Car Key Fob Repair Isn't As Tough As You Think
Car Key Fob Repairs
Key fobs today can do more than unlock and start vehicles. This added complexity could lead to expensive repair bills if it breaks.

The good news is that most fobs use flat watch-style batteries that are easy to replace at home. And you may find that a reset will get yours working again.
Battery Replacement
The most frequent reason a key fob stops working is due to the battery being dead. It's a simple fix, and it's worth a try before you go spending money on a new key fob. You can pick up an additional button cell battery at a local auto part store or hardware retailer if you have one. You can also consult your owner's manual (or in the event that you don't have one, YouTube is full of videos of people who explain how to do it) for specific instructions on opening and replacing the battery in the particular type of fob.
You'll need to gently pull off the sides of many fobs to access the battery. You'll need a small flat-bladed screwdriver or another tool with a blade that is thin. You can put your tool into a notch on the bottom of the key fob. You might also want to look for tiny pieces that may come loose while working.
Once you have the new battery, you can insert it the same way that you removed the previous one. The positive (+) side should face the buttons and the reverse (-), the markings on the compartment for the battery.
Test the fob to see if it works by pushing the button. If it doesn't, there could be an issue with your vehicle that requires a specialist to repair or replace.
Certain key fobs require special tools to open, and the contacts inside can be fragile and susceptible to corroding. In these situations the best solution is to consult a car expert or dealer. When replacing a battery, be gentle and follow the owner's manual. You might be able to find a similar battery at a discounter or big-box retailer, but you'll need to refer to your owner's manual to make sure that it's the right one for your vehicle.
Replace the internal key
The majority of key fobs have the physical key mechanical that is hidden within the fob to keep it from being stolen. When the battery in the fob dies it will leave behind a blank internal key that is able to unlock doors and trunks (and in some cases, 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's battery. The flat watch-style battery is found in most modern fobs. These batteries are easily located at hardware and auto parts stores. It is essential to choose the correct type of battery. A wrong type of battery can harm the electronic circuitry, which can cause the battery to fail earlier.
If you replace the battery and find the problem persists it could be an indication that something else is going on with your car. Check your owner's manual to determine if there's a reset procedure that can bring the fob back to factory-setup. If this fails, you'll need to visit a dealership or an independent shop that specializes in vehicle-security systems and key fob programming.
Fobs may also malfunction because of faulty transmitter receivers. These are usually located close to the steering wheel, or on the dashboard. They transmit signals to enable you to unlock your car and begin it using the fob. broken car key repair may have to move closer to your car to enable it.
repair broken car key may be necessary for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver is usually enough to suffice, but certain fobs require a specific tool or equipment that can only be purchased at a dealer. It is a good idea to have a qualified mechanic handle this job to ensure you don't damage the fob or hurt yourself.
Reprogramming the Key
Most of the time, a key fob that isn't working simply requires a new battery. These batteries are readily available in home improvement and pharmacy stores and are inexpensive. This is a great way to start before buying the new key fob.
Alternatively, you may be able to program the fob yourself by following some basic steps. This process varies between vehicle makes, so it's important to consult your owner's manual as well as research the specifics of your particular model. One key fob could require the ignition to be turned on while reprogramming. Another may require the key to be removed and inserted repeatedly.
The general process is simple. First, ensure that the new battery is 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. Place the old key in the ignition, turn it ON however, don't start the engine. Next press the lock button on the fob while aiming it at the transmission receiver, which is typically situated on the front of the vehicle above the mirror. In a short period of time the key will announce to the vehicle that it's programmed by turning off the doors' locks or generating the sound of a chime. This can be a difficult process and it's crucial to be aware of the timing and not to over-press the key button.
If the key fob doesn't work Try reprogramming it using new batteries. If the problem persists then a visit to the dealer of your vehicle or locksmiths should be considered. A professional locksmith will have the tools and programming equipment needed to reprogram your car's fob or make the key if required.
Genesky says he's able to program newer fobs that range between $200 and $250, depending on the model of vehicle. However, he's had to turn away customers with European models because there's no equipment they require. The majority of aftermarket fobs can be programmed, but you should always consult your local dealer to determine the cost.
How do I get a brand new fob
If your key fob is simply beyond repair, you may need to get a new one. Depending on the make and model, the dealer or an auto locksmith might be able to assist. The dealership is likely to be the most expensive option to replace your fob, but it will also have the tools and software needed to program your car properly. Many independent locksmiths offer a brand new car key fob at a much lower price.
It's a good idea to try to reset the fob you have before you decide to buy an entirely new one. The owner's manual should explain the proper reset procedure that is typically the pushing of a button that restores the factory settings.
It is also a good idea to check your owner's manual as well as warranty information before deciding which place to go for an replacement fob for your key. If your car's warranty is still in effect or you have an auto club or insurance policy that covers bumper to bumper, you may qualify for a reimbursement on the cost of a replacement fob.
Finding the right place to get a fob can be a challenge. If you have a relatively new car and want the assurance with knowing that your keys fobs are in good order, you may be better off going to the dealership for this service. However, if you want an affordable alternative it is usually possible to find a locksmith who is independent who can provide the same service for a significantly lower price.
If you're not comfortable doing this type of work yourself, a professional locksmith can be a great choice. They are trained and equipped to reprogram or replace most types of car key fobs, and often, they can complete the task quickly. In addition, a locksmith is often able to come to your workplace or home to do the job which can be extremely practical for some. They can cut and program keys on the spot in case you've lost keys. This is great for those who don't like to leave their car unattended.