Key Fob Replacement and Repair
The key fobs found in modern cars perform a lot of work and are subject to a lot of abuse. Many times, a simple repair or replacement is all that's required to bring them back into good working order.
Most fobs use flat-watch-style batteries that are readily available in hardware stores and auto parts stores. But before you call an expert, try a few DIY fixes!
Dead Key Fob Batteries
The battery for the key fob power the remote function of your car and, with push-to-start vehicles it allows it to start your engine. This is why it is essential to keep a healthy, working battery. When you're on the move, a dead key fob could be a major issue. A simple, low-cost replacement can fix the issue quickly.
The loss of range and signal strength are the most common indicators that a battery in a keyfob is dying. You may also notice the buttons on the key fob aren't working or require more effort.
You can often find a new key fob battery in the auto parts section of a big box store or on the internet. They are typically CR2032 and CR2025 and are sold in packs of 2 or more. Make sure to consult your owner's manual prior to you shop for the right battery. Some cars require a specific size or type of battery that isn't always available at big-box stores. Be sure to check before you buy.
The battery is usually found on the back of the key fob. It can be removed with a flat-bladed screwdriver by prying the case open. It is likely to look like an ordinary coin and will be marked with the battery's size. Make sure to note the direction the plus and minus symbols are placed to ensure that the battery you are replacing is positioned correctly. After the replacement battery has been installed, gently snap the two pieces of the fob in place and test all of the buttons to ensure they work.
It's worth noting that, when your key fob is unable to cease functioning even after battery replacement, it might be deprogrammed. In this case you'll need to call a locksmith for help and it will cost you some more than replacing the key fob battery.
YourMechanic's experienced mechanics can repair your key fob if it is damaged or if the battery has failed. Make an appointment to look over all the services we provide in your local area.
Weak Signals
If your key fob isn't able to respond to the buttons on the remote, it could indicate that the signaling is not working correctly. Radio signals are used to send messages between your car and the key fob. Inconsistent or weak radio signals can result in poor performance and a limited range.
Checking the battery level of your fob is a good idea, as it can significantly affect signal sensitivity. Resetting the settings of the fob can aid in restoring a more consistent response. The procedure may differ from vehicle to vehicle. The owner's manual or a call to your manufacturer's support number is your best source of information.
Other factors can cause weak fob signals, for example, interference from other devices that operate on the same frequency as your key fob. Power lines, other key fobs, wireless communication devices, and even cellular 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 an RF signal, resulting in low performance and a limited range. A blown fuses, a damaged or cracked button, or a bent case on the fob could all affect the signal transmission and cause the remote to respond.
You can attempt to solve the issue by resetting the fob's settings or by replacing the battery. If repair car key is old and damaged, it's the time to replace it all over again.
Also, don't forget if you have an extra key fob that is included with your vehicle, this can be used instead of the primary remote in case it begins to fail. You should try this solution first to see if it can resolve the issue before purchasing an entirely new remote. If not, this might be the best time to contact an expert auto locksmith. They'll be able to diagnose the problem and suggest the most effective method of action.
Physical Damage
It's not common for key fobs to encounter issues from time-to-time. Fortunately, most of these problems are not difficult or complicated and can be fixed with some simple steps. It's also a good idea to have spare batteries or even another key fob in the event that one of your keys ever ceases to function.
The most common reason for car keys not working is an inactive battery. These little devices rely on tiny lithium-ion coin or button cell batteries to function. They can be replaced easily and are available at most pharmacies, grocery stores and places that sell electronic products. The fob's case can be opened using a flat-headed screwdriver and gently pull out your existing battery. Check to see if it's damaged or loose, and then insert a new battery. Most fobs require CR2032 batteries. However, yours may require a different kind.
The fob may also stop responding to the buttons after losing its connection to the vehicle. This can be caused by a variety of factors, such as changing the batteries. However, an auto Locksmith or a local dealer can usually repair the issue.
If none of the solutions above work, try this method: disconnect the battery from the car and the fob for a few minutes and then reconnect them in the opposite order. This could cause the system to restart, and in some instances, this will fix the issue without any other steps.
Keep the fob clear of water or other sources of damage while you are trying out new techniques. The fob is tough, but you should take care with it to ensure it lasts for as long as it is possible to.
If none of the troubleshooting procedures above work you, it may be necessary to replace your key fob. If it's been dropped and trampled or exposed to harsh environmental conditions, it could not be repairable and will require an upgrade. Shop around to find the most competitive price.
Lost Fob
Even with the best of care, it's a fact of the road that car key fobs will occasionally cease to function. If yours is lost, it can be extremely expensive to replace it, particularly in the event that you don't have spare. "You could end up paying $50 - $100 for a replacement and getting it programmed by the dealer, as well as an electronic backup that could cost you another $100," says Mel Yu an automotive analyst at Consumer Reports.
A weak battery is among the most frequent reasons for a keyfob's cease to function. You can try replacing the battery yourself if you know how or refer to your owner's manual. If this doesn't work, you'll need to contact an expert.
A locksmith can help replace or find your lost key fob. A locksmith can probably tell you the reason your fob stopped working in the first place. And if your car is an older model with no built-in smart technology You can save cash by locating the key number plate on your existing mechanical backup key (it's typically hidden behind a keychain ornament with a decorative design) and storing it in a safe place--such as your wallet or on your phone. If you're in need of reprogramming your car's key fob the locksmith can perform the task more easily.
If the key fob you have is a smart key of the present, you'll have to visit an auto dealer or locksmith to remove it from the system and have a new one made, which can be more expensive than simply replacing it. The reason is that modern key fobs use rolling-code encryption to stop thieves from accessing the car. This means that locksmiths must be equipped with a specific programming tool that is available only to car manufacturers, which increases the cost.
In most cases, you'll need to pay for the entire service at once, which includes any costs to reprogram the new key fob. This could range from around $20 in some stores to over $200 at car dealerships, depending on the model of vehicle.