Car Key Fob Repairs
Key fobs today do a lot more than simply unlock and start vehicles. This extra complexity can result in costly repairs if it breaks.
The good news is that most fobs use flat watch-style batteries that are easy to replace at home. You may even find that a reset will make your device work again.
Battery Replacement
The most frequent reason a key fob stops working is due to a dead battery. It's easy to solve and is worth a try before you spend money on an alternative fob. Simply take your car to a local auto parts store or hardware retailer that stocks button cell batteries and purchase an alternative. You can also consult the owner's manual (or, if you don't have one, YouTube is full of videos from people who show you how to do it) for specific instructions for opening and replacing the battery in the particular type of fob.
You'll need to gently pull away the sides of the majority of fobs in order to access the battery. You'll need a small, flat-bladed screwdriver or another tool with a small blade. You can wedge your tool into a notch at the bottom of the key fob. You may also want to be on the lookout for small pieces that could be loosened while working.
Insert the new battery the same manner as you removed the old one. Make sure that the positive (+) side is facing up toward the buttons, and that the negative (-) side of the battery is aligned with the markings inside the battery compartment of your fob.
Test the fob to see whether it functions by pressing a button. If it doesn't work, you might have an issue with your vehicle that requires a specialist to fix or replace.
Certain key fobs can be difficult to open and their contacts may be brittle and easily corrosion-prone. In these cases an expert in the field or the dealer will likely be the best choice. When replacing a battery be gentle and follow the owner's guide. You might be able find a similar battery at a discounter or big-box retailer however, you'll need to refer to your owner's manual to ensure that it matches your car.
Replace the internal key
The majority of key fobs have 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 behind a blank internal key which can open doors and trunks (and in some cases, even start certain cars). Most people don't realize they can avoid a trip to a dealership by replacing the fob batteries. The majority of modern fobs utilize flat watch-style batteries that are easy to find at auto parts stores and hardware shops. Using the correct type of battery is important however. A wrong battery can harm the circuitry and cause the fob's failure earlier.
If you change the battery and discover that the issue persists, it could be an indication that something else is happening with your vehicle. Check your owner's manual to determine if there's a reset procedure that will restore the fob to the factory program. If this doesn't help then you'll need to visit a dealership or an independent shop that is specialized in vehicle security systems and fob programming.
Fobs may also malfunction due to malfunctioning transmitter receivers. These are usually built into the dashboard or next to the steering wheel, and transmit signals that allow you to unlock and start your car using the fob. You may need to get closer to the car to get it to work.
A professional might need to open the fob's case to replace the transmitter. A simple screwdriver can usually accomplish the task, but some fobs have complex release mechanisms that require a specific tool or specialized equipment that is available only at a dealer. It's a good idea to have a certified mechanic handle this job to ensure you don't damage the fob or cause injury to yourself.
Reprogramming the Key
Often a non-functional key fob simply needs a fresh battery. Because they are cheap and readily available in pharmacies and home improvement stores, it's a good first step before purchasing the purchase of a new car key fob.
You can also re-program your key fob by yourself if you follow a few basic steps. The procedure may differ for different vehicles, so you should refer to the owner's manual and research your specific model. One key fob might require the ignition to be switched on when reprogramming. One key fob could require the key to be inserted multiple times.
The basic procedure is simple. Make sure the battery is securely in place. Close all doors, with the exception of the driver's door. key car repair will ensure the new fob is communicating with the vehicle properly. Then, put the old key back into the ignition and switch it to the ON position, but don't start the engine. Next press the lock button on the fob, while making sure to point it towards the transmission receiver, which is typically located on the front of the vehicle above the mirror. The key will inform the vehicle within a short period of time that it is being programmed. This can be accomplished by cycling the door locks, or emitting an audible chime. This process can be tricky and it's crucial to be aware of the timing and to not over-press the key button.
If the key fob still doesn't work try reprogramming it using new batteries. If the issue isn't resolved you should visit your car dealer or a locksmith is a good idea. A professional will have the tools and equipment to reprogram your car's fob or make the key if required.
Genesky says he's able to program newer fobs at around $200-$250, based on the vehicle. However, he's had to turn away customers with European models due to the fact that they don't have the costly equipment they require. Fortunately, most aftermarket fobs can be programmed but it's always best to talk to a car dealer first to determine what the cost is.
Getting a New Fob
If your key fob is beyond repair, you might need to get an alternative. Depending on the brand and model, the dealer or an auto locksmith might be able to assist. The dealership is likely to be the most expensive option for a fob replacement however, they'll have the necessary tools and software to program your car correctly. Many independent locksmiths provide a new car key fob for the lower cost.
Before you decide to purchase a new key fob it's an excellent idea to try resetting your current one. The owner's manual will outline the proper procedure for reset which is typically pushing a few buttons that restores the factory settings.
It's an excellent idea to read your owner's manual as well as warranty information before you decide which place to go for an replacement fob for your key. If your car's warranty in good standing or you have an auto club or car insurance policy that covers bumper to bumper you could qualify for a reimbursement on the cost of a replacement fob.
Finding the right place to get a fob can be a challenge. If you own a new vehicle and you want the security with knowing that your keys fobs are in good condition, you might be better off going to the dealership for this service. If you're looking for a more affordable alternative, it is possible to find a locksmith that will offer the same service at a lower price.
A professional locksmith is a great option for those who aren't comfortable with this kind of work. They are skilled and equipped to repair or replace most types of car key fobs and often, they can do it quickly. Additionally, locksmiths will often visit your home or office to do the job which can be extremely useful for certain people. They can also cut and program keys on the spot if you've lost keys. This is ideal for those who don't want to leave their vehicle without a key.