Key Fob Replacement and Repair
Modern car key fobs are used often and are often misused. Sometimes an easy replacement or repair is all it takes to get them back in working in good condition.
Most fobs run on a flat watch-style battery, which is easily found in auto parts and hardware stores. But before you call an expert, try a few DIY solutions!
Dead Key Fob Battery
The key fob's battery powers your remote in your car and, in push-to-start vehicles it will start your engine. Therefore, it is crucial to maintain a healthy, working battery. A dead key fob is an issue when you're traveling. A simple, inexpensive replacement will solve the issue quickly.
The most frequent sign that a key fob 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 extra effort.
You will often find an updated key fob battery in the auto parts section of a big box retailer or online. Typically, they're CR2032 or CR2025 batteries and are available in packs of two or more. However it's a good idea to consult your owner's manual before you shop for the right battery for your device. Certain cars require a certain size or type of battery, which isn't always readily available at big-box stores. Make sure to verify before you buy.
Typically, the battery is located in the back of your key fob. It can be removed by prying the case open using a flat-blade screwdriver. It is likely to look like an ordinary coin and will be labelled with the battery's size. Be sure to note down the orientation of the plus and minus marks so that you can put the new battery in the correct place. After the battery has been replaced, gently snap the two pieces of the fob back together and test the buttons.
It's important to note that if your key fob continues to cease functioning even after battery replacement, it may be deprogrammed. In this case you'll have to contact an expert locksmith and it will cost you a bit more than replacing the battery of your key fob.
If your fob's battery is failing or you're experiencing other issues with your fob's battery an experienced mechanic such as one from YourMechanic can examine and fix it to get you back on the road. Set up an appointment to review all the services we offer in your area.
Weak Signals
If your key fob doesn't respond to the buttons of the remote it could be an indication that the signaling is not functioning properly. Radio signals are used to communicate between your car and key fob. Weak or inconsistent radio signals can lead to poor performance and range.
One of the first things you should examine is whether your fob's battery is low because this could significantly impact signal sensitivity. Resetting the settings on the fob could also aid in restoring a constant response. The process will vary from vehicle to vehicle. Your owner's guide or a phone call to your manufacturer's support line is your best resource.
Other factors can contribute to weak fob signals, such as interference from other devices operating on the same frequency as your key fob. Other key fobs and wireless communication devices can interfere with the signal RF (radio-frequency) signals your key fob transmits to the receiver of your vehicle.
Additionally, physical damage to your key fob can hinder the transmission of RF signals, which can result in poor performance and range. A blown fuse, damaged or cracked button, or a bent case of the fob may affect the transmission of signals and cause the remote to respond.
There are a few easy steps you can take to try and solve the issue of weak fob signals such as resetting the fob's settings, or replacing the battery. If your fob is old and worn, it could be the right time to replace it.
Don't forget to use the spare remote that came with your car in the event that your primary remote begins to fail. It's worth trying this option to see if it solves the issue before you invest in a new one. If not, it might be the best time to contact an expert auto locksmith. They will be able to identify the problem and recommend the best course of action.
Physical Damage
Key fobs can be troublesome at times. Luckily, the majority of these issues aren't complicated or a major issue and can be solved by following a few simple steps. It's also a good idea to have spare batteries or even another fob available in case one of your keys stops working.
A dead battery is the most frequent reason why a key fob in a car is not working. These tiny devices are powered by lithium-ion button or coin cell batteries. These batteries are easily replaceable and can be found at most pharmacies and grocery stores. You can open the case of the fob using a flat-headed screwdriver and gently pull out the battery that you have. Make sure it's not damaged or loose, and then insert the new battery. Most fobs require batteries with CR2032 capacity. However, yours might need a different type.
If your device loses pairing, it can cease to respond to buttons. This could be due to a number of factors, including changing the batteries, however it is typically a simple issue to get an auto Locksmith or your local dealership to resolve.
If none of the solutions above work, you can try this trick: unplug the batteries from the car and the fob for a few minutes and then reconnect them in a reverse order. This could trigger a restart within the system and in some cases this will fix the problem without doing any of the other steps.
Keep the fob clear of water or other sources of damage while playing around. A fob can be pretty robust, but it's crucial to treat it with care in order for it to last as long as possible.
If remote key fob repair of the troubleshooting techniques above work you, you may have to replace your key fob. If it's been thrown and trampled or exposed to harsh conditions, it might not be able to be repaired and may require an upgrade. If that's the case, be sure to look around to find a bargain before making your final decision.
Lost Fob
Even with the best of care it's a fact of life that car key fobs can sometimes fail to function. If you lose yours, it can be extremely expensive to replace it--especially if you don't have a spare. "You might end up paying $50 or more to get an equivalent replacement from a dealer and get it programmed, plus a new mechanical backup which will cost at least another $100," says Mel Yu, an automotive analyst with Consumer Reports.
A weak battery is one of the most common reasons for a keyfob's cease to function. You can try changing the battery yourself If you are familiar with the procedure or refer to your owner's manual. But if that doesn't fix the problem, you need to get help from an expert.
A locksmith can assist you to replace or locate the lost key fob. They'll also have a good idea of the reason why your fob stopped working in the first instance. And if your vehicle is an older model that has no smart technology built-in, 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 in your wallet or on your phone. This will make it much easier for a locksmith to reprogram a brand new key fob for your car should you need to do it.
If your existing key fob is a modern smart key and you want to change it, you'll need to go to a car dealership or locksmith to deprogram it before getting an entirely new one, which can be more expensive than replacing it. Modern key fobs are protected by encryption using rolling-codes, which prevents thieves from gaining access to your car. And that means the locksmith needs to have a special programing tool that only the car manufacturer has, which increases the overall cost.
In most instances, the entire service will be charged at one time. This includes any costs to reprogramme a new keyfob. Depending on the type of vehicle the cost can range from around $20 at certain stores to $200 or more at a car dealer.