Car Key Fob Repair: What No One Is Discussing
Car Key Fob Repair: What No One Is Discussing
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Car Key Fob Repairs
Key fobs today do much more than unlock and start vehicles. But that extra complexity can result in 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 reset can get yours working again.
Battery Replacement
The most frequent reason the key fob ceases to function is because of an inoperative battery. This is easy to fix, and it's worth a try before you decide to spend money on a new key fob. Simply take your car to a local hardware or auto parts retailer that sells button cell batteries and purchase the replacement. You can also refer to your owner's manual (or in the event that you don't have one, YouTube is full of videos from people explaining how to do it) for specific instructions on opening and replacing the battery in the particular type of fob.
Most fobs come with two halves that snap together -- you'll need to gently pull the sides apart to get to the battery. You'll usually need a small screwdriver or another tool equipped with a thin, flat blade. You can insert your tool into a slot on the bottom of the key fob. It is also advisable to look for small pieces that could be loosened while working.
Insert the new battery in the same way as you removed the previous one. The positive (+) side should be facing the buttons and the negative (-), the markings on the battery compartment.
Check the fob to determine if it works by pushing a button. If it doesn't work, you might have an issue with your vehicle that requires a specialist to repair or replace.
Certain key fobs require special tools to open and close them, and the contacts inside may be delicate and susceptible to corroding. In these situations, a car specialist or the dealer will likely be the best option. 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 find a similar battery at a discounter store or a big-box retailer, but you'll need to refer to your owner's manual to make sure that it matches your car.
Replace the internal key
Most key fobs contain a physical mechanical key, but it's hidden inside the fob to keep it from being stolen. If the battery of the fob fails it will leave an internal key that is blank which can open trunks and doors (and in some cases, start certain cars). Most people do not realize that they can save a trip to a dealership by replacing the fob batteries. Most modern fobs have flat watch-style batteries that are easy to find in auto parts stores and hardware shops. It is crucial to choose the right type of battery. A bad battery can damage the electronic circuitry, causing the battery to fail sooner.
If you replace the battery and find the problem persists it could be a sign something else is happening with your car. Go through the owner's manual to see if there's a reset procedure that can bring the fob back to factory-setup. If that doesn't help, you'll need to visit 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 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 your car to get it to work.
It might be necessary for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver will usually suffice, but certain fobs require a special tool or a special piece of equipment that can only be found at a dealer. This job must be handled by a qualified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that's not working may simply need a new battery. They are easily available in home improvement and pharmacy stores and are affordable. This is a great way to start before buying the new key fob.
Alternatively, you may be able to reprogram the fob yourself by following a few basic steps. The process is different for different vehicles manufacturers, so it is important to read the owner's manual and study the specifics of your model. A key fob may require that the ignition be on when changing the program. One key fob could require the key to be inserted multiple times.
The basic procedure is simple. First, ensure that the new battery is in place. Then, get in the driver's seat and close all doors, excluding the driver's side door. This will ensure that the new key fob is communicating with the vehicle correctly. After that, put the old key back into the ignition and turn it on to the ON position, but do not start the engine. Press the lock button while aiming the fob at the transmission receiver. This is usually located on the front, above the mirror. The key will signal to the vehicle within a brief amount of time that it's being key repairs programmed. This can be done by turning off the door locks or emitting an audible chime. This is a difficult 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 with new batteries. If the problem persists you might want to visit your car dealer or locksmith. A professional locksmith will have the tools and programming equipment to reprogram your car's fob, or create the key if required.
Genesky says he can usually program newer fobs for $200 to $250, based on the vehicle. However, he's had to turn away customers with European models because they don't have the costly equipment they require. Most aftermarket fobs can be programmed, but you should always consult your local dealer to find out the price.
Finding a New Fob
If your key fob cannot be repaired, you may have to purchase an entirely new one. Based 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 alternative for replacing a fob, but they will also have the necessary tools and software needed to programme your vehicle properly. If you're looking for a cheaper option, a number of independent locksmiths can offer you new car keys for a more affordable price.
Before you purchase a new fob it's a good idea to try resetting your current one. The owner's manual should outline the correct procedure for reset. It is typically a series button presses that reset the factory program.
It is also recommended to check the owner's guide and warranty information to determine if you can get an alternative key fob. If your vehicle's warranty is still active or you have an auto club or car insurance policy that covers bumper-to-bumper you could be eligible for a reimbursement on the cost of a replacement fob.
The process of getting a fob can be simple enough however finding the best location to get it done isn't easy. It is possible to visit the dealer for this service if you are driving a brand new car and you want peace of mind knowing that your key fobs are functioning correctly. If you're seeking a less expensive alternative, it is possible to find a locksmith who will provide the same service for a lower price.
If you're not comfortable doing this kind of work yourself A professional locksmith could be a great option. They are certified and equipped to reprogram or replace the majority of car key fobs and they can often accomplish the task in a short time. Locksmiths can also visit your house or office which is convenient for many people. They can even cut and program keys on the spot when you've lost keys, which is ideal for those who don't like to leave their vehicles unattended.