Key Fob Replacement and Repair

Key fobs on modern automobiles do a lot of work and are subject to a lot of abuse. Sometimes, a simple repair or replacement is all that's required to restore them to working good working order.

Most fobs utilize flat-watch-style batteries that can be found in hardware stores and auto parts stores. Before calling in a professional, you can do some DIY fixes.

Dead Key Fob Battery

The battery in the key fob powers the remote key repair function in your car. It also, in conjunction with push-to-start vehicles it allows it to start your engine. Therefore, it is critical to maintain a healthy, working battery. When you're on the move and your key fob is not working, it can cause a lot of trouble. A simple, affordable replacement will fix the problem quickly.

The loss of range and signal strength are the most common indications that a battery on a keyfob is failing. You might also notice that the buttons on your key fob aren't working or require more effort.

You will often find an updated key fob battery in the auto parts section of a big box retailer or online. Typically, they are CR2032 or CR2025 batteries that are sold in packs of two or more. Make sure to consult your owner's manual prior to you decide on the best battery. Certain cars require a certain size or type of battery, which isn't always readily available at big-box stores. Be sure to research before purchasing.

Typically, the battery is located in the back of your key fob. It is removed by tearing the case open using an abrasive screwdriver with a flat blade. The battery will look similar to an ordinary coin, and it will be identified according to its size. Be sure to note the orientation of the plus and minus signs to ensure that you put the new battery in the correct place. After the battery has been replaced, gently snap the two pieces of the fob back together. Then test the buttons.

It's important to note that in the event that your key fob continues to stop functioning even after a battery replacement, it could have been deprogrammed. In this instance you'll need to call an expert locksmith and it will cost you some more than replacing the battery in your key fob.

YourMechanic's experienced mechanics can repair your key fob in the event that it's damaged or the battery is dead. Make sure to look over all of our services available in your region and book an appointment today!

Weak Signals

If you notice that your key fob isn't responding as you would expect to the buttons on the remote key repairs, this can be a sign of a problem with signaling. Radio signals are used to transmit information between your car and key fob. Inconsistent or weak radio signals can result in poor performance and a limited range.

One of the first things to check is whether or not your fob's battery is low since this can greatly affect the sensitivity of your signal. It's also advisable to reset the settings on your fob that can help get a more consistent response from the car. The procedure differs from vehicle to vehicle, so your owner's manual or a phone call to the help line of the manufacturer will likely be your best resource here.

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

The physical damage to your keyfob can affect the transmission of RF signal, which can result in poor performance and range. A blown fuse, a damaged or cracked button, or a bent fob case can all affect the transmission of signals, causing the remote to not respond.

You can attempt to solve the issue by resetting your fob's settings or by replacing the battery. If your fob has become old and worn, it may be the right time to replace it.

Don't forget to remember that if you have a spare key fob that comes with your vehicle, this can be used instead of the primary remote if it starts to fail. It's worth trying this solution to determine if it resolves the issue prior to investing in an entirely new one. If not, it might be the perfect moment to call an expert auto locksmith. They will be able to identify the issue and recommend the best way to proceed.

Physical Damage

Key fobs may have issues occasionally. Most of these issues are not complex or serious and can be resolved by following a few easy steps. It's recommended to keep spare batteries or another key fob in the event that one of your keys ever ceases to function.

The most frequent reason for a mobile car key repair key fob not working is an inactive battery. These tiny devices are powered by lithium-ion button or coin cell batteries. They are easily replaced and can be found at most pharmacies and stores. Open the fob's case with an screwdriver that is flat and gently pull out the battery you have. Check to see if it's loose or damaged and then insert an alternative battery. Most fobs require batteries that are CR2032. However, yours might require a different type.

Your fob could not be responding to buttons when it loses its connection to the car. This could be due to a number of factors, such as changing the batteries, but is generally simple for an auto Locksmith or your local dealership to fix.

Try this trick to solve your fob issue if none of the above methods work: remove the battery from both the fob and the car for about ten minutes, and then reconnect them in the opposite order. This could cause the system to restart and in some cases it can fix the issue without any other steps.

While you're testing the fob key repair, be sure to keep it out of water and other possible damage sources. Fobs can be quite sturdy, but you need to take care with it when you want it to last as long as possible.

If all of the suggestions above do not help, it may be time to think about replacing your key fob. If it has been dropped or trampled upon, or exposed to extreme environmental conditions, it may not be repairable and will need a replacement. If that's the case, make sure to look around to find a bargain before making a final decision.

Lost Fob

Even with the best of care it's a fact in the road that car key fobs will occasionally fail to function. If you lose yours, it could be a huge expense to replace it, especially in the event that you don't have spare. "You may end up spending $50 or more for a new replacement from the dealer and have it programmed, plus a new mechanical backup which could cost you at least another $100," says Mel Yu who is an automotive analyst at Consumer Reports.

A weak battery is among the most common causes for a keyfob to cease to function. You can try changing the battery on your own if you know how or get instructions from the owner's manual. If that doesn't work you'll need to call an expert.

A locksmith can help you to replace or locate your lost key fob. A locksmith will probably know the reason your fob stopped working in the first in the first place. If your car is old and doesn't have smart technology built in it is still possible to save money by recording the number plate of your mechanical backup key. It's usually hidden behind a keychain with an ornamental design. This will make it easier for the locksmith to reprogram a brand new key fob for your car should you 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 can cost more than just replacing it. The reason is that modern key fobs utilize rolling-code encryption to stop thieves from gaining access to the car. That 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 the majority of instances, you'll have to pay for the entire service at once, including any charges to reprogram a new key fob. This can range from $20 at some shops to over $200 at car dealerships, depending on the model of vehicle.