The Unspoken Secrets Of Fob Key Repair

· 6 min read
The Unspoken Secrets Of Fob Key Repair

Key Fob Replacement and Repair

Key fobs on modern automobiles are very efficient and are subject to an awful amount of abuse. Sometimes, an easy repair or replacement is all that's needed to get them working again.

Most fobs use flat-watch-style batteries that are easy to find in auto parts retailers. Before calling a professional, do some of the DIY fixes.

Dead Key Fob Battery

The battery in the key fob's remote powers your car's remote and, in push-to-start vehicles it will start your engine. As a result, it is critical to maintain an efficient, functioning battery. When you're on the move, a dead key fob could be a major issue. The good news is that a simple, affordable replacement can be made to fix it in a short time.

The loss of range and signal strength are the most common signs that a keyfob battery is failing. You might also notice that the buttons on the key fob aren't working or require extra effort.


It is common to find an updated key fob battery in the auto parts section of a big box retailer or online. Typically, these batteries are CR2032 and CR2025 and are sold in packs of 2 or more. However it's a good idea to check your owner's manual before shopping for the correct battery for your fob. Certain vehicles require a particular size or type of battery that isn't always available at big-box stores. Be sure to check before purchasing.

The battery is usually found at the back of the key fob. It is removed using an abrasive screwdriver with a flat blade by removing the case. The battery will look like tiny coins and will be identified according to its size. Be sure to note which way the plus and minus symbols are placed to ensure that the new battery is properly placed. Once the battery replacement is placed in the fob, gently snap both pieces of the fob together and test all of the buttons to ensure they work.

It's important to note that if your key fob continues to not function, even after a battery replacement, it might be deprogrammed. In this scenario you'll need to call an expert locksmith which will cost a bit more than replacing the battery in your key fob.

Whether your fob battery is dying or you're having other issues with your fob's key an experienced mechanic such as one from YourMechanic can inspect and repair it to get you back on the road. Be sure to check out all of our services available in your region and book an appointment today!

Weak Signals

If you find that your key fob isn't responding to buttons on the remote, this can be a sign of a problem with the signaling. Radio signals are used to send messages between your car and key fob. Poor or inconsistent radio signals can cause poor performance and a limited range.

Checking the battery level of your fob is a good idea, as it can significantly affect the sensitivity of your signal. Resetting the settings on the fob can also help restore a more constant response. The process will vary from vehicle to vehicle. The owner's manual or a call to the manufacturer's support line is your best guide.

Other factors, like interference from other devices that operate at the same frequency can also cause weak signals. Power lines and other key fobs wireless communication devices, and even cell networks can disrupt the RF (radio frequency) signals that your key fob uses to connect to the receiver inside your vehicle.

Finally physical damage to your key fob can also interfere with the transmission of RF signals which can result in poor performance and range. A blown fuse, a damaged or cracked button, or a bent case of the fob can affect signal transmission and cause the remote not to respond.

There are a few easy steps you can try to and fix the problem of weak signals from your fob, for example, resetting the fob's settings or replacing the battery. If, however, your fob is damaged, it's the time to replace it all over again.

Don't forget to remember that if you have a spare key fob that is included with your vehicle, it could be used as a replacement for the primary remote in case it begins to fail. It's worth trying this solution to determine if it resolves the issue before you invest in a new one. In  key repair near me , it might be the right time to contact an auto-locksmith professional. They can identify the problem and recommend the best way to proceed.

Physical Damage

It's not unusual for key fobs to experience issues from time-to-time. Most of these issues aren't complex or difficult to fix and can be solved by following a few easy steps. It's also a good idea to keep spare batteries or another fob on hand in the event that your key fails to function.

A dead battery is the most frequent reason for a car keyfob not working. These small devices rely on tiny lithium-ion coin or button cell batteries to function. They are easily replaced and are available in most pharmacies and stores. The fob's case can be opened using a screwdriver with a flat head and gently remove your existing battery. Check to see if it's loose or damaged and then put in a new battery. Most fobs utilize CR2032 batteries, however yours might require a different type.

If your device loses pairing, it could stop responding to buttons. This can happen due to a number of factors, such as changing the batteries, but it is typically a simple issue for an auto Locksmith or your local dealer to fix.

If none of the solutions above work, try this trick: disconnect the battery from the car and fob for a short period of time, then reconnect the two in a reverse order. This could trigger a restart within the system, and in some cases it will solve the issue without requiring any of the other steps.

Keep the fob clear of water or other sources of damage while you are playing around. A fob can be pretty durable, but it's important to take care with it in order for it to last as long as it can.

If none of the troubleshooting techniques above work you, you may have to replace your key fob. If it's been dropped or tripped over, or exposed to other harsh environmental conditions it could be damaged beyond repair and may require an upgrade. Find the most affordable price.

Lost Fob

Even with the best of care keys to cars will occasionally stop working. It's costly to replace yours when it is lost and especially in the event that you don't have an alternative. "You might end up paying $50 or more for an alternative from the dealer and have it programmed, plus a new mechanical backup, which will cost at most 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 replacing the battery on your own when you know how, or consult your owner's manual. If this doesn't work, you'll need to contact an expert.

A locksmith can be able to help you find your lost fob, or get it replaced. They will also likely have an idea of the reason your fob was not working in the first instance. If your car is old and does not come with smart technology, you can still save money by recording the key number plate of 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 will need to be deprogrammed by a locksmith or car dealer. This can cost more than replacing it. Modern key fobs are protected by encryption using rolling-codes, which prevents thieves from getting access to the car. That means that locksmiths need an exclusive programming tool that only the vehicle manufacturer has, which adds to the overall expense.

In the majority of cases, you'll need to pay for the entire service at once, including any costs to reprogram the new key fob. Depending on the vehicle the cost can range from around $20 at certain stores to $200 or more at a car dealer.