A Brief History Of Car Key Fob Repair History Of Car Key Fob Repair

· 6 min read
A Brief History Of Car Key Fob Repair History Of Car Key Fob Repair

Car Key Fob Repairs

Key fobs today do a lot more than unlock and start vehicles. But that extra complexity can add up to costly repairs in the event that one of them malfunctions.

The good news is that most fobs are equipped with flat-watch-style batteries that are easy to replace at home. You might find that a simple reset will allow your fob to function again.

Battery Replacement

A dead battery is the most frequent reason for a key fob not working. It's a simple solve and is worth a try before you invest in the replacement fob. Take your car to an auto parts store or hardware retailer that carries button cell batteries and purchase the replacement. You can also refer to the owner's manual (or in the case that 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 your particular type of fob.

The majority of fobs have two halves that snap togetherYou'll need to pry the sides apart to access the battery. You'll require a small flat-bladed screwdriver, or a different tool with a blade that is thin. It's a good idea to look for a notch on the bottom of the fob that you can place your tool between. You might also want to look for tiny pieces that may come loose as you work.

Once you have the new battery, you can insert it in the same way that 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 isn't working, there could be a problem in your vehicle that needs to be fixed or replaced by a specialist.

Certain key fobs are difficult to open, and the contacts could be fragile and easily damaged. In these situations the best choice is to speak with a expert or dealer. When replacing a battery, be gentle and follow the owner's instructions. You might be able to find the same battery at a big-box store or discounter, but be sure you read the owner's manual to ensure it's compatible with your vehicle.

Replacing the Internal Key

Most key fobs contain the physical key mechanical that is hidden within the fob to stop thieves from getting. If the battery of the fob fails, it leaves an internal key that is blank which can open trunks and doors (and in some cases start certain cars). Most people don't realize that they can save a trip to a dealership by replacing the fob's batteries. The flat watch-style battery is found in most modern fobs. These batteries can be found in auto parts stores and hardware stores. It is important to use the correct type of battery. A wrong battery can harm the circuitry, causing the fob's failure much sooner.

If you try replacing the battery and find the issue is still there, it could be a sign that something else is wrong in your vehicle. Check your owner's manual to determine if there's a reset procedure that will 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 can also fail due to malfunctioning transmitter receivers.  car key repair  are typically located near the steering wheel or in the dashboard. They transmit signals to allow you to unlock your vehicle and start it using the fob. If you notice that you're required to move closer and closer to your vehicle to get it to work, there's a good chance the transmitter is failing.

A professional may need to open the fob's case to replace the transmitter. A simple screwdriver can usually do the trick, but certain fobs require a specific tool or a special piece of equipment that can only be found at a dealer. This job must be handled by a certified mechanic in order to avoid damaging the fob as well as yourself.

Reprogramming the Key

A key fob that's not working might just need an upgrade in battery. Because these batteries are cheap and readily available in pharmacies and home improvement stores, this is a good first step before buying the purchase of a new car key fob.

Alternately, you might be able to reprogram the fob on your own by following some basic steps. This process can vary between automobiles, so consult your owner's guide and research the model you have. For example one key fob could require that the ignition be on while reprogramming it. Another might need the key to be removed and inserted multiple times.

The basic procedure is simple. Make sure that the battery is securely in place. Then, get into the driver's seat and shut all doors EXCEPT for the driver's side door. This will ensure that the new key fob is communicating with the vehicle in a proper manner. Then, place 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 of the transmission. This is typically located on the left side, just above the mirror. The key will inform the vehicle within a brief amount of time that it's being programmed. This can be accomplished by turning the door locks, or emitting an audible chime. This is a challenging procedure, so pay attention to timing and don't over-press the button.

If the key fob does not work Try reprogramming it using new batteries. If the problem persists, a visit to your dealer for your car or a locksmith is a good idea. A professional will have all the tools and equipment to reprogram the car fob, or even create a brand new one if needed.

Genesky says he's able to program newer fobs at around $200-$250, depending on the model of vehicle. Genesky has been denied European models rejected due to the fact that he lacks the expensive equipment required. Fortunately, many aftermarket fobs can be programmed, but it's always best to talk to a car dealer first to determine what the cost is.

How to get a new fob

If your key fob can't be fixed, you could have to purchase another one. Based on the make and model, an auto locksmith or dealership may be able to help. The dealership is likely to be the most expensive option for a fob replacement, but they will also have all of the necessary tools and software needed to programme your vehicle properly. Many locksmiths in independent shops offer a brand new car key fob for the lower cost.

Before you purchase a new fob, it is a good idea to try resetting your current device. The owner's manual should explain the correct procedure for reset that is typically the pushing of a button which restores the factory settings.

It is also recommended to check the owner's guide and warranty information to see if you can get an additional key fob. If your car is under warranty, or you have a car-insurance policy or auto club membership with bumper-to-bumper coverage, you may be eligible for reimbursement for the cost of an entirely new fob.

Finding a fob is simple enough however finding the best location to do it can be tricky. You might want to go to the dealer for this service if are driving a brand new car and want to be confident that your key fobs are functioning properly. If you are looking for a more affordable alternative, it is possible to find a locksmith that will offer the same service at an affordable cost.

If you're not confident handling this type of work yourself A professional locksmith could be a great choice. They are trained and equipped to change or reprogram key fobs for cars of all types, and can do so quickly. In addition, a locksmith can often come to your home or office to complete the task, which can be very practical for some. They can also cut and program keys on the spot if you've lost keys. This is ideal for those who do not want to leave their car in the garage.