Car Key Fob Repairs
Key fobs today do a lot more than just unlock and start vehicles. This added complexity can result in costly repairs in the event that it malfunctions.
The good news is that most fobs are equipped with flat-watch-style batteries that are simple to replace at home. It is possible that a simple reset is enough to make your fob work again.
Battery Replacement
A dead battery is the most frequent cause of a key fob not working. It's simple to repair and worth a try before you spend money on a replacement fob. Take your car to an auto parts store or hardware retailer that sells button cell batteries and purchase the replacement. You can also check your owner's manual (or in the case that 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 on the specific type of fob you have.
You'll need to gently pry apart the sides of most fobs to reach the battery. You'll require a small flat-bladed screwdriver, or another tool with a thin blade. It may be helpful to look for a notch on the bottom of the fob that you can wedge your tool between. You may also want to look out for small pieces that could break loose while working.
When you have your new battery, place it the same way that you removed the old one. Make sure that the positive (+) side is facing up towards the buttons and that the negative (-) side of the battery is aligned correctly with the marks inside the battery compartment of your fob.
Press a button to test the fob. If it doesn't, you might have an issue with your vehicle that requires a professional to repair or replace.
Certain key fobs can be difficult to open and their contacts could be fragile and easily corrosion-prone. In these situations, the best option is to talk to a expert or dealer. If you're looking to replace a battery, try to be very gentle and follow the instructions specifically in your owner's manual. You might be able to locate a comparable battery at a discounter or big-box retailer, but you'll need to check the owner's manual to make sure that it's the right one for your vehicle.
Replace the internal key
Most key fobs include a physical mechanical key however, it's hidden within the fob to keep it from being stolen. When the fob battery dies, it leaves an internal key blank that is able to unlock doors and trunks (and in some cases, start certain vehicles). Most people aren't aware of this, but they can avoid having to go to the dealership by simply replacing the fob battery. Most modern fobs have flat watch-style batteries that can be found at auto parts stores and hardware shops. It is important to use the correct kind of battery. A wrong type of battery can harm the electronic circuitry, causing the fob to fail much faster.
If you change the battery and discover that the issue persists it could be a sign that something else is going on in your vehicle. If you have an owner's manual, check to see if you can use a reset procedure to restore the fob's original programming. If that doesn't help you'll have to visit a dealer or an independent shop that specializes in vehicle security systems and fob programming.
Fobs could also fail due to faulty transmitter receivers. They are typically located on the dashboard or close to the steering wheel, and they send signals that allow you to unlock and start your car using the fob. You may have to move closer to your car to enable it.
A professional may need to open the case to replace the transmitter. A simple screwdriver can usually suffice, but certain fobs require a specific tool or equipment that can only be purchased at a dealership. It's best to have a qualified mechanic handle this job to ensure you don't damage the fob or injure yourself.
Reprogramming the Key
Most of the time, a key fob that isn't working simply needs a fresh battery. Since these batteries are inexpensive and readily available in pharmacies and home improvement stores, it's the ideal first step before buying a new car key fob.
Alternately, repair car key fob might be able to program the fob by following the steps. This process can vary between automobiles, so consult your owner's guide and research the model you have. A key fob may require that the ignition switch be turned on while programming. One key fob could require the key to be inserted several times.
The basic procedure is simple. First, make sure the new battery is firmly in place. Close all doors except the driver's door. This will ensure that the new key fob is communicating with the vehicle in a proper manner. Then, put 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 towards the receiver of the transmission. It is usually located on the front, above the mirror. The key will signal to the vehicle within a short amount of time that it's being programmed. This can be accomplished by cycling the door locks or by emitting an audible chime. This process can be tricky so it's essential to pay attention to the timing and to not over-press the key button.
If the key fob still doesn't work try reprogramming it with new batteries. If the problem persists you may want to visit your local dealer or locksmith. A professional will have all the tools and equipment required to reprogram your car's fob, or even create a brand new one, if required.
Genesky says he's able to program newer fobs between $200 and $250, depending on the vehicle. Genesky has experienced European models rejected due to the fact that they don't have the equipment required. Fortunately, many aftermarket fobs can be programmable however it's best to check with a car dealer first to find out what their price is.
How do I get a brand new fob
If your key fob is beyond repair, you may need to get an alternative. Depending on the make and model, a dealership or an auto locksmith may be able to assist. The dealership will likely be the most expensive alternative for replacing a fob however, they'll have all the required tools and software to program your car correctly. Many independent locksmiths provide a new car key fob at a much lower price.
Before you decide to purchase an entirely new device it's a good 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 is also recommended to check your owner's guide and warranty information to determine whether you are eligible for a replacement fob for your key. If your car is still under warranty or you have a car insurance policy or auto club membership that includes bumper-to-bumper coverage, you may be eligible to receive a reimbursement for the cost of the new fob.
Finding the right location to purchase the fob you need can be difficult. If you own a new vehicle and you want the security with knowing that your key fobs are in good working condition, you might be better off visiting the dealership to get this service. If you're looking for an option that is more affordable it is possible to find a locksmith independent who can offer the same services for a significantly lower price.
If you aren't comfortable handling this type of work on your own, a professional locksmith may be a great option. They are certified and equipped to repair or replace the majority of car key fobs, and they can often complete the task quickly. In addition, a locksmith will often visit your home or office to do the job which can be extremely practical for some. They can even cut and program keys on-site in case you've lost keys, which is great for those who do not want to leave their cars unattended.