5 Conspiracy Theories About Car Key Fob Repair You Should Avoid
Car Key Fob Repairs
Key fobs today do much more than unlock and start vehicles. However, that added complexity can add up to expensive repair costs if one of them breaks.
It's good to know that most fobs are powered by flat-watch-style batteries which can be easily replaced at home. You might find that a simple reset is enough to make your fob work again.
Battery Replacement
A dead battery is the main reason for the fob's key not working. It's easy to repair and worth a try before you invest in a replacement fob. You can pick up an additional button cell battery at your local auto part store or hardware retailer If you own one. You can also consult the owner's manual (or YouTube for videos explaining how to replace the battery) for specific instructions on how to remove and replace the battery inside your fob.
Most fobs have two halves that snap togetheryou'll have to gently pull the sides apart to access the battery. You'll need a small, flat-bladed screwdriver, or a different tool with a thin blade. You can put your tool into a notch on the bottom of the key fob. You may also want to keep an eye out for small pieces that might break loose while you work.
Install central locking key repair in the same way you removed the old one. The positive (+) side should face the buttons and the reverse (-) the markings on the battery compartment.
Test the fob to see whether it is working by pressing the button. If it isn't working, there could be a problem in your vehicle that needs to be fixed or replaced by a specialist.
Certain key fobs require specific tools to open, and the contacts inside can be fragile and easily corroded. In these cases you should consult a specialist in your car or the dealer will likely be the best choice. When replacing a battery, be gentle and follow the owner's guide. You may be able to find a similar battery at a discounter store or a big-box retailer but you'll have to consult your owner's manual to make sure that it matches your car.
Replacing the Internal Key
Most key fobs include an actual mechanical key that is hidden within the fob to stop thieves from getting. If the battery inside the fob fails and the key is discarded, a blank one is left behind that can be used to unlock trunks and doors. In some cases, this key can even start certain cars. Most people don't know this however they could avoid a trip to the dealership by simply replacing the fob's battery. The flat watch-style batteries are used in most modern fobs. They can be located at auto parts stores and hardware stores. Choosing the right type of battery is essential, however. A wrong battery can harm the circuitry and cause the fob's failure much sooner.
If the problem continues to persist after you replace the battery, it may be an indication that there is something else wrong with your vehicle. Go through the owner's manual to determine if there's a reset procedure that can restore the fob to factory-setup. If this doesn't work, you'll have go to a dealer or an independent shop that specializes in vehicle-security systems and key fob programming.

Fobs can also fail because of faulty transmitter receivers. They are usually found close to the steering wheel or in the dashboard. They transmit signals to enable you to unlock your vehicle and start it using the fob. If you're being required to get closer and closer to your car in order to make it work, there's a great chance that the transmitter isn't working.
It may be necessary for a professional to remove the case of the fob in order to replace the transmitter. A simple screwdriver can usually get the job done, but some fobs have complex release mechanisms that require a special tool or specialized equipment available only at a dealer. It is a good idea to have a certified mechanic handle this job to ensure you don't damage the fob or injure yourself.
Reprogramming the Key
A key fob that is not functioning simply requires a new battery. They are easily available in pharmacy and home improvement stores and are inexpensive. This is a good option to begin before purchasing the new key fob.
You may also be able to reprogram the fob yourself by following some basic steps. The process is different for different vehicles makes, so it's important to read the owner's manual and research the specifics of the model you own. For central locking key repair could require that the ignition be switched on while reprogramming the key. Another might need the key to be inserted and removed repeatedly.
The basic procedure is simple. Make sure that the battery is securely in place. Close all doors, with the exception of the driver's door. This will ensure the new fob is communicating with the vehicle correctly. Then, put the old key back into the ignition and turn it to the ON position, but do not start the engine. Press the lock button while aiming the fob at the receiver for transmission. This is typically located on the front, above the mirror. In a short period of time, the key will indicate to the vehicle that it's being programmed by triggering the doors' locks or emitting an emitted sound. This can be a difficult process, so it's important to be attentive to the timing and to not over-press the key button.
If the key fob doesn't work after reprogramming it, try using a new battery. If the issue persists then a visit to the dealer of your vehicle or a locksmith is a good idea. A professional will have the tools and equipment needed to reprogram your car's fob or clone an entirely new key if needed.
Genesky says he's able to program newer fobs at around $200-$250, based on the car. Genesky has had European models rejected because they don't have the equipment required. Fortunately, most aftermarket fobs can be programmed but it's always best to talk to a car dealer first to find out the price.
Finding a New Fob
If the key fob you have cannot be repaired, you might have to purchase an entirely new one. Based on the make and model, an auto locksmith or dealership may be able help. The dealership will likely be the most expensive option for a fob replacement however, they'll have all the required tools and software to program your car correctly. Many independent locksmiths provide a new car key fob for an affordable price.
Before you decide to purchase a new key fob, it is a good idea to try resetting your current device. The owner's guide should explain the correct reset procedure. This is usually an orderly press that restores the factory programming.
It's also a good idea to read your owner's manual and warranty information before you decide the best place to get an replacement fob for your key. If your car is under warranty or you have a car insurance policy or auto club membership that provides bumper-to-bumper coverage, you may be eligible to receive a reimbursement for the cost of an entirely new fob.
Finding the best where to purchase a fob can be difficult. You may want to visit the dealer for this service if you have a newer vehicle and are looking to feel secure knowing that your keyfobs are working correctly. If you're looking for a cheaper alternative, it is possible to find a locksmith who will offer the same service for a lower price.
If you're not confident handling this type of work yourself A professional locksmith could be a great choice. They're trained and equipped to replace or reprogram car key fobs of all types and can do it quickly. A locksmith can also visit your house or office, which is convenient for many people. They can even cut and program keys on-site when you've lost them, which is ideal for those who don't like to leave their vehicles unattended.