Do

Car Key Fob Repairs

Key fobs today do a lot more than unlock and start vehicles. However, the added complexity could cause expensive repair costs in the event that one of them malfunctions.

The good news is that most fobs are equipped with flat-watch-style batteries that are simple to replace at home. You may even find that a reset can get yours working again.

Battery Replacement

The most common reason a key fob stops working is because of a dead battery. This is a simple repair, and is worth trying before you spend money on a new fob. Simply drive your car to a local auto parts store or a hardware retailer that sells button cell batteries and purchase the replacement. You can also refer to the owner's manual (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to remove and replace the battery in your fob.

You'll need to gently pry away the sides of the majority of fobs to reach the battery. You'll usually need a small screwdriver or another tool with a thin, flat blade. You can put your tool into a notch on the bottom of the key fob. It is also advisable to keep an eye out for tiny pieces that may come loose while you work.

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

Check the fob to determine whether it is working by pressing the button. If it doesn't, there could be a problem with your car that requires a professional to fix or replace.

Some key fobs require special tools to open, and the contacts inside can be fragile and susceptible to corroding. In these cases, the best option is to consult a car specialist or a dealer. When replacing a battery be gentle and follow your owner's guide. You might be able to find a battery similar in a big-box store or discounter, but be sure you check your owner's guide to ensure that it's compatible with your car.

Replace the internal key

Most key fobs include an actual mechanical key that is hidden within the fob to keep it from being stolen. If the battery inside a fob dies, a blank key is left behind, which can be used to unlock doors and trunks. In certain cases the key could even start certain vehicles. A majority of people do not realize that they can save a trip to a dealership by replacing the fob batteries. Most modern fobs use flat watch-style batteries that are readily available at hardware stores and auto parts shops. It is crucial to choose the correct kind of battery. A bad battery can damage the electronic circuitry, causing the battery to fail faster.

If you try replacing the battery and find the issue is still there it could be a sign something else is happening with your car. Review the owner's manual of your vehicle to determine if you have a reset procedure that will bring the fob back to factory-setup. If this doesn't work, you'll have go to a dealer or independent shop that specializes security systems for vehicles and key fob programming.

Fobs can also fail due to malfunctioning transmitter receivers. These are usually built into the dashboard or near the steering wheel, and they transmit signals that allow you to open and start your car using the fob. You may have to move closer to the car to make it work.

It may be required for a professional to remove the case of the fob in order to replace the transmitter. A simple screwdriver is enough to do the job, but some fobs have complicated release mechanisms that require a specialized tool or equipment that is available only at a dealer. It's a good idea to have a certified mechanic do this job so that you don't damage the fob or injure yourself.

Reprogramming the Key

A key fob that is not working could just require an upgrade in battery. These batteries are readily available in both pharmacy and home improvement stores and are affordable. This is a great option to begin before purchasing the new key fob.

You may also be able to program the fob by following a few basic steps. This procedure can differ between vehicles, so you should read the owner's manual and research your specific model. For instance one key fob could require the ignition to be turned on while reprogramming it. Another key might require the key to be removed and inserted multiple times.



The procedure is simple. Make sure that the battery is securely in place. Close all doors except the driver's door. This will ensure the new fob is communicating with the vehicle properly. Put the old key in the ignition and turn it on however, do not 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. The key will signal to the vehicle within a short amount of time that it's being programmed. This can be accomplished by cycling 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 still doesn't work Try reprogramming it with fresh batteries. If the issue isn't resolved you should visit the dealer of your vehicle or a locksmith is a good idea. A professional locksmith will have the tools and programming equipment to reprogram your car's fob or make an entirely new key if required.

key repair service  says he's able to program newer fobs that range between $200 and $250, depending on the model of vehicle. He's experienced European models rejected because there isn't the equipment required. Most aftermarket fobs can be programmed, but always check with your local dealer to determine the price.

Getting a New Fob

If your key fob is beyond repair, you might need to get an entirely new one. Depending on the make and model, the dealership or an auto locksmith may be able to assist. The dealership is likely to be the most expensive option for a replacement fob However, they'll have all of the necessary tools and software to programme your vehicle properly. If you're looking for a cheaper solution, a variety of locksmiths can provide you with new car keys for a much more reasonable price.

Before you rush to get an entirely new device, it is recommended to consider resetting your current device. The owner's manual will outline the correct procedure for reset which is typically a series of button pushes that restores the factory settings.

It is also a good idea to check the owner's manual and warranty information before you decide where to go for a key fob replacement. If your car's warranty in good standing or you have an auto club or insurance policy that covers bumper to bumper you could qualify for a reimbursement on the cost of a replacement fob.

Getting a fob is easy enough however, finding the right location to get it done can be a challenge. It is possible to go to the dealer for this service if have a newer vehicle and you are looking to feel secure knowing that your key fobs work correctly. If you are seeking a less expensive alternative, it is possible to find a locksmith who can provide the same service at a lower price.

If you're not comfortable doing this type of work yourself A professional locksmith could be a good option. They are certified and equipped to reprogram or replace most types of car key fobs and often they can complete the task quickly. Locksmiths can also visit your house or office which is a great option for many. They can cut keys and program them on the spot if you've lost keys. This is great for those who do not want to leave their vehicle without a key.