Car Key Fob Repairs
Today's key fobs do a lot more than unlock and start cars. However, the added complexity could cause high repair bills in the event that one of them malfunctions.
It's a good idea to know that the majority of fobs are powered by flat watch-style batteries, that can be replaced at home. You may even find that a reset can get yours working again.
Battery Replacement
A dead battery is the main reason for a key fob that isn't working. It's easy to repair and worth a try before you invest in an alternative fob. You can buy a new button cell battery at a local auto part retailer or hardware store If you own one. You can also consult your owner's guide (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to remove and replace the battery inside your fob.
The majority of fobs have two halves that snap together -You'll need to pull the sides apart to get to the battery. You'll typically need a small screwdriver or some other tool that has a flat, thin blade. You can wedge your tool into a notch at the bottom of the key fob. It is also advisable to look for tiny pieces that could break loose as you work.
Insert the new battery the same manner as you removed the previous one. The positive (+) side should be facing the buttons and the negative (-) the markings on the battery compartment.
Test the fob to see if it works by pushing a button. If it doesn't work, there might be a problem with your vehicle that needs to be fixed or replaced by a professional.
Certain key fobs can be difficult to open and the contacts may be brittle and easily corrosion-prone. In auto key repair , a car specialist or a dealer could be the best option. If you need to replace the battery, make sure to be gentle and follow the instructions specifically in your owner's manual. You may be able to find a similar battery at a discounter or a big-box retailer, but you'll need to check the owner's manual to make sure that it's the right one for your vehicle.
Replacing the Internal Key
To guard against theft, many key fobs come with an electronic key inside. When the battery in the fob fails, a blank key is left behind and can be used to open trunks and doors. In some instances, this key can even start certain cars. Most people do not realize that they can avoid a trip to the dealership by recharging the fob batteries. The flat watch-style battery is found in the majority of modern fobs. These batteries can be located at hardware stores and auto parts stores. The right kind of battery is important, however. A bad battery can damage the electronic circuitry, causing the battery to fail earlier.
If the problem continues to persist after replacing the battery, it may be a sign that there is something else going on in your vehicle. Check your owner's manual to see if there's a reset procedure that will restore the fob to factory programming. If this isn't working, you'll need go to a dealer or independent shop that specializes security systems for vehicles and key fob programming.
Fobs can also fail because of faulty transmitter receivers. These are usually built into the dashboard or near the steering wheel, and they transmit signals that allow you to unlock and start your car using the fob. You may need to get closer to the car in order to get it to work.
A professional may need to open the case of the fob to replace the transmitter. A simple screwdriver is usually enough to suffice, but certain fobs require a special tool or a special piece of equipment which can only be found at a dealer. It's best to have a certified mechanic perform this task so you don't accidentally break the fob or cause injury to yourself.
Reprogramming the Key
A key fob that is not working could just require an upgrade in battery. Since these batteries are inexpensive and readily available at pharmacies and home improvement stores, this is an excellent first step prior to buying the purchase of a new car key fob.
You may also be able to re-program the fob on your own by following a few basic steps. This process can vary between vehicles, so it is recommended to consult your owner's guide and research the model you have. For example one key fob could require that the ignition be switched on while reprogramming the key. Another key might require the key to be removed and inserted several times.
The basic procedure is easy. Make sure the battery is securely in place. Close all doors except the driver's door. This will ensure that the new key fob communicates with the vehicle correctly. Place the old key in the ignition and turn it on but don't start the engine. Next, press the lock button on the fob, while looking at the transmission receiver, which is usually located on the front of the vehicle above the mirror. The key will signal to the vehicle within a short period of time that it's being programmed. This can be accomplished by turning off the door locks or by emitting an audible chime. This is a challenging process, so pay close attention to the timing and avoid pressing too hard the button.
If the key fob still isn't working try reprogramming it using new batteries. If the issue isn't resolved, a visit to the dealer of your vehicle or a locksmith should be considered. A professional will have all the tools and equipment to reprogram your car's fob or create a new one, if required.
Genesky says he's able to program newer fobs for $200-$250, depending on the model of vehicle. However, he's had the need to refuse customers with European models because he doesn't have the expensive equipment they require. A majority of the aftermarket fobs are programmed, but you should always inquire with your local car dealer to determine the cost.
Finding a New Fob
If your key fob is beyond repair, you might need to purchase an entirely new one. Based on the make and model, a dealership or an auto locksmith may be able to assist. The dealership is likely to be the most expensive choice to replace your fob, but it also has the tools and software needed to program your car properly. Numerous locksmiths who are independent offer a brand new car key fob for an affordable price.
Before you rush to get a new fob it's recommended to consider 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 reset the original programming.

It's recommended to review your owner's manual and warranty information prior to deciding which place to go for the replacement of your key fob. If your car is still under warranty, or you have a car-insurance policy or auto club membership with bumper-to-bumper coverage, you may be able to receive some reimbursement for the cost of an entirely new fob.
The process of getting a fob can be simple enough however finding the best place to have it done isn't easy. You may want to visit the dealer to get this service if you are driving a brand new car and want peace of mind knowing that your keyfobs are working properly. If you're looking for a cheaper alternative, it is possible to find a locksmith that will provide the same service at less cost.
If you aren't comfortable handling this kind of work yourself, a professional locksmith may be a good option. They are certified and equipped to replace or reprogram most types of car key fobs and often they can complete the task quickly. Additionally, locksmiths can often come to your workplace or home to do the job which is useful for certain people. They can even cut and program keys on the spot in case you've lost keys, which is great for those who don't like to leave their cars unattended.