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Here's A Little-Known Fact About Fob Key Repair
Key Fob Replacement and Repair

Key fobs on modern automobiles are very efficient and are subject to an awful amount of abuse. Often a simple repair or replacement is all you need to make them work again.

Most fobs run on a flat watch-style battery, which is easily found in hardware and auto parts stores. Before calling in a professional, you can do some of the DIY fixes.

Dead Key Fob Battery

The key fob's battery powers the remote you have in your car and, in push-to-start vehicles it will start your engine. Therefore, it is critical to maintain an active, healthy battery. When you're out and about and your key fob is not working, it can be a huge problem. The good news is that a simple, affordable replacement can be made to fix it in a short time.

The loss of range and signal strength are the most commonly observed indications that a battery on a keyfob is dying. It is also possible to notice that the buttons on your key fob aren't working or require more effort.

You can often find an updated key fob battery in the auto parts section of a big box retailer or online. The majority of these batteries are CR2032 and CR2025 and are available in packs of 2 or more. Consult your owner's guide before you decide on the best battery. Some cars require a particular size or type of battery that's not always available at big-box retailers, so be sure to be aware of the correct specifications before you purchase.

Typically the battery is situated on the back of your key fob and is removed by tearing open the case with the flat-blade screwdriver. The battery will look similar to a small coin and will be labeled based on its size. Make sure to note the orientation of the plus and minus marks so that you can insert the battery correctly. After the battery has been replaced then gently snap the two pieces of the fob back together, and test the buttons.

It's worth noting that, when your key fob is unable to stop functioning even after battery replacement, it could have been deprogrammed. In this instance, you'll need to contact an expert locksmith and it will cost you some more than replacing the battery of your key fob.

YourMechanic's experienced mechanics can repair your key fob in the event that it is damaged or if the battery has failed. Schedule an appointment to see all of the services we offer in your local area.

Weak Signals

If your key fob does not respond to the buttons on the remote it could be a sign that the signaling is not working properly. Your car and key fob rely on radio signals to communicate, and weak or inconsistent signals could result in poor range and performance.

The battery level of your fob is a good idea, since it can have a significant impact on signal sensitivity. Resetting the settings of the fob can also help restore a more consistent response. The procedure will differ from vehicle to vehicle. The owner's guide or a phone call to your manufacturer's support line is your best resource.

Other factors can contribute to weak fob signals, for example, interference from other devices operating on the same frequency as your key fob. Power lines and other key fobs wireless communication devices, and even cell networks can disrupt the RF (radio frequency) signals that your key fob utilizes to connect to the receiver in your vehicle.

Additionally, physical damage to your key fob can also interfere with the transmission of RF signals, which can result in poor range and performance. A blown fuses, a broken or cracked button or a bent case on the fob may affect the transmission of signals and cause the remote not to respond.


You can try to fix the problem by resetting the fob's settings, or by replacing the battery. If your fob is damaged, it's time to replace it altogether.

Lastly, don't forget that if you have an extra key fob which comes with your vehicle, this can be used instead of the primary remote if it begins to fail. You should test this option first to determine if you can solve the issue prior to purchasing an entirely new remote. If not, this might be the perfect time to consult an experienced auto locksmith. They will be able diagnose the problem and recommend the best course of actions.

Physical Damage

It's not common for key fobs to encounter issues from time-to-time. Luckily, the majority of these problems are not complicated or a major issue and can be solved by following a few simple steps. It's also a good idea to have spare batteries or an additional fob in case one of your keys ever stops working.

A dead battery is the most common reason why a key fob in a car is not working. These tiny devices are powered by lithium-ion buttons or coin cell batteries. These batteries are easily replaceable and can be found in most pharmacies and stores. You can access the fob's case using a screwdriver with a flat head and gently pry out the existing battery. Replace the battery, ensuring that it's not damaged or loose. The majority of fobs use CR2032 batteries, but yours might require a different kind.

The fob may not be responding to buttons when it loses its pairing with the car. This could be due to many factors including changing the batteries. However, an auto Locksmith or a local dealer can usually repair the issue.

If none of the strategies above work, try this trick: disconnect the battery from the car and fob for a short period of time and then reconnect them in reverse order. This can force the system to restart and in some cases it can fix the issue without further steps.

Keep the fob out of water or other sources of damage while you are experimenting. The fob is a durable device but you need to treat it with care to ensure that it lasts as long as it can.

If none of the troubleshooting procedures above are helpful you, you may have to replace your key fob. If it's been thrown around, trodden on or subjected to other extreme environmental conditions, it could be damaged beyond repair and in need of a replacement. Find the most competitive price.

Lost Fob

Even with the best of care keys to cars will occasionally stop working. If you lose yours, it could be very expensive to replace it, especially when you don't have a spare. "You might end up paying $50 - $100 for a replacement and getting it programmed by the dealer, and mechanical backups that could cost another $100," says Mel Yu an automotive analyst at Consumer Reports.

car remote key repair near me is among the most common reasons for a keyfob's device to stop working. You can try replacing the battery yourself if you know how or consult your owner's manual. But if that doesn't fix the problem, it's time to get help from an expert.

A locksmith can help you replace or find your lost key fob. A locksmith will likely know why your fob stopped functioning in the first place. If your car is old and does not include smart technology however, you can save money by recording the key number plate from your mechanical backup key. It's typically hidden behind a keychain with an ornamental design. This will make it much easier for the locksmith to reprogram a new key fob to your car if you ever need to do so.

If your key fob is an old smart key, it'll need to be deprogrammed by a locksmith or dealer. This could cost more than simply replacing it. Modern key fobs are protected by rolling-code encryption which stops thieves from gaining access to the car. This means that locksmiths need an exclusive programming tool that only the car manufacturer is equipped with, which adds to the overall cost.

In most instances, you'll have to pay for the entire service at once, which includes the cost of programming a new key fob. This could range from around $20 in certain stores to more than $200 at car dealerships, based on the car.

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