Car Key Fob Repairs
Key fobs today do a lot more than just unlock and start vehicles. But that extra complexity can cause high repair bills when one of them fails.
It's good to know that most fobs are powered by flat-watch-style batteries that can be replaced at home. You may find that a simple reset is enough to bring your fob back to life.
Battery Replacement
A dead battery is the most frequent reason for a key fob not working. This is easy to fix, and it's worth a try before you decide to spend money on a new key fob. Simply drive your car to a local auto parts store or a hardware retailer that carries button cells and choose the replacement. You can also consult the owner's manual (or YouTube for videos explaining how to replace the battery) for specific instructions on how to replace and open the battery in your fob.
You'll need to gently pull off the sides of many fobs to reach the battery. You'll need a small, flat-bladed screwdriver, or another tool with a small blade. It might help to look for a notch along the bottom of the fob that you can use to place your tool between. It is also advisable to look for small pieces that could be loosened while working.
Insert the new battery the same manner as you removed the previous one. Make sure that the positive (+) side is facing up towards the buttons and that the negative (-) side of the battery is aligned correctly with the markings inside the battery compartment of your fob.
Push a button to test the fob. If it doesn't, you might have an issue with your vehicle that requires a professional to repair or replace.
Certain key fobs can be difficult to open and the contacts could be fragile and easily corroded. In these cases, a car specialist or a dealer could be the best choice. If you're in need of replacing batteries, you should be very gentle and adhere to the specific instructions in your owner's manual. You may be able to locate an identical battery at a big-box retailer or discounter, but be sure you check the owner's manual to ensure that it's compatible with your vehicle.
Replace the internal key
Most key fobs include the physical key mechanical, but it's hidden inside the fob to keep it from being stolen. When the fob battery dies it leaves an internal key blank that is able to unlock doors and trunks (and in some cases, even start certain vehicles). Many people don't realize this, but they can save a trip to the dealership by simply replacing the fob's battery. The flat watch-style battery is found in most modern fobs. These batteries are easily located at hardware and auto parts stores. It is important to use the correct type of battery. The wrong kind can damage the electronic circuitry, causing the fob to fail sooner.
If car key repair shop persists after replacing the battery, it may be a sign that something else is going on with your vehicle. If you have an owner's guide and you're not sure, try to determine if you can use a reset procedure to restore the fob's original programming. If this isn't working, you'll need visit a dealership or independent shop that specializes vehicle-security systems and key fob programming.
Fobs can also malfunction due to malfunctioning transmitter receivers. They are typically located on the dashboard or next to the steering wheel, and transmit signals that allow you to open and start your car with the fob. If you're being required to get closer and closer to your car in order to make it work, there's a high possibility that the transmitter is not working.
A professional may need to open the fob's case to replace the transmitter. A simple screwdriver will usually do the job however, some fobs have complex release mechanisms that require a specialized tool or specialized equipment that is available only at a dealer. This job should be performed by a certified mechanic in order to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that is not working may simply need an upgrade in battery. Because they are cheap and readily available in pharmacies and home improvement stores, this is the ideal first step before purchasing an entirely new car key fob.
You can also change the programming of your key fob yourself by following a few basic steps. The procedure may differ for different automobiles, so refer to the owner's manual and study the specific model of your vehicle. For example, one key fob may require that the ignition be turned on while reprogramming it. One key fob could require the key to be inserted several times.
The basic procedure is simple. First, make sure that the new battery is firmly in place. Close all doors except the driver's door. This will ensure the new key is communicating with the vehicle correctly. Then, 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 at the receiver of the transmission. This is usually located on the front above the mirror. In a short period of time the key will signal to the vehicle that it's being programmed by triggering the doors' locks or generating a chime. This can be a tricky process, so pay 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 is still there, you might want to visit your car dealer or locksmith. A professional will have all the tools and equipment required to reprogram your car fob or design a new one, if required.
Genesky says he's able to program newer fobs for $200-$250, depending on the model of vehicle. Genesky has had European models turned away because they don't have the equipment needed. A majority of the aftermarket fobs are programmed, but always inquire with your local dealer to determine the cost.
How to get a new fob
If your key fob can't be repaired, you might need to buy an entirely new one. Based on how to repair car key fob and model, the dealership or an auto locksmith might be able to help. The dealership is likely to be the most expensive option for a replacement fob However, they'll have the necessary tools and software to program your car correctly. For a more affordable solution, a variety of locksmiths will be able to provide you with new car keys for a more affordable price.
It's a good idea to try to reset your current fob before you make the decision to purchase a new one. The owner's manual should provide the correct method of reset. This is usually the result of a series of button presses that reset the factory program.
You should also look over your owner's guide and warranty information to determine if you can get an additional key fob. If your car's warranty in good standing or you have an auto club or car insurance policy that covers bumper-to-bumper you could be eligible for a reimbursement of the cost of a replacement fob.
Finding the best location to purchase a fob can be difficult. You might want to visit the dealer for this service if you have a newer vehicle and are looking to feel secure knowing that your key fobs work properly. If you are looking for a cheaper alternative, it's possible to find a locksmith who will offer the same service at a lower price.
A locksmith who is professional is a great option for those who aren't comfortable with this type of work. They are skilled and equipped to repair or replace most types of car key fobs and often, they can complete the task quickly. In addition, a locksmith will often visit your home or office to do the job which can be extremely convenient for some people. They can cut and program keys on the spot in case you've lost them. This is great for those who do not want to leave their car in the garage.