Car Key Fob Repairs
Key fobs today can do much more than just unlock and start vehicles. But that extra complexity can result in expensive repair costs when one of them fails.
It's important to know that most fobs are powered by flat watch-style batteries, which can be replaced at home. You may even find that a reset will bring it back to life.
Battery Replacement
A dead battery is the main reason for the fob's key not working. It's a simple repair and worth a try before you purchase the replacement fob. You can pick up the new button cell at your local auto parts store or hardware retailer if you have one. You can also consult your owner's manual (or, if you don't have one, YouTube is full of videos from people explaining how to do it) for specific instructions for opening and replacing the battery in the particular type of fob.
Most fobs come with two halves that snap togetherYou'll need to pull the sides apart in order to access the battery. You'll need a small flat-bladed screwdriver or another tool with a small blade. You can put your tool into a notch on the bottom of the key fob. You might also want to watch for tiny pieces that might break loose as you work.
Install the new battery in the same way you removed the old one. The positive (+) side should face the buttons and the reverse (-), the markings on the battery compartment.
Push a button to test the fob. If it doesn't, you might have a problem with your car that requires a professional to fix or replace.
Certain key fobs require special tools to open and close them, and the contacts inside can be fragile and easily corroded. In these situations an expert in the field or a dealer could be the best choice. If you're looking to replace batteries, you should be gentle and follow the instructions specifically in the owner's manual. You might be able to find the same battery at a big-box retailer or discounter, but make sure to check the owner's manual to make sure it's compatible with your car.
Replacing the Internal Key
The majority of key fobs have an actual mechanical key that is hidden within the fob to keep it from being stolen. When the fob battery dies, it leaves behind a blank internal key which can open doors and trunks (and in some cases, start certain cars). Most people aren't aware of this however, they can save having to go to the dealership by simply replacing the fob's battery. Most modern fobs use flat watch-style batteries that are easy to find in hardware stores and auto parts shops. It is crucial to choose the correct kind of battery. A bad battery can cause damage to the circuitry and lead to the fob's failure much sooner.
If you change the battery, and the issue persists it could be a sign that something else is happening with your vehicle. If you have an owner's guide, check to see if you can use a reset procedure to restore the fob's factory programming. If this doesn't work, you'll need to visit a dealership or an independent shop that is specialized in vehicle security systems and fob programming.
Fobs can also malfunction because of faulty transmitter receivers. These are usually located close to the steering wheel or on the dashboard. They transmit signals that enable you to unlock your car and begin it using the fob. If you notice that you're required to move closer and closer to your vehicle in order to make it work, there's a good possibility that the transmitter is not working.
A professional might have to open the case of the fob to replace the transmitter. A simple screwdriver is usually enough to do the trick, but certain fobs require a special tool or a special piece of equipment which can only be found at a dealership. It's a good idea to have a qualified mechanic handle this job to ensure you don't damage the fob or injure yourself.
Reprogramming the Key
Often a non-functional key fob just requires a new battery. These batteries are readily available in both pharmacy and home improvement stores and are affordable. This is a great option to begin before purchasing a new key fob.
You can also reprogram your key fob on your own by following some basic steps. This procedure can differ between automobiles, so read the owner's manual and research the model you have. For example, one key fob may require the ignition to be on while reprogramming it. Another key might require the key to be removed and inserted repeatedly.
The general procedure is very easy. First, ensure that the new battery is in place. Close all doors, with the exception of the driver's door. This will ensure that the new key fob communicates with the vehicle properly. Then, put the old key back in the ignition and switch it to the ON position, but do not start the engine. Press the lock button while aiming the fob toward the transmission receiver. This is typically located on the front above the mirror. Within a short time frame the key will announce to the vehicle that it's been programmed by cycling the doors locks or emitting a chime. This can be a difficult process, so it's important to be attentive to 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 persists then a visit to your dealer for your car or a locksmith should be considered. A professional will have all the tools and equipment to reprogram your car fob or create a new one, if required.
Genesky says that he can program newer fobs that range between $200 and $250, depending on the vehicle. But he's had to refuse customers with European models because there's no equipment they require. Luckily, the majority of aftermarket fobs can be programmed however it's best to check with the dealer of your choice first to see what their price is.
How do I get a new fob
If your key car key repairs fob is simply beyond repair, you might need to purchase an alternative. Based on the model and make, an auto locksmith or dealership may be able to help. The dealership is likely to be the most expensive choice to replace your fob, but it will also have the tools and software required to program your car correctly. Many independent locksmiths offer a brand new car key fob for an affordable price.
Before you decide to purchase a new key fob, it is an excellent idea to try resetting your current device. Your owner's manual should outline the proper procedure for reset which is typically the pushing of a button which restores the original programming.
It's also a good idea to check your owner's manual and warranty information before you decide where to go for an replacement fob for your key. If your car's warranty in good standing or you have an auto club or car insurance policy that covers bumper-to-bumper you could qualify for a reimbursement on the cost of replacing the fob.
Finding the best place to get a fob can be a challenge. If you own a new car and want the security with knowing that your keys fobs are in good working order, you may prefer going to the dealership to get this service. If you are looking for a more affordable alternative, it's possible to find a locksmith who will offer the same service for a lower price.
A locksmith professional is a great option for those who aren't comfortable with this kind of work. They are trained and equipped to repair or replace the majority of car key fobs and they can often do it quickly. Additionally, locksmiths can often come to your home or office to complete the task which can be extremely useful for certain people. They can cut keys and program them on site if you've lost them. This is great for those who do not want to leave their vehicle without a key.