Key Fob Replacement and Repair
Modern car key fobs are used frequently and are often misused. Many times an easy repair or replacement is all it takes to restore them to good working in good condition.
Most fobs use flat-watch-style batteries that are easy to find in hardware stores and auto parts stores. Before electronic car key repair call in an expert, try some DIY fixes.
Dead Key Fob Battery
The key fob's battery powers your car's remote, and in push-to-start cars, it can start your engine. This is why it is critical to maintain an active, healthy battery. When you're on the move, a dead key fob can be a huge problem. A simple, inexpensive replacement can fix the issue quickly.
The most common indication that a key fob's battery is failing is the decrease in signal strength and range. You might also notice that the buttons on your key fob aren't working or require additional 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 sold in packs of 2 or more. However it's best to read the owner's manual before shopping for the right battery for your vehicle. Some cars require a specific size or type of battery that isn't always readily available at big-box stores. Be sure to check before you buy.
Typically the battery is situated on the back of your key fob and can be removed by prying the case open using the flat-blade screwdriver. It is usually shaped like the shape of a small coin, and be marked with the battery's size. Be sure to note the orientation of the plus and minus symbols so that you can place the new battery properly. After the replacement battery is placed in the fob, gently snap both pieces of the fob in place and test each button to ensure that they work.
If your key fob still does not work after replacing the battery, it might have been deprogrammed. In this situation, a locksmith will be needed to help you. This is more expensive than replacing the battery of your key fob.
The skilled mechanics at YourMechanic are able to repair your key fob in the event that it's damaged or the battery is dead. Schedule an appointment to see the range of services we offer in your region.
Weak Signals

If you notice that your key fob isn't responding as you would expect to the buttons on the remote, this can be an indication of a problem with the signaling. Radio signals are used to send messages between your car and the key fob. Poor or inconsistent radio signals can lead to poor performance and range.
The battery level of your fob is a good idea since it can significantly affect signal sensitivity. Resetting the settings on the fob could also help restore a more consistent response. The procedure differs from vehicle to vehicle, so your owner's manual or a call to the helpline of the manufacturer will likely be your best source of information here.
Other factors can contribute to weak fob signals, such as interference from other devices that operate on the same frequency as your key fob. Other key fobs and wireless communication devices could interfere with the RF (radio-frequency) signals your key fob transmits to connect to the receiver of your vehicle.
Additionally, physical damage to your key fob may also interfere with the transmission of signals RF, which could result in a decrease in performance and range. A blown fuse, broken or cracked buttons or bent fob case can affect the transmission of signals and cause the remote to not respond.
There are a few easy steps you can take to try and resolve the issue of weak fob signals, like resetting the fob's settings or replacing the battery. If your fob has become old and worn out, it might be time to replace it.
Don't forget to use the spare remote that came with your car if your primary remote starts to fail. You should try this solution first to see if you can resolve the issue before purchasing another remote. In this situation it could be the right an appropriate time to consult an expert auto-locksmith. They'll be able to determine the cause and recommend the best course of action.
Physical Damage
Key fobs can be troublesome occasionally. Luckily, the majority of these issues aren't serious or complex and can be solved with some simple steps. It's a good idea to keep spare batteries or an additional fob in case your key fails to function.
A dead battery is the main reason why a key fob in a car is not working. These little devices rely on tiny lithium-ion coin or button cell batteries to function. These are easily replaced and are available at most pharmacies, grocery stores, and other places that sell electronic products. Open the fob's case with a screwdriver with a flat head and gently remove your existing battery. Check to see if it's damaged or loose and then insert an alternative battery. Most fobs require CR2032 batteries. However, yours may require a different type.
If your device loses its pairing, it can stop responding to buttons. This could be due to a variety of factors, such as changing the batteries, however it is generally simple to get an auto Locksmith or your local dealer to resolve.
You can try this method to fix your fob when none of the other methods work: remove the battery from both the car and the fob for around ten minutes, then reconnect them in the reverse order. This may cause the system to restart and in some instances it can fix the issue without any other steps.
When you're playing around with the fob, make sure to keep it away from water and other damage sources. A fob can be pretty sturdy, but you need to treat it with care if you want it to last as long as you can.
If none of the troubleshooting procedures above help, you may need to replace your key fob. If it's been thrown, trampled on or exposed to harsh conditions, it might not be able to be repaired and will need a replacement. If this is the case, make sure to shop around for a deal before making your final choice.
Lost Fob
Even with the best of care it's a fact in the road that car key fobs can sometimes fail to function. If yours is lost, it can be extremely expensive to replace it, particularly if you don't have a spare. "You could end up paying $50 - $100 for a replacement, and having it programmed by a dealer, plus mechanical backups that could cost another $100," says Mel Yu an automotive analyst at Consumer Reports.
A weak battery is among the most common causes for a keyfob's cease to function. You can try replacing the battery on your own If you are familiar with the procedure or get instructions from your owner's manual. If that doesn't work you'll have to call an expert.
nearby key repair shop will be in a position to assist you in finding your lost fob, or get it replaced. A locksmith will probably know the reason your fob stopped working in the first initial place. If your car is old and does not include smart technology however, you can save money by recording the number plate from your mechanical backup key. It's usually hidden behind a keychain with an ornamental design. If you're in need of reprogramming your car's key fob the locksmith can do it much more quickly.
If your current key fob is a smart key of the present it will require a locksmith or a dealership to remove it from the system and have an entirely new one, which can be more expensive than replacing it. Modern key fobs are protected by rolling-code encryption which stops thieves from gaining access to the car. This means that the locksmith has to have a special programming tool that is only available to car manufacturers, which increases the cost.
In most cases, you'll need to pay for the entire service at once, including any charges to reprogram the new key fob. Depending on the type of vehicle, that can run from around $20 at certain stores to $200 or more at a car dealership.