broken key repair can do more than unlock and start cars. However, that added complexity can cause expensive repair costs when one of them fails.
The good news is that most fobs have flat-watch-style batteries that are easy to replace at home. It is possible that a reset can bring it back to life.
Battery Replacement
A dead battery is the most common cause of the fob's key not working. It's simple to fix and worth trying before you spend money on the replacement fob. Simply drive your car to an auto parts store or hardware retailer that stocks button cell batteries and purchase a replacement. You can also consult your owner's guide (or YouTube for videos explaining how to replace the battery) to find specific instructions on how to remove and replace the battery in your fob.
You'll need to gently pry apart the sides of most fobs to reach the battery. You'll usually need a small screwdriver or a different tool that has a flat, thin blade. It may be helpful to look for a groove along the bottom of the fob which you can use to wedge your tool between. You might also want to watch for tiny pieces that could break loose as you work.
Install the new battery in the same way you removed the old one. The positive (+) side should be facing the buttons and the negative (-) the markings on the compartment for the battery.
Check the fob to determine whether it functions by pressing the button. If it fails, it could be a problem in your vehicle that needs to be fixed or replaced by a specialist.
Certain key fobs require special tools to open and close them, and the contacts inside may be delicate and easily corroded. In these cases the best choice is to speak with a expert or dealer. If broken key repair in need of replacing a battery, try to be gentle and follow the specific instructions in your owner's manual. You may be able to locate the same battery at a big-box store or discounter, but make sure to check the owner's manual to ensure it is compatible with your car.
Replace the internal key
Most key fobs include a physical mechanical key, but it's hidden inside the fob to prevent thieves. If the battery inside the fob fails it will leave a blank key left behind, which can be used to open trunks and doors. In certain cases, this key can even start certain vehicles. Most people aren't aware of this however, they can avoid from a trip to the dealer by simply replacing the fob battery. Most modern fobs have flat-watch-style batteries which can be found at hardware stores and auto parts shops. Choosing the right type of battery is essential however. The wrong kind can damage the electronic circuitry, causing the fob to fail sooner.
If you replace the battery and find the issue is still there it could be a sign something else is happening with your car. If you have an owner's guide, check to see if a reset procedure is available to restore the fob's original programming. If this doesn't help then you'll need to visit a dealership or an independent shop that specializes in vehicle-security systems and fob programming.
Fobs could also fail because of faulty transmitter receivers. These are usually located close to the steering wheel, or in the dashboard. They transmit signals to allow you to unlock your vehicle and start it using the fob. If you're having to get closer and closer to your car to be able to make it work, there's a high possibility that the transmitter is not working.
A professional might need to open the case to replace the transmitter. A simple screwdriver will usually accomplish the task, but some fobs have complex release mechanisms that require a specialized tool or specialized equipment available only at a dealer. This task must be handled by a certified mechanic in order to ensure that the fob is not damaged and yourself.
Reprogramming the Key
A key fob that is not functioning simply requires a new battery. These batteries are easily found in both pharmacy and home improvement stores and are affordable. This is a great way to start before buying an entirely new key fob.
You can also change the programming of your key fob on your own by following some basic steps. The procedure varies for different vehicle brands, so it's essential to refer to the owner's manual and research the specifics of your particular model. For example the key fob might require that the ignition be turned on while reprogramming it. Another might need the key to be inserted and removed several times.
The process is straightforward. Make sure the battery is securely in place. Then, get in the driver's seat and shut all doors EXCEPT for the driver's side door. This will ensure the new fob is communicating with the vehicle correctly. After that, put the old key back in the ignition and turn it to the ON position, but do not start the engine. Press the lock button while aiming the fob towards the transmission receiver. This is typically located on the left side, just above the mirror. Within a short time frame the key will announce to the vehicle that it's programmed by cycling the doors' locks or generating an emitted sound. This process can be tricky and it's crucial to pay attention to the timing and not to over-press the key button.
If the key fob still isn't working try reprogramming it using new batteries. If the issue is still there, you might want to check with your local dealer or locksmith. A professional locksmith will have the tools and equipment needed to reprogram the car fob or create a new one if necessary.
Genesky says that he can program newer fobs that range between $200 and $250, depending on the model of vehicle. Genesky has had European models turned away because there isn't the equipment required. A majority of the aftermarket fobs are programmed, but you should always check with your local dealer to find out the cost.
How to get a new fob
If the key fob you have cannot be fixed, you could have to purchase an entirely new one. Depending 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. Many independent locksmiths provide a new car key fob at a much lower price.
It is a good thing to attempt to reset your current device before you rush out to buy an entirely new one. The owner's manual should outline the correct method of reset. It is typically a series button presses which restores the factory settings.
It is recommended to check the owner's manual and warranty information before you decide which place to go for the replacement of your key fob. If your car's warranty is in good standing or you have an auto club or insurance policy that covers bumper-to-bumper you could qualify to receive a reimbursement for the cost of replacing the fob.
Finding the right place to get the fob you need can be difficult. If you own a new car and would like the assurance with knowing that your keys fobs are in working order, you may prefer going to the dealership for this service. However, if you're looking for a more affordable option it is usually possible to find an independent locksmith who can provide the same service for a significantly lower price.
A professional locksmith is a good option for those who aren't comfortable with this type of work. They're trained and equipped to change or reprogram key fobs for cars of all kinds, and can do so quickly. Additionally, locksmiths will often visit your home or office to do the job which can be extremely convenient for some people. They can even cut and program keys on the spot in case you've lost keys, which is ideal for those who don't like to leave their vehicles unattended.