Car Key Fob Repairs
Today's key fobs can do more than unlock and start cars. This extra complexity can lead to expensive repair bills in the event that it malfunctions.
It's important to know that a majority of fobs are powered by flat watch-style batteries which can be easily replaced at home. You may find that a simple reset will bring your fob back to life.
Battery Replacement
A dead battery is the most frequent cause of a key fob not working. This is easy to repair, and is worth a try before you spend money on a new key fob. Take your car to an hardware or auto parts retailer that stocks button cell batteries and pick up an alternative. You can also refer to your owner's guide (or YouTube for videos explaining how to replace the battery) for specific instructions on how to replace and open the battery inside your fob.
You'll have to gently pull apart the sides of most fobs to access the battery. You'll usually need a small screwdriver or a different tool with a thin, flat blade. You can wedge your tool into a notch at the bottom of the key fob. You might also want to be on the lookout for small pieces that could come loose while you work.
Insert the new battery the same manner as you removed the previous one. The positive (+) side should face the buttons, while the opposite side is facing (-) the marks on the compartment for the battery.
Test the fob to see if it works by pushing the button. If it doesn't work, there could be a problem in your car that needs to be repaired or replaced by a specialist.
Some key fobs require special tools to open, and the contacts inside can be fragile and susceptible to corroding. In these cases an expert in the field or a dealer could be the best option. When replacing a battery be gentle and follow your owner's manual. You may be able to locate a battery similar at a big-box retailer or discounter, but be sure to check the owner's manual to make sure it's compatible with your vehicle.
Replace the internal key
To prevent theft, most key fobs have a mechanical key hidden inside. When the battery in a fob dies and the key is discarded, a blank one is left behind that can be used to open doors and trunks. In certain cases, this key can even start certain cars. Most people aren't aware of this however they could save a trip to the dealership by simply replacing the fob battery. The flat watch-style battery is used in the majority of modern fobs. These batteries are easily found at auto parts stores and hardware stores. Using the correct type of battery is crucial however. The wrong kind can damage the electronic circuitry, causing the battery to fail earlier.
If you try replacing the battery and find the issue is still there, it could be an indication that something else is wrong with your vehicle. Go through the owner's manual to determine if there's a reset procedure that will restore the fob to the factory program. If nearby key repair shop fails, you'll need go to a dealer or an independent shop that specializes in vehicle-security systems and key fob programming.
Fobs could also fail because of faulty transmitter receivers. They are typically located on the dashboard or next to the steering wheel, and they send 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 in order to make it work, there's a high chance the transmitter is failing.
It could be necessary for a professional to remove the case of the fob in order to replace the transmitter. A simple screwdriver is enough to accomplish the task however, some fobs have complex release mechanisms that require a specialized tool or specialized equipment that is available only at a dealership. It's best to have a qualified mechanic handle this job to ensure you don't accidentally break the fob or hurt yourself.
Reprogramming the Key
A key fob that's not working may simply need a new battery. Because they are cheap and readily available in pharmacies and home improvement stores, it's a good first step before investing in the purchase of a new car key fob.
Alternatively, you may be able to program the fob by following a few basic steps. This process varies between vehicle brands, so it's essential to refer to the owner's manual and study the specifics of your particular model. One key fob could require that the ignition switch be on when programming. One key fob could require the key to be inserted multiple times.
The process is straightforward. Make sure the battery is securely in place. Close all doors except the driver's door. This will ensure that the new fob 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. Press the lock button while aiming the fob towards the receiver for transmission. It is usually located on the front above the mirror. The key will inform the vehicle within a brief amount of time that it is being programmed. This can be accomplished by turning off the door locks, or emitting an audible chime. This process can be tricky so it's essential to be attentive to the timing and not to over-press the key button.
If the key fob still isn't working, try reprogramming it again using new batteries. If the problem persists, a visit to the dealer of your vehicle or locksmiths should be considered. A professional locksmith will have the tools and equipment required to reprogram your car fob or create a new one if necessary.
Genesky says he's able to program newer fobs that range between $200 and $250, based on the vehicle. He's been denied European models turned away because they don't have the equipment needed. Fortunately, most aftermarket fobs are programmable but it's always recommended to consult an auto dealer first to see the price.
A New Fob
If your key fob is beyond repair, you might require an alternative. Depending on the make and model, a dealership or an auto locksmith may 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 needed to programme your vehicle properly. For a more affordable solution, many independent locksmiths can offer you a brand-new car key fob for a more affordable price.
Before you purchase an entirely new device it's a good idea to try resetting your current device. The owner's manual should explain the correct procedure for reset, which is usually just the pushing of a button which restores it to factory programming.
It is also recommended to check the owner's manual and warranty information to determine if you can get an alternative key fob. If your car's warranty still in effect or you have an auto club or insurance policy that covers bumper to bumper you could be eligible for a reimbursement of the cost of a replacement fob.
Finding the right location to purchase the fob you need can be difficult. You may want to go to the dealer for this service if have a newer car and want to be confident that your key fobs are functioning correctly. However, if you're looking for an affordable alternative it is usually possible to find a locksmith who is independent who can provide the same services for a lower cost.
If you aren't comfortable handling this type of work on your own A professional locksmith could be a great option. They're trained and equipped to repair or replace key fobs for cars of all types and can do it quickly. Locksmiths is also able to visit your house or office which is a great option for many. They can cut keys and program them on the spot in case you've lost them. This is ideal for those who don't like to leave their car without a key.