Car Key Fob Keyless entry repairs

Key fobs today do a lot more than unlock and start vehicles. But that extra complexity can result in high repair bills when one of them fails.

It's good to know that the majority of fobs are powered by flat-watch-style batteries which can be replaced at home. It is possible that a simple reset will allow your fob to function again.

Battery Replacement

The most frequent reason a key fob stops working is because of an inoperative battery. It's a simple fix, and it's worth trying before you go spending money on a new fob. Take 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 manual (or, if you don't have one, YouTube is full of videos of people who explain how to do it) for specific instructions for opening and replacing the battery in your particular type of fob.

You'll need to gently pry away the sides of the majority of fobs to access the battery. You'll usually need a small screwdriver or a different tool that has a flat, thin blade. It might help to look for a groove along the bottom of the fob that you can use to put your tool in between. You might also want to look for small pieces that could be loosened while working.

Once you have your new battery, you can insert it the same way that you removed the old one. The positive (+) side should face the buttons and the reverse (-) the marks on the battery compartment.

You can push a button to test the fob. If it isn't working, there may be a problem with your car that needs to be repaired or replaced by a specialist.

Certain key fobs are difficult to open and their contacts could be fragile and easily corroded. In these situations the best choice is to consult a car expert or a dealer. If you need to replace batteries, you should be gentle and follow the instructions specifically in the owner's manual. You might be able to find an identical battery at a big-box store or discounter, however, make sure you check the owner's manual to ensure that it's compatible with your vehicle.

Replacing the Internal Key

To guard against theft, many key fobs come with an internal mechanical key that is hidden within. When the fob battery dies it will leave an internal key that is blank that can unlock trunks and doors (and in some cases, even start certain cars). A majority of people do not realize that they can avoid a trip to a dealership by recharging the fob batteries. Most modern fobs use flat-watch-style batteries which are readily available at auto parts stores and hardware shops. The right kind of battery is crucial however. A bad battery can cause damage to the circuitry, causing the fob's failure much sooner.

If you change the battery and find the issue persists, it could be an indication that something else is going on with your vehicle. Check your owner's manual to determine if there's a reset procedure that will restore the fob's factory programming. If this doesn't help then you'll need to go to a dealership or an independent shop that is specialized in vehicle security systems and fob programming.

Fobs may also malfunction due to faulty transmitter receivers. These are usually built into the dashboard or next to the steering wheel, and they send signals that allow you to unlock and start your car with the fob. You may need to get closer to the car to get it to work.

It may be necessary for a professional to remove the case of the fob in order to replace the transmitter. A simple screwdriver will usually accomplish the task however some fobs come with complicated release mechanisms that require a specific tool or specialized equipment that is available only at a dealer. This task should be done by a qualified mechanic to avoid damaging the fob and yourself.

Reprogramming the Key

A key fob that is not functioning simply requires a new battery. Because they are cheap and easily available at pharmacies and home improvement stores, it's an excellent first step prior to buying the purchase of a new car key fob.

Alternatively, you may be able to reprogram the fob by following some basic steps. The procedure may differ for different vehicles, so you should refer to the owner's manual and study the specific model of your vehicle. A key fob may require the ignition to be turned on while reprogramming. Another might need the key to be inserted and removed multiple times.

The basic procedure is simple. First, make sure the new battery is in place. Close all doors, except the driver's door. This will ensure that the new key is communicating with the vehicle in a correct manner. After that, put the old key back into the ignition and turn it on to the ON position, but don't start the engine. Press the lock button while aiming the fob toward the receiver for transmission. This is typically located on the front, above the mirror. Within a short time frame, the key will indicate to the vehicle that it's programmed by triggering the doors locks or emitting an emitted sound. This is a difficult process, so pay attention to timing and don't over-press the button.

If the key fob won't function after reprogramming, you can try using a new battery. If the issue isn't resolved you should visit your car dealer or locksmiths should be considered. A professional will have the tools and programming equipment needed to reprogram your car's fob, or create the key if needed.

Genesky says he's able to program newer fobs ranging from $200 and $250, depending on the vehicle. He's been denied European models rejected because he lacks the expensive equipment needed. The majority of aftermarket fobs can be programmed, but you should always inquire with your local dealer to find out the cost.

A New Fob

If your key fob is beyond repair, you may need to get an alternative. Based on the make and model, an auto locksmith or a dealership may be able help. The dealership is likely to be the most expensive choice to replace your fob, but it will also have the tools and software necessary to program your car correctly. If you're looking for a cheaper solution, a variety of locksmiths will be able to provide you with a brand-new car key fob repairs key fob at a lower price.

It is a good thing to try to reset your current fob before you make the decision to purchase a new one. The owner's manual should outline the correct reset procedure. It is typically a series button presses which restores the factory settings.

You should also look over the owner's guide and warranty information to see whether you can obtain a replacement key fob. If your car is under warranty, or you have a car insurance policy or auto club membership that includes bumper-to-bumper protection, you may be eligible to receive a reimbursement for the cost of a new fob.

Finding the right place to get a fob can be a challenge. If you have a relatively new vehicle and you want the security with knowing that your key fobs are in good working condition, you might be better off going to the dealership to get this service. However, if you're looking for an option that is more affordable it is possible to find an independent locksmith who can offer the same services for a significantly lower price.

A locksmith professional is a good option if you're not comfortable doing this type of work. They are skilled and equipped to reprogram or replace most types of car key fobs, and they can often do it quickly. In addition, a locksmith will often visit your home or office to do the job which can be extremely convenient for some people. They can cut keys and program them on the spot if you've lost them. This is great for those who don't want to leave their vehicle without a key.