Key Fob Replacement and Repair
The key fobs in modern automobiles do a lot of work and are subject to a lot of abuse. Often a simple repair or replacement is all that's needed to get them working again.
Most fobs use flat watch-style batteries that can be found in auto parts retailers. But before you call a professional, try a few DIY fixes!
Dead Key Fob Batteries
The key fob battery powers the remote function of your car and, with push-to-start vehicles it allows it to start your engine. It is therefore important to maintain a working, healthy battery. When you're out and about, a dead key fob can be a huge problem. A simple, inexpensive replacement can fix the issue quickly.
The loss of range and signal strength are among the most frequent indicators that a battery in a keyfob is dying. It is also possible to notice that the buttons on the key fob aren't working or require additional effort.
It is common to 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 that are sold in packs of two or more. Make sure to consult your owner's manual prior to you shop for the right battery. Certain cars require a certain size or type of battery that isn't always available at big-box stores. Make sure to verify before you buy.
The battery is typically located in the back of the key fob. It can be removed using the flat-bladed screwdriver, by opening the case. The battery will look like tiny coins, and it will be labeled based on its size. Make 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 inserted, gently snap both pieces of the fob together and test all of the buttons to make sure they function.
If your key fob still doesn't work after replacing the battery, it might be deprogrammed. In this case, a locksmith will be needed to help you. This will cost more than just replacing the battery in the key fob.
Whether your fob battery is failing or you're experiencing other issues with your fob's key, an experienced mechanic like one from YourMechanic can check and repair it to get you back on the road. 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 could be an indication of a problem with signaling. Your car and key fob depend on radio signals to communicate, and weak or inconsistent signals could result in poor range and performance.
Checking the battery level of your fob is a good idea, since it can have a significant impact on signal sensitivity. Resetting the settings on the fob can also aid in restoring a constant response. The procedure differs from vehicle to vehicle, so the owner's manual or a phone call to the helpline of the manufacturer is likely to be the best resource here.
Other factors can cause weak fob signals, including interference from other devices that operate on the same frequency as your key fob. Power lines as well as 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.
Finally physical damage to your key fob could hinder the transmission of signals RF, which could result in a decrease in performance and range. A blown fuse, a damaged or cracked buttons, or a bent fob case can interfere with the transmission of signals and cause the remote to fail to respond.
There are some simple steps you can take to try and solve the issue of weak fob signals, for example, resetting the fob's settings or changing the battery. If, however, your fob is old and worn out, it's time to replace it altogether.
Don't forget to use the spare remote that came with your car if your primary remote starts to fail. It's worth trying this option to determine if it resolves the issue before investing in an entirely new one. In this situation it could be the right the right time to contact an expert auto-locksmith. They can identify the issue and suggest the most effective solution.
Physical Damage
It's not common for key fobs to experience issues from time to time. Fortunately, most of these problems are not difficult or complicated and can be resolved by following a few simple steps. It's a good idea also to keep spare batteries or another fob on hand in case your key fails to function.
A dead battery is the most common reason for a car keyfob not working. These small devices rely on tiny lithium-ion button or coin batteries to function. These are easily replaced and can be found at most pharmacies, grocery stores and shops which sell electronic items. The fob's case can be opened using a flat-headed screwdriver and gently remove your existing battery. Make sure it's not loose or damaged and then put in a new battery. The majority of fobs use CR2032 batteries. However, yours might require a different type.
When your fob loses its pairing, it can cease to respond to buttons. This could be due to a number of reasons, including changing the batteries, but is usually easy for an auto Locksmith or your local dealership to fix.
You can try this method to fix your fob when none of the other methods work: disconnect the battery from both the fob and the car for about 10 minutes, and then reconnect them in the opposite order. This could trigger a reboot within the system and, in some instances, this alone will fix the problem without doing any of the other steps.
While you're experimenting with the fob, ensure to keep it away from water and other dangers. A fob is durable but you need to take care with it to ensure it lasts for as long as it is possible to.
If all of the suggestions above aren't working, it could be time to replace your key fob. If it has been dropped or trampled upon, or exposed to extreme environmental conditions, it could not be able to be repaired and will require a replacement. Shop around to find the most competitive price.
Lost Fob
Even with the best care it's a fact of the road that car key fobs can sometimes fail to function. If you lose yours it can be extremely expensive to replace it, especially in the event that you don't have spare. "You may end up spending $50 or more to get a new replacement from the dealer and then have it programmed, as well as a new mechanical backup, which will cost at most another $100," says Mel Yu who is an automotive analyst at Consumer Reports.
One of the most frequent reasons for a key fob's device to stop working is a simple issue, like a weak battery. If you are familiar with how to replace the battery, or if the owner's manual contains instructions, try it yourself. If that doesn't work you'll have to call an expert.
A locksmith can help to replace or locate the lost key fob. They'll also probably have an idea of the reason your fob stopped functioning in the first place. If auto key repair near me is old and does not have smart technology built in, you can still save money by recording the number plate on your mechanical backup key. It's usually hidden behind a keychain with an ornamental design. If you're looking to change the programming of the key fob in your car the locksmith can do it much more quickly.
If your key fob is an older smart key, it will need to be deprogrammed by a locksmith or car dealer. This could cost more than just replacing it. Modern key fobs are protected by encryption using rolling-codes that prevents thieves from getting access to the car. This means that locksmiths must have a special programing tool that is only available to car manufacturers, which increases the cost.
In the majority of cases, you'll need to pay for the entire service at once, which includes any costs to reprogram a new key fob. This could range from around $20 at some shops to more than $200 at car dealerships, based on the vehicle.