Car Key Fob Repairs
Key fobs today do a lot more than unlock and start cars. But that extra complexity can add up to high repair bills when one of them fails.
The positive side is that many fobs use flat watch-style batteries that are easy to replace at home. It is possible that a simple reset can bring your fob back to life.
Battery Replacement
A dead battery is the main reason for the fob's key not working. It's a simple repair, and is worth a try before you spend money on a new fob. You can purchase a new button cell battery at your local auto parts retailer or hardware store in the event that you already have one. You can also refer to your owner's manual (or in the case that you don't have one, YouTube is full of videos from people who show you how to do it) for specific instructions for opening and replacing the battery on the particular type of fob.
You'll need to gently pry off the sides of many fobs in order to access the battery. It's usually a screwdriver or a different tool equipped with a thin, flat blade. You can put your tool into a slot on the bottom of the key fob. You might also want to watch out for tiny pieces that might break loose as you work.
When you have your new battery, insert it in the same manner that you removed the old one. Make sure that the positive (+) side is facing up 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 functions by pressing a button. If it fails, it could be a problem in your vehicle that requires to be repaired or replaced by a professional.
Certain key fobs are difficult to open, and the contacts may be brittle and easily corrosion-prone. In these cases the best solution is to speak with a specialist or a dealer. When replacing a battery, be gentle and follow the owner's manual. You may be able to locate the same battery in a big-box store or discounter, but make sure you check your owner's guide to ensure it is compatible with your vehicle.
Replace the internal key
To guard against theft, many key fobs are equipped with an internal mechanical key that is hidden within. When the battery in the fob dies it leaves an internal key blank that can unlock trunks and doors (and in some cases start certain cars). Most people don't realize that they can save a trip to a dealership by replacing the fob's batteries. Most modern fobs have flat watch-style batteries that can be found in auto parts stores and hardware shops. The right kind of battery is essential however. A wrong battery can harm the circuitry and lead to the fob's failure earlier.
If the issue persists even after you have replaced the battery, it may be a sign that there is something else going on in your vehicle. If you have an owner's manual look for a reset procedure is available to restore the fob's factory programming. If this doesn't help, you'll need to go to a dealership or an independent shop that specializes in vehicle security systems and fob programming.
Fobs may also fail because of faulty transmitter receivers. These are usually located close to the steering wheel, or on the dashboard. They transmit signals to enable you to unlock your car and begin 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 good chance that the transmitter isn't working.
A professional may need to open the fob's case to replace the transmitter. A simple screwdriver can usually work, however some fobs require a specialized tool or equipment that can only be found at a dealership. This is how to repair car key fob a job that must be handled by a certified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that is not functioning just requires a new battery. Because these batteries are cheap and readily available at pharmacies and home improvement stores, it's the ideal first step before buying an entirely new car key fob.
You can also change the programming of your key fob yourself by following some basic steps. The procedure varies for different vehicle brands, so it's essential to refer to the owner's manual and research the specifics of your model. For instance one key fob could require the ignition to be turned on while reprogramming it. A key fob might require the key to be inserted several times.
The basic procedure is simple. First, make sure the new battery is in place. Close all doors, except the driver's door. This will ensure that the new key fob communicates with the vehicle correctly. Then, place the old key back in the ignition and switch it to the ON position, but don't start the engine. Press the lock button while aiming the fob towards the receiver of the transmission. This is typically located on the left side, just above the mirror. In a short period of time the key will announce to the vehicle that it's being programmed by turning off the doors' locks or emitting an emitted sound. This can be a difficult process and it's crucial to be aware of the timing and to not over-press the key button.
If the key fob doesn't function after reprogramming, you can try replacing the batteries. If the problem persists you should visit your car dealer or a locksmith should be considered. A professional locksmith will have the tools and programming equipment to reprogram your car's fob or clone the key if needed.
Genesky says he can usually program newer fobs for $200-$250, based on the model of vehicle. But he's had to turn down customers who have European models due to the fact that they don't have the costly equipment required. Fortunately, many aftermarket fobs can be programmed however it's recommended to consult a car dealer first to determine what their price is.
How do I get a brand new fob
If your key fob is beyond repair, you might need to get an alternative. Depending on the brand and model, the dealership or an auto locksmith may be able to help. The dealership is likely to be the most expensive choice for a replacement fob, however, it will also have the tools and software needed to program your car correctly. Many independent locksmiths offer a brand new car key fob for a much lower price.
Before you decide to purchase a new fob, it is a good idea to try resetting your current one. The owner's guide should explain the correct reset procedure. It is typically a series button presses that reset the factory program.
It's an excellent idea to check your owner's manual and warranty information prior to deciding the best place to get an replacement fob for your key. If your vehicle's warranty is in good standing or you have an auto club or insurance policy that covers bumper-to-bumper, you may qualify for a reimbursement on the cost of a replacement fob.
Finding the best place to get a fob can be difficult. You might want to go to the dealer for this service if have a newer car and you are looking to feel secure knowing that your key fobs are functioning properly. However, if you want a more affordable option, it is often possible to find a locksmith independent who can provide the same service at a much lower cost.
A professional locksmith is a good option for those who aren't comfortable with this kind of work. They are certified and equipped to reprogram or replace most types of car key fobs, and often, they can do it quickly. Additionally, locksmiths can often come to your home or office to complete the task which can be extremely convenient for some people. They can even cut and program keys on-site when you've lost keys, which is ideal for those who don't like to leave their vehicles unattended.