Car Key Fob Repairs
Key fobs today do a lot more than simply unlock and start vehicles. However, the added complexity could result in costly repairs in the event that one of them malfunctions.
The positive side is that many fobs use 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 most common reason for the fob's key not working. It's a simple fix and worth trying before you invest in the replacement fob. You can buy the new button cell at a local auto part store or hardware retailer in the event that you already have one. You can also refer to your owner's manual (or in the event that you don't have one, YouTube is full of videos from people who show you how to do it) for specific instructions on opening and replacing the battery on the specific type of fob you have.
You'll need to gently pull away the sides of the majority of fobs to reach the battery. You'll need a small flat-bladed screwdriver or another tool with a thin blade. It's a good idea to look for a notch along the bottom of the fob that you can use to put your tool in between. It is also advisable to keep an eye out for tiny pieces that may come loose while you work.
Once you have the new battery, insert it in the same way that you removed the old one. The positive (+) side should face the buttons and the reverse (-) the marks on the compartment for the battery.
Check the fob to determine if it works by pushing the button. If it doesn't, there could be an issue with your vehicle that requires a specialist to fix or replace.
Some key fobs require special tools to open, and the contacts inside could be fragile and susceptible to corroding. In these situations the best choice is to talk to a expert or dealer. If you need to replace a battery, try to be very gentle and adhere to the specific instructions in the owner's manual. You may be able to locate the same 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.
Replace the internal key
Most key fobs contain a physical mechanical key that is hidden within the fob to stop thieves from getting. If the battery inside a fob dies and the key is discarded, a blank one is left behind, which can be used to open doors and trunks. In some instances, this key can even start certain vehicles. A majority of people do not realize that they can avoid a trip to a dealership by replacing the fob batteries. The flat watch-style battery is found in most modern fobs. These batteries are easily found at hardware stores and auto parts stores. Choosing the right type of battery is crucial however. The wrong type can damage the circuitry and cause the fob's failure much sooner.
If the problem continues to persist after replacing the battery, it could be a sign that there is something else going on in your vehicle. If you have an owner's guide look for you can use a reset procedure to restore the fob's original programming. If this doesn't work then you'll need to go to a dealership or an independent shop that specializes in vehicle security systems and fob programming.
Fobs can also malfunction due to malfunctioning transmitter receivers. These are usually located 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. You may have to move closer to the car to get it to work.
A professional might have to open the fob's case to replace the transmitter. A simple screwdriver can usually suffice, but some fobs require a specialized tool or special equipment which can only be found at a dealership. This is a job that should be performed by a certified mechanic to ensure that the fob is not damaged and yourself.
Reprogramming broken car key repair that is not working might just need a new battery. These batteries are readily available in home improvement and pharmacy stores and are inexpensive. This is a good way to start before buying an entirely new key fob.
You may also be able to reprogram the fob by following the steps. The procedure may differ for different vehicles, so it is recommended to consult your owner's guide and research the model you have. For example, one key fob may require that the ignition be turned on while reprogramming it. Another might need the key to be inserted and removed several times.
The general process is simple. Make sure that the battery is securely in place. Then, get into the driver's seat and close all doors, excluding the driver's side door. This will ensure that the new fob is communicating with the vehicle properly. Put the old key in the ignition and turn it on 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 left side, just above the mirror. Within a brief time the key will announce to the vehicle that it's being programmed by triggering the doors' locks or generating a chime. This is a challenging procedure, so pay attention to the timing and avoid pressing too hard the button.
If the key fob doesn't function after reprogramming, you can try using a new battery. If the problem persists you may want to visit your car dealer or locksmith. A professional will have all the tools and equipment needed to reprogram your car's fob or design a new one if needed.
Genesky says he's able to program newer fobs at around $200-$250, based on the vehicle. But he's had to turn away customers with European models because there's no equipment required. Fortunately, most aftermarket fobs can be programmed, but it's always best to talk to an auto dealer first to see what the cost is.
A New Fob
If your key fob is simply beyond repair, you may need to purchase a new one. Depending on your vehicle's make and model, an auto locksmith or a dealership may be able help. The dealership will likely be the most expensive option for a replacement fob, but they will also have all of the necessary tools and software to program your vehicle correctly. If you're looking for a cheaper option, a number of independent locksmiths can provide you with new car keys at a lower price.
Before you purchase a new fob, it is an excellent idea to try resetting your current device. The owner's manual should provide the correct reset procedure. This is usually the result of a series of button presses that restores the factory programming.
You should also look over your 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 in effect or you have an auto club or insurance policy that covers bumper-to-bumper, you may qualify for a reimbursement on the cost of a replacement fob.
Finding the best location to purchase a fob can be difficult. You might want to go to the dealer for this service if have a newer vehicle and want to be confident that your key fobs are functioning correctly. 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 lower cost.
A locksmith professional is a good option if you're not comfortable doing this kind of work. They are trained and equipped to repair or replace most types of car key fobs, and often, they can do it quickly. Additionally, locksmiths can often come to your home or office to do the job, which can be very practical for some. They can even cut and program keys on-site when you've lost keys, which is great for those who prefer not to leave their cars in the dark.