Car Key Fob Repairs
Today's key fobs are more than just a way to 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 have flat-watch-style batteries that are easy to replace at home. It is possible that a simple reset will bring your fob back to life.
Battery Replacement
A dead battery is the main cause of a key fob not working. It's a simple solve and is worth a try before you spend money on a replacement fob. Simply take your car to a local auto parts store or a hardware retailer that carries button cell batteries and purchase the replacement. You can also consult your owner's guide (or YouTube for videos explaining how to replace the battery) to find specific instructions on how to open and replace the battery inside your fob.
You'll need to gently pull off the sides of many fobs to reach the battery. It's usually a screwdriver or some other tool equipped with a thin, flat blade. You can wedge your tool into a notch at the bottom of the key fob. You might also want to keep an eye for tiny pieces that could break loose as you work.
Install the new battery in the same way you removed the old one. Make sure that the positive (+) side is facing upwards towards the buttons, and that the negative (-) side of the battery is aligned correctly with the marks inside the battery compartment of your fob.
Test the fob to see if it works by pushing a button. If it fails, it may be a problem with your car that needs to be repaired or replaced by a specialist.
Some key fobs are difficult to open and their contacts may be fragile and easily corrosion-prone. In these situations the best choice is to speak with a specialist or a dealer. If you need to replace batteries, you should be gentle and follow the specific instructions in the owner's manual. You may be able find an identical battery at a big-box store or discounter, but make sure you read the owner's manual to ensure it's compatible with your vehicle.
Replacing the Internal Key
The majority of key fobs have a physical mechanical key however, it's hidden within the fob to prevent thieves. When the fob battery dies it leaves behind a blank internal key which can open doors and trunks (and in some cases start certain vehicles). The majority of people don't realize they can save a trip to a dealership by replacing the fob's batteries. The majority of modern fobs utilize flat watch-style batteries that are easy to find at hardware stores and auto parts shops. Using the correct type of battery is crucial, however. A bad battery can cause damage to the circuitry and lead to the fob's failure much sooner.
If you change the battery and discover that the issue persists, it could be a sign something else is going on with your car. Check your owner's manual to see if there's a reset procedure that can bring the fob back to the factory program. If this doesn't help then you'll need 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. These are usually located close to the steering wheel or in the dashboard. They transmit signals that enable you to unlock your car and begin it using the fob. You may have to move closer to the car to enable it.
It may be required for a professional to remove the case of the fob to replace the transmitter. A simple screwdriver is usually enough to work, however certain fobs require a special tool or equipment that can only be found at a dealership. It's best to have a qualified mechanic do this job so that you don't break the fob or hurt yourself.
Reprogramming the Key
A key fob that is not functioning simply requires a new battery. Because they are cheap and readily available in pharmacies and home improvement stores, this is an excellent first step prior to purchasing an entirely new car key fob.
You can also re-program your key fob on your own if you follow the steps below. This procedure can differ between automobiles, so read the owner's manual and study the specific model of your vehicle. One key fob could require that the ignition be switched on when programming. Another may require the key to be inserted and removed several times.
The basic procedure is simple. First, ensure that the new battery is firmly in place. Then, sit in the driver's seat and shut all doors, excluding the driver's side door. This will ensure that the new key fob is communicating with the vehicle correctly. Put the old key in the ignition, turn it ON but do not start the engine. Then, press the lock button on the fob, while making sure to point it towards the transmission receiver, which is typically situated on the front of the car above the mirror. In a short period of time the key will announce to the vehicle that it's been programmed by turning off the doors' locks or emitting the sound of a chime. This procedure can be difficult and it's crucial to be attentive to the timing and not to over-press the key button.
If the key fob doesn't function after reprogramming, you can try using a new battery. If the issue isn't resolved, a visit to your car dealer or a locksmith is a good idea. A professional will have the tools and programming equipment needed to reprogram your car's fob, or create the key if required.
Genesky says he's able to program newer fobs for $200 to $250, based on the vehicle. He's experienced European models turned away because there isn't the equipment required. Fortunately, most aftermarket fobs are programmable however it's recommended to consult the dealer of your choice first to see what the cost is.
How do I get a new fob
If your key fob is simply beyond repair, you might require an entirely new one. Depending on the make and model, an auto locksmith or a dealership may be able help. Related Homepag is likely to be the most expensive alternative for replacing a fob, but they will also have all the required tools and software to programme your vehicle properly. Many independent locksmiths offer a brand new car key fob for an affordable price.
It is a good thing to try to reset your current device before you make the decision to purchase another one. Your owner's manual should outline the proper procedure for reset, which is usually just pushing a few buttons that restores it to factory programming.
You should also look over the owner's guide and warranty information to determine whether you are eligible for a replacement fob for your key. If your car's warranty is still active or you have an auto club or insurance policy that covers bumper-to-bumper you could qualify for a reimbursement on the cost of replacing the fob.
Getting a fob is easy enough however, finding the right location to do it can be tricky. If you have a relatively new car and want the assurance with knowing that your key fobs are in good working order, you may be better off going to the dealership for this service. However, if you're looking for a more affordable option it is possible to find a locksmith who is independent who can provide the same service at a much lower cost.
A locksmith who is professional is a good option for those who aren't comfortable with this kind of work. They're trained and equipped to change or reprogram keys for cars of all types and do it quickly. Additionally, locksmiths will often visit your office or home to do the job which can be extremely practical for some. They can cut keys and program them on the spot if you've lost them. This is ideal for those who do not want to leave their car without a key.