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How To Make A Profitable Fob Key Repair Even If You're Not Business-Savvy
Key Fob Replacement and Repair

Modern car key fobs are utilized a great deal and are frequently abused. Often just a simple repair or replacement is all you need to make them work again.


The majority of fobs are made with flat-watch-style batteries that are easy to find in hardware stores and auto parts retailers. Before calling a professional, do a few DIY fixes.

Dead Key Fob Battery

The battery in the key fob powers the remote function in your car. It also, with push-to start vehicles, permits it to start your engine. It is therefore essential to keep a functioning, healthy battery. When you're on the go and your key fob is not working, it could be a major issue. The good news is that a simple, inexpensive replacement is able to fix the issue quickly.

The most obvious indication that a battery on a key fob is dying is the decrease in signal strength and range. You might also notice that the buttons on the fob don't function or require any effort to be activated.

A new key fob can be found in the auto part section of a big retailer or online. Typically, these batteries are CR2032 and CR2025 and are sold 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 stores So, make sure you know the specifications prior to you buy.

Typically the battery is placed on the back of your key fob and can be removed by prying the case open using the flat-blade screwdriver. The battery will appear like tiny coins and be identified according to its size. Be sure to note which way the plus and minus symbols are positioned to ensure that the battery you are replacing is properly placed. After the replacement battery is placed in the fob, gently snap both pieces of the fob together and test all of the buttons to make sure they function.

It's important to note that when your key fob is unable to not function, even after a battery replacement, it might have been deprogrammed. In this situation it is likely that a locksmith will be required to assist. car key repair cost will cost more than just replacing the battery of your key fob.

YourMechanic's experienced mechanics can repair your key fob if it's damaged or the battery has died. Make sure to look over the range of services we offer in your area and schedule an appointment today!

Weak Signals

If your key fob doesn't respond to the buttons on the remote it could be a sign that the signaling is not functioning properly. Radio signals are used to transmit information between your car and the key fob. Weak or inconsistent radio signals can lead to low performance and limited range.

One of the first things you should check is whether or not the battery of your fob is depleted, as this can significantly affect the sensitivity of your signal. It's also advisable to reset the settings of your fob that can help get the same response from the car. The process will vary from vehicle to vehicle. The owner's guide or a phone call to your manufacturer's support line is your best resource.

Other factors, including interference from other devices that operate at the same frequency can also affect weak signals. Other key fobs and wireless communication devices may interfere with the radio frequency (radio-frequency) signals that your key fob transmits to the vehicle's receiver.

The physical damage to your keyfob can affect the transmission of an RF signal, leading to lower performance and less range. A blown fuse, a damaged or cracked button, or a bent fob case can affect the transmission of signals, causing the remote to not respond.

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

Don't forget to use the spare remote that came with your car if your primary remote starts to fail. Try this method first to see if it can fix the problem before purchasing an entirely new remote. If not, it could be the right moment to call an expert auto locksmith. They will be able to identify the issue and suggest the best course of action.

Physical Damage

It's not uncommon for key fobs to experience problems from time to time. The majority of these problems aren't complicated or serious and can be resolved with a few simple steps. It's important to have spare batteries or another fob available in case one of your keys ever fails to work.

A dead battery is the most common cause of a car keyfob not working. These tiny devices depend on tiny lithium-ion coin or button batteries to function. They can be replaced and can be purchased at most pharmacies and grocery stores. Open the fob's case with a screwdriver with a flat head, and gently pry out your existing battery. Make sure it's not damaged or loose and then put in an alternative battery. Most fobs use CR2032 batteries. However, yours may require an alternative kind.

Your fob could also stop responding to the buttons after losing its connection with your vehicle. This can happen due to a number of factors, such as changing the batteries, but is usually easy for an auto Locksmith or your local dealer to resolve.

If none of the solutions above work, try this trick: disconnect the batteries from the car and the fob for a short period of time and then connect them in the opposite order. This can force the system to reboot, and in some cases it can fix the issue without any other steps.

While you're testing the fob, be sure to keep it away from water and other possible dangers. Fobs can be quite durable, but it's important to treat it with care when you want it to last as long as possible.

If none of the troubleshooting techniques above help you, you may have to replace your key fob. If it's been dropped or tripped over, or exposed to other harsh environmental conditions it could be damaged beyond repair and requires an upgrade. Look around for the most competitive price.

Lost Fob

Even with the best of care keys to cars may fail to function. It's costly to replace yours in the event that you lose it and especially if you do not have an extra. "You might end up paying $50 or more to purchase an alternative from a dealer and get it programmed, and a new mechanical backup, which will cost at most another $100," says Mel Yu who is an automotive analyst at Consumer Reports.

A weak battery is one of the most frequent reasons for a keyfob to cease to function. You can try changing the battery yourself when you know how, or refer to the owner's manual. If this doesn't work, you'll need to contact an expert.

A locksmith will be capable of helping you locate the lost fob or have it replaced. They'll also have an idea of the reason why your fob was not working in the first instance. If your car is a model older than the one you own and has no built-in smart technology, you can save some money by finding the key number plate on your existing mechanical backup key (it's usually hidden behind a keychain ornament with a decorative design) and recording it in a safe place--such as your wallet or on your phone. This will make it easier for a locksmith to reprogram a new key fob to your car in the event that you require it.

If your key fob is an old smart key, it'll need to be deprogrammed by a locksmith or a car dealer. This could cost more than just replacing it. The reason is that modern key fobs employ rolling-code encryption to prevent thieves from gaining access to the car. That means that the locksmith needs to have an exclusive programing tool that only the vehicle manufacturer has, which adds to the overall expense.

In the majority of cases, you'll need to pay for the entire service at once, which includes the cost of programming the new key fob. Depending on the vehicle the cost can range from a mere $20 at some shops to $200 or more at a car dealership.

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