Car Key Fob Repairs
Key fobs today do a lot more than unlock and start cars. This added complexity can result in costly repairs when it fails.
It's good 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 common reason for a key fob that isn't working. It's easy to fix and worth trying before you invest in the replacement 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, if you don't have one, YouTube is full of videos from people who show you how to do it) for specific instructions on opening and replacing the battery in the specific type of fob you have.
The majority of fobs have two halves that snap together -you'll have to gently pull the sides apart to get to the battery. It's usually a screwdriver or some other tool with a thin, flat blade. It might help to look for a notch along the bottom of the fob that you can put your tool in between. You may also want to look out for small pieces that could break loose while you work.
Install the new battery in the same way as 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 marks inside the battery compartment of your fob.
Test the fob to see whether it functions by pressing a button. If it doesn't work, there may be a problem with your car that needs to be fixed or replaced by a professional.
Certain key fobs are difficult to open, and the contacts may be fragile and easily corroded. In these instances you should consult a specialist in your car or a dealer could be your best option. When replacing a battery be gentle and follow the owner's guide. You may be able to find a similar battery at a discounter or a big-box retailer however, you'll need to consult your owner's manual to be sure that it's compatible with your vehicle.
Replace the internal key
Most key fobs contain a physical mechanical key that is hidden within 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, 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 batteries are used in the majority of modern fobs. They can be found at hardware stores and auto parts stores. Using the correct type of battery is essential, however. The wrong type can damage the circuitry, causing the fob's failure much sooner.
If you try replacing the battery and find the problem persists it could be an indication that something else is wrong with your car. If you have an owner's guide look for there is a reset option available to restore the fob's factory programming. If this isn't working, you'll need go to a dealer or an independent shop that specializes in vehicle-security systems and key fob programming.
Fobs may also malfunction due to faulty transmitter receivers. They are typically located near the steering wheel or on the dashboard. They transmit signals to enable you to unlock your vehicle and start it using the fob. It is possible that you will need to get closer to the car in order to get it to work.
A professional might have to open the fob's case to replace the transmitter. A simple screwdriver can usually work, however some fobs require a specialized tool or equipment that can only be found at a dealer. This task should be performed by a qualified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that is not working could just require a new battery. These batteries are easily found in pharmacy and home improvement stores and are inexpensive. This is a great method to start before you purchase a new key fob.
Alternatively, you may be able to reprogram the fob by following the steps. The procedure varies for different vehicle brands, so it's essential to read the owner's manual as well as research the specifics of your model. One key fob could require that the ignition be switched on when programming. Another key might require the key to be removed and inserted repeatedly.
repair car key is easy. Make sure the battery is securely in place. Close all doors except the driver's door. This will ensure that the new key fob communicates with the vehicle properly. Then, place the old key back into the ignition and switch it to the ON position, but don't start the engine. Press the lock button while aiming the fob toward the transmission receiver. This is typically located on the left side, just above the mirror. Within a brief time the key will announce to the vehicle that it's being programmed by cycling the doors' locks or generating the sound of a chime. This process can be tricky so it's essential to be aware of the timing and don't over-press the key button.
If the key fob does not work after reprogramming, try using new batteries. If the issue is still there, you might want to visit your local locksmith or dealer. A professional will have the tools and equipment needed to reprogram your car's fob or make an entirely new key if needed.
Genesky says he can usually program newer fobs for $200 to $250, based on the car. But he's had to turn away customers with European models due to the fact that they don't have the costly equipment they require. Fortunately, many aftermarket fobs are programmable but it's always best to talk to the dealer of your choice first to see what their price is.
How do I get a brand new fob
If your key fob is damaged beyond repair, you could need to get a new one. Depending on your vehicle's model and make, an auto locksmith or a dealership may be able to help. The dealership is likely to be the most expensive option to replace your fob, but it will also have the tools and software necessary to program your car properly. If you're looking for a cheaper option, a number of independent locksmiths will be able to provide you with an entirely new car key fob for a much more reasonable cost.
It is a good thing to attempt to reset your current fob before you make the decision to purchase another one. The owner's manual should outline the correct method of reset. This is usually the result of a series of button presses that reset the factory program.
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 vehicle's warranty is still active or you have an auto club or car insurance policy that covers bumper to bumper you could qualify for a reimbursement of the cost of a replacement fob.
Getting a fob is easy enough, but finding the right location to get it done can be tricky. If you have a relatively new car and would like the security with knowing that your key fobs are in working order, you may be better off going to the dealership for this service. If you're seeking a less expensive alternative, it is possible to find a locksmith that can provide the same service at less cost.
If you're not comfortable doing this type of work on your own, a professional locksmith can be a good option. They are trained and equipped to replace or reprogram car key fobs of all kinds and do it quickly. Locksmiths is also able to visit your office or home which is a great option for many. They can even cut and program keys on-site if you have lost them, which is ideal for those who do not want to leave their cars unattended.