Car Key Fob Repairs
Key fobs today do much more than simply unlock and start vehicles. But that extra complexity can result in expensive repair costs if one of them breaks.
It's good to know that a majority of fobs are powered by flat watch-style batteries, which can be replaced at home. It is possible that a simple reset can allow your fob to function again.
Battery Replacement
A dead battery is the main cause of a key fob not working. This is a simple repair, and is worth a try before you go spending money on a new key fob. You can buy an additional button cell battery at your local auto part retailer or hardware store in the event that you already have one. You can also consult the owner's manual (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to open and replace the battery inside your fob.
You'll need to gently pry off the sides of many fobs to access the battery. You'll typically need a small screwdriver or some other tool with a thin, flat blade. It's a good idea to look for a notch on the lower edge of the fob that you can use to place your tool between. You may also want to keep an eye out for tiny pieces that may come loose while working.
Once you have your new battery, insert it in the same manner that you removed the old one. Make sure the positive (+) side is facing upwards 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 if it works by pushing the button. If it doesn't work, there could be a problem in your car that needs to be fixed or replaced by a specialist.
Certain key fobs are difficult to open, and the contacts could be fragile and easily corroded. In these situations, a car specialist or a dealer could be your best option. If you need to replace a battery, try to be very gentle and follow the instructions that are specific to the owner's manual. You may be able to locate an identical battery in a big-box store or discounter, however, make sure you check your owner's guide to ensure it is compatible with your vehicle.
Replacing the Internal Key
To protect against theft, the majority of key fobs come with an electronic key inside. If the battery of the fob fails it will leave behind a blank internal key that can unlock trunks and doors (and in some cases, start certain cars). Many people don't realize this, but they can avoid having to go to the dealership by simply replacing the fob's battery. Most modern fobs have flat watch-style batteries that are readily available at hardware stores and auto parts shops. The right kind of battery is essential however. A wrong battery can harm the circuitry, causing the fob to fail much earlier.
If the issue persists even after you have replaced the battery, it may be an indication that there is something else going on with your vehicle. Check your owner's manual to determine if you have a reset procedure that will bring the fob back to factory-setup. If this doesn't help you'll have to go to a dealership or an independent shop that specializes in vehicle security systems and fob programming.
Fobs can also malfunction due to faulty transmitter receivers. These are usually built into the dashboard or near the steering wheel, and transmit signals that allow you to unlock and start your car with the fob. If you're required to move closer and closer to your vehicle to be able to make it work, there's a good chance the transmitter is failing.
A professional might need to open the fob's case to replace the transmitter. A simple screwdriver will usually accomplish the task however, some fobs have complex release mechanisms that require a specialized tool or specialized equipment that is available only at a dealer. This is a job that should be done by a certified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that is not functioning simply requires a new battery. Because they are cheap and readily available at pharmacies and home improvement stores, it's a good first step before investing in a new car key fob.
You can also change the programming of your key fob by yourself by following a few basic steps. The process is different for different vehicles manufacturers, so it is important to consult your owner's manual and research the specifics of the model you own. A key fob may require that the ignition switch be on when reprogramming. One key fob could require the key to be inserted several times.
The basic procedure is simple. Make sure that the battery is securely in place. Then, get in the driver's seat and shut all doors, with the exception of the driver's side door. This will ensure that the new key is communicating with the vehicle in a correct manner. Then, put the old key back into the ignition and switch it to the ON position, but do not start the engine. Next, 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. Within a short time frame, the key will indicate to the vehicle that it's been programmed by triggering the doors' locks or generating an emitted sound. This is a difficult process, 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 issue persists, you may want to visit your car dealer or locksmith. A professional locksmith will have the tools and equipment to reprogram your car's key repair car fob or clone an entirely new key if needed.
Genesky claims he is able to program newer fobs between $200 and $250, depending on the vehicle. But he's had to turn away customers with European models because they don't have the costly equipment required. The majority of aftermarket fobs can be programmed, but you should always inquire with your local car dealer to find out the cost.
How do I get a brand new fob
If your key fob is simply damaged beyond repair, you could require a new one. Based on the make and model, the dealer or an auto locksmith may be able to help. The dealership is likely to be the most expensive choice to replace your fob, however, it will also have the tools and software necessary to program your car properly. Numerous locksmiths who are independent provide a new car key fob at a much lower price.
It is a good thing to try to reset your current device before you decide to buy another one. The owner's manual should provide the correct reset procedure. It is typically a series button presses which restores the factory settings.
You should also check your owner's guide and warranty information to determine whether you can obtain a replacement fob for your key. If your vehicle's warranty is still active or you have an auto club or car insurance policy that covers bumper to bumper, you may qualify to receive a reimbursement for the cost of replacing the fob.
Finding a fob is simple enough however finding the best location to do it can be a challenge. If you have a relatively new car and want the security with knowing that your key fobs are in good working order, you may prefer going to the dealership for this service. However, if you want a more affordable option it is usually possible to find a locksmith who is independent who can provide the same services for a significantly lower price.
A locksmith who is professional is a good option If you're not confident doing this type of work. They are certified and equipped to repair or replace most types of car key fobs and they can often accomplish the task in a short time. A locksmith is also able to visit your house or office which is convenient for many people. They can even cut and program keys on-site if you have lost keys, which is great for those who do not want to leave their vehicles unattended.