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Key Fob Replacement and Repair

Modern car key fobs are used often and are often misused. Sometimes, an easy repair or replacement is all that's needed to make them work again.

Most fobs run on a flat watch-style batteries. This is easily found in auto parts and hardware stores. However, before calling an expert, try a few DIY fixes!

Dead Key Fob Batteries

The key fob battery powers the remote function of your car. It also, with push-to-start vehicles, allows it to start your engine. This is why it is essential to keep an efficient, functioning battery. A dead key fob can be an issue when you're on-the-go. A simple, inexpensive replacement can fix the issue quickly.

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

You can often find a new key fob battery in the auto parts section of a large box store or on the internet. The majority of these batteries are CR2032 and CR2025 and are available in packs of 2 or more. Make sure to consult your owner's manual prior to you decide on the best battery. Some cars require a particular size or type of battery that's not always readily available at big-box retailers Be sure to know the right specs before you purchase.

Typically the battery is placed on the back of your key fob. It is removed by tearing the case open with an abrasive screwdriver with a flat blade. The battery will look similar to tiny coins and will be labeled according to its size. Be sure to note which way the plus and minus symbols are placed to ensure that the new battery is properly placed. Once the battery replacement is inserted, gently snap both pieces of the fob together. Then test the buttons to make sure they function.

If your key fob doesn't work after replacing the battery, it may have been deprogrammed. In this case you'll have to contact an expert locksmith, which will cost a little more than simply replacing the battery in your key fob.

YourMechanic's experienced mechanics can repair your key fob if it is damaged or if the battery is dead. Schedule an appointment to see all of the services we offer in your region.

Weak Signals

If you find that your key fob isn't responding to buttons on the remote, this can be an indication of a problem with signaling. Your car and key fob are dependent on radio signals to communicate, and weak or inconsistant signals can cause poor performance and range.

One of the first things you should examine is whether your fob's battery is low since this can greatly affect the sensitivity of your signal. It's also advisable to reset the fob's settings, which can help to get the same response from the broken car key repair. The process will vary from vehicle to vehicle. The owner's manual or a call to the manufacturer's support number is your best guide.

Other factors, including interference from other devices that operate on the same frequency, can also affect weak signals. Other key fobs as well as wireless communication devices can interfere with the RF (radio-frequency) signals your key fob sends to connect to the receiver of your vehicle.

Damage to your keyfob's physical structure can also affect the transmission of an RF signal, resulting in lower performance and less range. A blown fuse, a damaged or cracked buttons or a bent case could interfere with the transmission of signals and cause the remote to not respond.

You can attempt to fix the problem by resetting the fob's settings, or by replacing the battery. However, if your fob is old and worn out, it's probably time to replace it completely.

Lastly, don't forget that if you have an extra key fob that comes with your vehicle, this can be used as a replacement for the primary remote key repairs in the event that it starts to fail. It's a good idea to try this method to determine if it resolves the issue prior to investing in a new one. In this case it could be the right the right time to contact a professional auto-locksmith. They can determine the cause and suggest the best method of action.

Physical Damage

It's not uncommon for key fobs to have problems from time to time. The majority of these problems aren't complicated or serious and can be resolved by following a few easy steps. It's a good idea to keep spare batteries or a different fob in case your key ceases to work.

The most common reason for car keys not working is a dead battery. These tiny devices rely on tiny lithium-ion coin or button batteries to function. These are easily replaced and can be found at most pharmacies, grocery stores and places which sell electronic items. You can open your fob's shell with a flat head screwdriver and gently pull out the battery. Ensure that it is not damaged or loose, and then simply pop in a new battery. Most fobs utilize CR2032 batteries. However, yours might require an alternative kind.

If your device loses pairing, it may also cease to respond to buttons. This can happen due to a variety of reasons, including changing the batteries, but is typically a simple issue to get an auto Locksmith or your local dealer to resolve.

You can try this trick to fix your fob when none of the other methods work: Disconnect the battery from both the fob and the car for around ten minutes, then reconnect them in a reverse order. This could cause the system to reboot, and in certain cases it can fix the issue without further steps.

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

If none of the troubleshooting steps above are helpful you, it may be necessary to replace your key fob. If it's been dropped or tripped on, or subjected to other extreme environmental conditions, it may be beyond repair and may require an upgrade. If that's the case, make sure to search to find a bargain before making a final decision.

Lost Fob

Even with the best of care keys to cars will occasionally stop working. If yours is lost, it could be very expensive to replace it--especially if you don't have a spare. "You could end up paying $50 or more to get an equivalent replacement from the dealer and then have it programmed, plus an additional mechanical backup which will cost at most another $100," says Mel Yu, an automotive analyst with Consumer Reports.

A weak battery is one of the most frequent reasons for a keyfob's stop working. If you know how to change the battery, or if your owner's manual has instructions, you can try it yourself. If that doesn't work, you'll need to contact an expert.

A locksmith can be capable of helping you locate your lost fob or get it replaced. They'll also have a good idea of the reason why your fob stopped functioning in the first place. If your vehicle is an older model that has no built-in smart technology it is possible to save money by finding the key number plate that is on your existing mechanical backup key (it's typically hidden behind a decorative keychain) and recording it in a secure location, such as your wallet or on your phone. If you're in need of reprogramming the key fob of your car the locksmith can perform the task more easily.

If your current key fob is a smart key of the present and you want to change it, you'll need to go to a locksmith or a dealership to deprogram it before getting a new one made and this can be more expensive than replacing it. Modern key fobs are secured by encryption using rolling-codes, which prevents thieves from getting access to the car. This means that the locksmith must have an exclusive programming tool that only the car manufacturer is equipped with, which adds to the overall expense.

In most instances, you'll need to pay for the entire service at once, which includes any costs to reprogram the new key fob key fob repair near me repair (my review here). Depending on the vehicle it could cost anywhere from a mere $20 at some shops to $200 or more at a dealership for cars.