Car Key Fob Repairs
Key fobs today do a lot more than simply unlock and start vehicles. This added complexity could cause costly repair costs when it fails.
The good news is that the majority of fobs are equipped with flat-watch-style batteries that are simple to replace at home. It is possible that a reset can make your device work again.
Battery Replacement
The most frequent reason the key fob ceases to function is because of an inoperative battery. It's a simple repair, and is worth trying before you decide to spend money on a new fob. You can purchase a new button cell battery at a local auto part retailer or hardware store If you own one. 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 need to gently pull apart the sides of most fobs to reach the battery. You'll need a small, flat-bladed screwdriver, or another tool with a small blade. You can insert your tool into a notch on the bottom of the key fob. You might also want to watch out for small pieces that could break loose while you work.
Once you have your new battery, you can insert it in the same manner that you removed the previous one. The positive (+) side should face the buttons and the reverse (-) the markings on the compartment for the battery.
Check the fob to determine if it works by pushing a button. If it doesn't work, you might have a problem with your car that requires a specialist to repair or replace.

Certain key fobs can be difficult to open and the contacts may be brittle and easily corroded. In these cases, a car specialist or a dealer could be your best option. When replacing a battery be gentle and follow your owner's guide. You might be able locate a comparable battery at a discounter or big-box retailer but you'll have to check the owner's manual to ensure that it matches your car.
Replacing the Internal Key
Most key fobs include an actual mechanical key that is hidden within the fob to keep it from being stolen. When the battery in the fob dies, it leaves an internal key that is blank which can open trunks and doors (and in some cases start certain vehicles). Most people don't know this, but they can avoid having to go to the dealership by simply replacing the fob battery. The majority of modern fobs utilize flat watches-style batteries that can be found at hardware stores and auto parts shops. Choosing the right type of battery is essential, however. A bad battery can damage the electronic circuitry and cause the fob to fail earlier.
If you try replacing the battery and find the issue persists, it could be an indication that something else is happening with your car. Review the owner's manual of your vehicle to determine if you have an option to reset the fob and bring the fob back to factory programming. If this isn't working, you'll need go to a dealer or independent shop that specializes vehicle-security systems and key fob programming.
Fobs can also malfunction due to malfunctioning transmitter receivers. They are typically placed on the dashboard or near the steering wheel, and they send signals that allow you to open and start your car using the fob. If repair car key notice that you're required to move closer and closer to your vehicle to be able to make it work, there's a high chance the transmitter is failing.
A professional might need to open the fob's case to replace the transmitter. A simple screwdriver can usually suffice, but certain fobs require a special tool or a special piece of equipment that can only be found at a dealer. It's best to have a certified mechanic do this job so that you don't damage the fob or injure yourself.
Reprogramming the Key
A key fob that is not working could just require an upgrade in battery. These batteries are readily available in home improvement and pharmacy stores and are cheap. This is a good method to start before you purchase a new key fob.
Alternatively, you may be able to reprogram the fob yourself by following some basic steps. This procedure can differ between automobiles, so refer to the owner's manual and research your specific model. For example, one key fob may require that the ignition be switched on while reprogramming the key. One key fob may require the key to be inserted multiple times.
The process is straightforward. First, make sure that the new battery is firmly in place. Close all doors except the driver's door. This will ensure that the new key fob can communicate with the vehicle properly. Then, place the old key back into the ignition and turn it to the ON position, but do not start the engine. Press the lock button while aiming the fob toward the receiver for transmission. It is usually located on the left side, just above the mirror. Within a short time frame the key will signal to the vehicle that it's being programmed by triggering the doors' locks or emitting an emitted sound. This can be a tricky procedure, so pay attention to timing and don't over-press the button.
If the key fob still does not work Try reprogramming it with new batteries. If the issue is still there, you might want to check with your car dealer or locksmith. A professional locksmith will have the tools and equipment required to reprogram your car fob or design a new one if needed.
Genesky claims he is able to program newer fobs between $200 and $250, based on the vehicle. However, he's had to turn down customers who have European models because there's no equipment they require. A majority of the aftermarket fobs are programmed, but you should always inquire with your local car dealer to find out the price.
How do I get a new fob
If your key fob is simply beyond repair, you may require a new one. Depending on the make and model, a dealership or an auto locksmith may 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 required to program your car properly. For a more affordable solution, many independent locksmiths can provide you with new car keys at a lower price.
Before you rush to get a new fob, it is an excellent idea to try resetting your current device. The owner's manual should outline the correct reset procedure. It is typically a series button presses that restores the factory programming.
It's recommended to review your owner's manual as well as warranty information before deciding where to go for a key fob replacement. If your car is still under warranty, or you have a car insurance policy or auto club membership that provides bumper-to-bumper insurance, you might be eligible to receive a reimbursement for the cost of an entirely new fob.
Finding the right location to purchase a fob can be difficult. You may want to visit the dealer for this service if have a newer vehicle and you want peace of mind knowing that your key fobs are functioning properly. If you are looking for a cheaper alternative, it's possible to find a locksmith who can provide the same service at less cost.
A professional locksmith is a good option If you're not confident doing this type of work. They are skilled and equipped to reprogram or replace all kinds of car key fobs and often, they can accomplish the task in a short time. Additionally, locksmiths is often able to come to your office or home to do the job which is convenient for some people. They can even cut and program keys on-site if you have lost keys, which is great for those who don't like to leave their cars in the dark.