Car Key Fob Repairs
Key fobs of today are more than just a way to unlock and start cars. This added complexity could result in costly repairs when it fails.
The positive side is that many fobs are equipped with flat-watch-style batteries that are simple to replace at home. It is possible that a reset will get yours working again.
Battery Replacement
The most frequent reason the key fob ceases to function is because of a dead battery. It's a simple repair, and is worth trying before you decide to spend money on a new key fob. You can purchase a new button cell battery at your local auto part store or hardware retailer If you own one. You can also refer to your owner's manual (or in the case that you don't have one, YouTube is full of videos from people who show you how to do it) for specific instructions for opening and replacing the battery on the particular type of fob.
You'll need to gently pry away the sides of the majority of fobs in order to access the battery. It's usually a screwdriver or another tool with a thin, flat blade. It's a good idea to look for a notch along the lower edge of the fob that you can put your tool in between. It is also advisable to look out for small pieces that may come loose while you work.
Install the new battery in the same way as you removed the previous one. The positive (+) side should face the buttons and the reverse (-) the marks on the battery compartment.
Test the fob to see whether it functions by pressing the button. If it doesn't work, you might have an issue with your vehicle that requires a specialist to fix or replace.
Certain key fobs can be difficult to open and the contacts may be brittle and easily damaged. In these cases, the best option is to speak with a expert or dealer. If you're in need of replacing batteries, you should be very gentle and adhere to the instructions that are specific to the owner's manual. You might be able to find the same battery at a big-box retailer or discounter, but be sure to check the owner's manual to ensure that it's compatible with your vehicle.
Replace the internal key
To guard against theft, many key fobs have a mechanical key hidden inside. When the fob battery dies it leaves behind a blank internal key that can unlock trunks and doors (and in some cases, even start certain vehicles). Many people don't realize this however, they can avoid a trip to the dealership by simply replacing the fob battery. The flat watch-style battery is found in the majority of modern fobs. They can be located at auto parts stores and hardware stores. It is crucial to choose the correct type of battery. The wrong kind can damage the electronic circuitry and cause the battery to fail faster.
If you replace the battery, and the issue persists, it could be a sign that something else is happening in your vehicle. Review the owner's manual of your vehicle to see if there's a reset procedure that can restore the fob to factory-setup. If that doesn't help, you'll need to visit a dealer or an independent shop that is specialized in vehicle security systems and fob programming.
Fobs may also fail because of faulty transmitter receivers. They are typically located close to the steering wheel, or on the dashboard. They transmit signals that allow you to unlock your car and begin it using the fob. You may have to move closer to your car to make it work.
It might be required for a professional to access the case of the fob to replace the transmitter. A simple screwdriver can usually do the job however some fobs come with complicated release mechanisms that require a special tool or specialized equipment available only at a dealer. This task must be handled by a qualified mechanic to avoid damaging the fob as well as yourself.
Reprogramming the Key
Often a non-functional key fob just requires a new battery. Since these batteries are inexpensive and readily available at pharmacies and home improvement stores, this is a good first step before purchasing an entirely new car key fob.
Alternately, you might be able to re-program the fob by following some basic steps. This process can vary between automobiles, so consult your owner's guide and research the model you have. One key fob could require that the ignition switch be switched on when changing the program. One key fob could require the key to be inserted multiple times.
The basic procedure is simple. First, make sure that the new battery is firmly in place. Then, get into the driver's seat, and close all doors, excluding the driver's side door. This will ensure that the new fob is communicating with the vehicle in a correct manner. Place the old key in the ignition and turn it ON, but don't start the engine. Then press the lock button on the fob while making sure to point it towards the transmission receiver, which is usually situated on the front of the vehicle above the mirror. Within a short time frame the key will signal to the vehicle that it's programmed by cycling the doors' locks or emitting an emitted sound. This can be a tricky process, so pay close attention to the timing and avoid pressing too hard the button.
If the key fob does not function after reprogramming, you can try replacing the batteries. If the issue persists, you might want to check with your car dealer or locksmith. A professional will have the tools and programming equipment needed to reprogram your car's fob, or create an entirely new key if needed.
Genesky says he's able to program newer fobs for $200-$250, depending on the car. However, he's had to refuse customers with European models due to the fact that he doesn't have the expensive equipment required. Fortunately, most aftermarket fobs can be programmable but it's always recommended to consult an auto dealer first to see the price.

How to get a new fob
If your key fob is simply damaged beyond repair, you could need to get an entirely new one. Depending on the make and model, an auto locksmith or a dealership might be able to assist. The dealership is likely to be the most expensive alternative for replacing a fob However, they'll have all the required tools and software needed to program your vehicle correctly. Many independent locksmiths provide a new car key fob at an affordable price.
It is a good thing to attempt to reset your current fob before you rush out to buy another one. Your owner's manual should outline the proper procedure for reset, which is usually just a series of button pushes that restores the original programming.
It is an excellent idea to check your owner's manual as well as warranty information before deciding which place to go for the replacement of your key fob. If your vehicle's warranty is still active or you have an auto club or insurance policy that covers bumper to bumper you could qualify for a reimbursement on the cost of replacing the fob.
Finding car key repairs near me where to purchase a fob can be difficult. If you own a new car and would like the peace of mind that comes with knowing that your keys fobs are in working condition, you might be better off going to the dealership to get this service. If you are looking for a cheaper alternative, it is possible to find a locksmith who can provide the same service at an affordable cost.
A professional locksmith is a great choice if you're not comfortable doing this type of work. They are trained and equipped to repair or replace keys for cars of all types, and can do so quickly. A locksmith can also come to your office or home which is convenient for many people. They can even cut and program keys on-site when you've lost keys, which is ideal for those who don't like to leave their vehicles unattended.