Car Key Fob Repairs
Key fobs of today are more than just a way to unlock and start cars. However, that added complexity can add up to costly repairs when one of them fails.
It's good to know that most fobs are powered by flat watch-style batteries, which can be replaced at home. It is possible that a simple reset can make your fob work again.
Battery Replacement
The most frequent reason why a key fob stops working is because of a dead battery. It's easy to solve and is worth a try before you purchase the replacement fob. Take your car to an auto parts store or a hardware retailer that sells button cells and choose an alternative. You can also consult your owner's guide (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to replace and open the battery inside your fob.

You'll have to gently pull away the sides of the majority of fobs to reach the battery. You'll require a small flat-bladed screwdriver, or another tool with a thin blade. You can wedge your tool into a slot on the bottom of the key fob. You may also want to keep an eye out for small pieces that could be loosened while working.
Once you have your new battery, insert it in the same manner that you removed the old one. The positive (+) side should be facing the buttons and the negative (-) the marks on the compartment for the battery.
Test the fob to see if it works by pushing the button. If it isn't working, there may be a problem with your vehicle that needs to be repaired or replaced by a specialist.
Some key fobs require special tools to open, and the contacts inside could be fragile and susceptible to corroding. In these instances the best solution is to consult a car specialist or a dealer. If you're looking to replace the battery, make sure to be gentle and follow the instructions that are specific to the owner's manual. You may be able to locate the same battery at a big-box store or discounter, but be sure to check your owner's guide to ensure it's compatible with your vehicle.
Replace the internal key
Most key fobs contain an actual mechanical key that is hidden within the fob to stop thieves from getting. If the battery of the fob fails it will leave behind a blank internal key which can open doors and trunks (and in some cases start certain vehicles). Most people don't realize they can avoid a trip to a dealership by recharging the fob batteries. The flat watch-style batteries are used in most modern fobs. These batteries are easily located at auto parts stores and hardware stores. Choosing the right type of battery is essential however. A wrong battery can harm the circuitry and cause the fob's failure earlier.
If the problem persists after replacing the battery, it may be a sign that there is something else going on with your vehicle. Check your owner's manual to determine if you have a reset procedure that can restore the fob's factory programming. 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 faulty transmitter receivers. They are usually found close to the steering wheel, or on the dashboard. They transmit signals to enable you to unlock your car and start it with the fob. If you're having to get closer and closer to your vehicle to get it to work, there's a high chance the transmitter is failing.
It could be necessary for a professional to access the case of the fob in order to replace the transmitter. A simple screwdriver can usually suffice, but certain fobs require a special tool or special equipment that can only be found at a dealership. This job should be done by a certified mechanic to avoid damaging the fob as well as yourself.
Reprogramming the Key
A key fob that's not working might just need a new battery. These batteries are easily found in both pharmacy and home improvement stores and are inexpensive. This is a good way to start before buying an entirely new key fob.
You can also re-program your key fob on your own If you follow some basic 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 instance the key fob might require the ignition to be on while reprogramming it. Another might need the key to be removed and inserted repeatedly.
The basic procedure is simple. First, ensure that the new battery is 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 key fob can communicate with the vehicle in a proper manner. Then, place the old key back in the ignition and turn it on to the ON position, but do not start the engine. Press the lock button while aiming the fob toward the receiver for transmission. This is usually located on the left side, just above the mirror. Within a short time frame the key will signal to the vehicle that it's programmed by triggering the doors' locks or emitting a chime. This is a difficult process, so pay attention to the timing and don't press too hard the button.
If the key fob still doesn't work try reprogramming it with new batteries. If the issue persists then a visit to your car dealer or a locksmith should be considered. A professional will have all the tools and equipment needed to reprogram your car fob or design a new one, if required.
Genesky says that he can program newer fobs that range between $200 and $250, based on the model of vehicle. But he's had to turn away customers with European models because there's no equipment required. Luckily, the majority of aftermarket fobs can be programmable however it's recommended to consult a car dealer first to see what the cost is.
Finding a New Fob
If your key fob is beyond repair, you might need to purchase an entirely new one. 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 choice for a replacement fob but it will also have the tools and software needed to program your car properly. Many locksmiths in independent shops provide a new car key fob at the lower cost.
It's a good idea to try to reset your current device before you decide to buy a new one. The owner's manual should outline the correct reset procedure. It is typically 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 see whether you can obtain a replacement key fob. If your car's warranty is in good standing or you have an auto club or car insurance policy that covers bumper to bumper, you may qualify for a reimbursement of the cost of a replacement fob.
Finding a fob is simple enough however finding the best location to do it can be a challenge. You may want to go to the dealer for this service if are driving a brand new car and you want to be confident that your key fobs work properly. However, if you want a more affordable option it is possible to find a locksmith independent who can provide the same services for a lower cost.
A locksmith who is professional is a good option for those who aren't comfortable with this kind of work. g28 car keys are trained and equipped to reprogram or replace most types of car key fobs, and often, they can complete the task quickly. Locksmiths is also able to visit your office or home which is a great option for many. They can cut keys and program them on site if you've lost them. This is perfect for those who don't want to leave their car without a key.