The key fobs found in modern cars are very efficient and are subject to an awful amount of abuse. In most cases, an easy repair or replacement is all it takes to get them working again.
Most fobs run on a flat watch-style batteries. This can be found in hardware and auto parts stores. However, before calling an expert, you can try a few DIY solutions!
Dead Key Fob Batteries
The battery in the key fob powers the remote function of your car. It also, in conjunction with push-to start vehicles, permits it to start your engine. It is therefore crucial to keep a functioning and healthy battery. A dead key fob is an issue when you're on-the-go. The good news is that a simple, affordable replacement can fix it quickly.
The loss of range and signal strength are the most frequent indicators that a battery in a keyfob is dying. You may also notice the buttons on the key fob aren't working or require extra effort.
A new key fob is available in the auto part section of a large retailer or online. The majority of these batteries are CR2032 and CR2025 and are available in packs of 2 or more. Consult your owner's guide before you decide on the best battery. Certain cars require a specific size or type of battery that's not always readily available at big-box stores Be sure to know the specifications prior to you buy.
The battery is usually located in the back of the key fob. It can be removed using an abrasive screwdriver with a flat blade by removing the case. It is usually shaped like a small coin and be marked with the battery's size. Be sure to note down the orientation of the plus and minus symbols in order to insert the battery correctly. After the replacement battery is placed in the fob, gently snap both pieces of the fob together and test each button to ensure that they work.
If your key fob doesn't work after replacing the battery, it may have been deprogrammed. In this case, you'll need to contact a locksmith for help and it will cost you a bit more than replacing the battery in your key fob.
Our skilled mechanics at YourMechanic can repair your key fob in the event that it is damaged or if the battery has failed. Set up an appointment to review all the services we offer in your region.
Weak Signals
If your key fob isn't able to respond to the buttons of the remote, it could be an indication that the signaling system is not working correctly. Radio signals are used to communicate between your car and key fob. Inconsistent or weak radio signals can cause poor performance and range.
Checking the battery level of your fob is a good idea because it could affect the sensitivity of the signal. 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 phone call to the manufacturer's help line will likely be your best resource here.
Other factors can cause weak fob signals, such as interference from other devices operating on the same frequency as your key fob. Power lines as well as other key fobs, wireless communication devices, and even cellular networks can interfere with the RF (radio frequency) signals that your key fob uses to connect to the receiver inside your vehicle.
Furthermore physical damage to your key fob could hinder the transmission of RF signals which could result in a decrease in range and performance. A blown fuse, a damaged or cracked button or bent fob case can affect the transmission of signals, causing the remote to not respond.
You can attempt to fix the problem by resetting the settings on your fob or by replacing the battery. If your fob is old and worn out, it's time to replace it completely.
Lastly, don't forget that if you have an extra key fob that comes with your vehicle, this can be used in place of the primary remote if it starts to fail. It's a good idea to try this method to determine if it resolves the issue prior to investing in an entirely new one. In this case it may be the right time to contact an expert auto-locksmith. They will be able to determine the cause and recommend the best solution.
Physical Damage
It's not common for key fobs to encounter issues from time to time. The majority of these problems aren't complicated or difficult to fix and can be solved by following a few easy 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 stops working.
The most frequent cause for a car key fob not working is an inactive battery. These small devices depend on tiny lithium-ion coin or button cell batteries to function. They are easy to replace and can be found at most pharmacies, grocery stores and shops that sell electronic products. The fob's case can be opened using a screwdriver with a flat head and gently remove your existing battery. Make sure it's not damaged or loose, and then put in a new battery. The majority of fobs use CR2032 batteries, but yours may require an alternative kind.
If your device loses pairing, it could stop responding to buttons. This could be due to a variety of factors like changing the batteries. However an auto Locksmith or local dealership will usually be able to fix it.
You can try this trick to fix your fob if none of the above methods work: disconnect the battery from both the car and the fob for around ten minutes, then reconnect them in the reverse order. This could trigger a restart within the system, and in some cases, this alone will fix the problem without doing any of the other steps.
While you're experimenting with the fob, ensure to keep it out of water and other potential damage sources. The fob is tough however, you must take care with it to ensure that it lasts for 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 dropped, trampled on or exposed to harsh environmental conditions, it may not be repairable and will require an upgrade. Shop around to find the most affordable price.
Lost Fob
Even with the best care keys for cars, they will occasionally stop working. If yours is lost, it could be a huge expense to replace it--especially in the event that you don't have spare. "You might end up paying $50 or more for an alternative from a dealer and get it programmed, and an additional mechanical backup which could cost you 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 to cease to function. If you are aware of how to change the battery, or if your owner's guide has instructions, try it yourself. If this doesn't resolve the issue, it's time to get help from an expert.
A locksmith will be capable of helping you locate your lost fob, or get it replaced. A locksmith will likely know the reason why your fob stopped working in the first in the first place. If your car is older and doesn't have smart technology built in however, you can save money by recording the key's 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 perform the task more easily.
If your key fob is an older smart key, it'll need to be deprogrammed by a locksmith or dealer. This could cost more than replacing it. The reason is that modern key fobs employ rolling-code encryption that prevents thieves from getting into the car. This means that locksmiths must have a special programming tool that is only available to car manufacturers, which increases the cost.
In most instances, the entire process will be charged once. This includes any costs to reprogramme a new keyfob. Depending on car key repairs near me can range from around $20 at certain stores to $200 or more at a dealership for cars.
