Car Key Fob Repair Explained In Less Than 140 Characters

Car Key Fob Repairs

Key fobs today can do much more than unlock and start vehicles. This extra complexity can lead to expensive repair bills if it breaks.

It's good 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 can get yours working again.

Battery Replacement

The most common reason that a key fob doesn't work 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. Simply take your car to an auto parts store or a hardware retailer that stocks button cell batteries and purchase an alternative. 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 on opening and replacing the battery in the specific type of fob you have.

Most fobs have two halves that snap together- you'll need to gently pry the sides apart to get to the battery. It's usually a screwdriver or a different tool with a thin, flat blade. It's a good idea to look for a notch on the bottom of the fob which you can place your tool between. You may also want to keep an eye for tiny pieces that might break loose as you work.

Once you have your new battery, you can insert it the same way that you removed the previous one. Make sure the positive (+) side is facing upwards toward the buttons, and that the negative (-) side of the battery is aligned correctly with the marks inside the battery compartment of your fob.

Check the fob to determine whether it functions by pressing the button. If it doesn't work, there could be a problem in your vehicle that needs to be fixed or replaced by a specialist.

Certain key fobs can be difficult to open and the contacts could be fragile and easily corroded. In these situations the best choice is to consult a car specialist or dealer. If you need to replace batteries, you should be gentle and follow the instructions that are specific to the owner's manual. You may be able to locate an identical battery at a big-box retailer or discounter, but be sure you read your owner's guide to ensure it is compatible with your vehicle.

Replacing the Internal Key

Most key fobs include an actual mechanical key, but it's hidden inside the fob to keep it from being stolen. When the battery in the fob dies it will leave an internal key blank which can open trunks and doors (and in some cases, start certain cars). Most people do not realize that they can avoid a trip to the dealership by replacing the fob's batteries. Most modern fobs have flat watch-style batteries that can be found at auto parts stores and hardware shops. Choosing the right type of battery is important however. A wrong type of battery can harm the electronic circuitry, which can cause the fob to fail much sooner.

If you replace the battery and find the issue persists, it could be a sign something else is wrong in your vehicle. Check your owner's manual to determine if there's a reset procedure that can restore the fob to factory programming. If this isn't working, you'll need to visit a dealership or independent shop that specializes security systems for vehicles and key fob programming.

Fobs may also fail due to malfunctioning transmitter receivers. They are usually found close to the steering wheel, or on the dashboard. They transmit signals that allow you to unlock your car and start it with the fob. It is possible that you will need to get closer to the car in order to get it to work.

It might be necessary for a professional to open the case of the fob in order to replace the transmitter. A simple screwdriver is enough to get the job done however, some fobs have complicated release mechanisms that require a specific tool or specialized equipment available only through a dealer. This task should be performed by a certified mechanic to ensure that the fob is not damaged and yourself.

Reprogramming the Key

Often a non-functional key fob simply needs a fresh battery. These batteries are easily found in pharmacy and home improvement stores and are inexpensive. This is a good way to start before buying the new key fob.

You can also reprogram your key fob yourself by following a few basic steps. The procedure varies for different vehicle makes, so it's important to read the owner's manual as well as research the specifics of the model you own. For instance, one key fob may require that the ignition be on while reprogramming it. One key fob could require the key to be inserted several times.

The procedure is simple. Make sure that the battery is securely in place. Then, get into the driver's seat and shut all doors, excluding the driver's side door. This will ensure that the new key is communicating with the vehicle correctly. Insert the old key into the ignition, turn it ON however, do not start the engine. Press the lock button while aiming the fob toward the receiver for transmission. This is usually located on the left side, just above the mirror. The key will inform the vehicle within a brief amount of time that it is being programmed. This can be done by cycling the door locks or by emitting an audible chime. This is a difficult process, so pay close attention to the timing and avoid pressing too hard the button.

If the key fob won't work after reprogramming, try replacing the batteries. If the issue is still there, you might want to check with your local locksmith or dealer. A professional will have all the tools and equipment required to reprogram the car fob, or even create a brand new one if necessary.

Genesky says he's able to program newer fobs for around $200-$250, based on the model of vehicle. He's been denied European models rejected because there isn't the equipment needed. The majority of aftermarket fobs can be programmed, but always inquire with your local car dealer to find out the price.

Getting a New Fob

If your key fob is beyond repair, you may need to purchase an entirely new one. 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 for a replacement fob, however, key Fob repairs it will also have the tools and software needed to program your car correctly. Many independent locksmiths offer a new car key fob at a much lower price.

Before you rush to get an entirely new device, it is a good idea to try resetting your current one. The owner's guide should explain the correct procedure for reset. It is typically a series button presses that reset the factory program.

You should also look over the owner's manual and warranty information to determine whether you are eligible for an alternative key fob. If your car's warranty is in good standing or you have an auto club or car insurance policy that covers bumper to bumper you could be eligible for a reimbursement on the cost of replacing the fob.

Finding a fob is simple enough however, finding the right location to do it can be tricky. If you have a relatively new vehicle and you want the security from knowing that your key fobs are in good working order, you may be better off visiting the dealership to get this service. If you are looking for a more affordable alternative, it is possible where to repair car key remote find a locksmith that will offer the same service for an affordable cost.

If you're not comfortable doing this kind of work yourself, a professional locksmith can be a great option. They are certified and equipped to replace or reprogram all kinds of car key fobs and they can often complete the task quickly. Additionally, locksmiths can often come to your workplace or home to do the job, which can be very useful for certain people. They can even cut and program keys on-site if you have lost keys, which is ideal for those who don't like to leave their cars unattended.