15 Interesting Facts About Key Fob Repair That You Never Knew

· 6 min read
15 Interesting Facts About Key Fob Repair That You Never Knew

Car Key Fob Repair Service

If your car's key fob stops working it could put you in a tough spot. While replacing it with a new key fob can be expensive and time-consuming, it's sometimes the most cost-effective option.

But before you go to the dealer to have one of your documents redrawn There are other places you can go to save money.

Dead Battery

A dead battery for a fob is among the most common problems with key fobs. This can be a surprise, especially if it happens when you're leaving to work or at a social event. Although you may have an emergency plan, such as a spare key or a phone number to call roadside assistance, you will likely require the fob to be repaired or replaced. It's good to know that the majority of car keyfob battery problems can be fixed easily with the right information.


A lot of modern cars have a backup system in place that allows for the possibility of a fob battery going bad. If you attach a dead fob in the ignition, you will usually start the vehicle. If you own a push-to-start vehicle, this will also unlock the doors. The owner's guide for your vehicle will give you detailed instructions on how to use the key fob.

Other causes for keys not responding to button presses or turning off include buttons that aren't fully pressed, a low-capacity battery, or a remote that needs to be programmed. In some instances, a simple cleaning may be all it takes to get your key fob working again. As key fob buttons get repeatedly pressed, dirt could accumulate and prevent them from being fully pressed.

An easy way to clean your key fob in a pinch can be to use the end of the paper clip. You can use this to open the case securely and remove your old battery. Keep an additional battery and any tools you'll need to remove the key fob's case on hand. You can prepare for any issues with your keyfob well ahead of time, so you do not have to worry about it ruining your day or needing to call roadside assistance. Alternatively, you can keep a spare key in your pocket to ensure you don't get surprised by a problem with your key fob.

Button Issues

The buttons on a key fob send signals to the remote's circuit board when they're hit. If the buttons wear out, signals may not be transmitted and your device will stop functioning. This could happen over time or could be due to an issue with your car or fob. If the button is worn out, a professional can replace or repair it.

Key fobs are frequently exposed to a lot of abuse. Every day, they're broken, dropped, and exposed both to cold and hot. They're also very fragile and can easily be broken. The inside of the fob is filled with parts like a circuit board and battery contacts that could be destroyed with enough abuse.

Most issues can be fixed by changing the battery in the fob, however there are certain issues that require more. The battery can be inspected by opening the case of the key fob using the help of a screwdriver to determine whether it's dirty or requires replacement. The majority of key fobs utilize 3V button cells, which are available in almost any store.

Fobs can also be damaged by water even if it's just a small amount of water. This can be a problem when you accidentally wash your key fob or go swimming with it in your pocket.  car key repair cost  can harm the transponder chip and cause the key fob to cease working.

If you're dealing with a button issue, your best option is to call a professional locksmith. They can usually repair or replace the button and reprogramme it for you. They can also fix other electrical problems, like a broken light or a horn that won't work.

It's important to stay up-to-date with the most recent technology and tools for your vehicle. Cars can be costly. If you don't, the vehicle won't function as it should and it will be harder to get to where you need to be. It's also a safety issue to have faulty technology and equipment because it can cause more serious mechanical problems in the future.

Broken Battery Terminals

If you have been trying to start your car, but the fob hasn't been working it could be an indication that the battery terminals are broken. To unlock and start your car, the fob must be able to communicate with central system of your vehicle. This communication is done via a small radio transmitter inside the key fob. The transmission signals are sent to the car key's internal circuit (if there is one), which in turn unlocks the doors and begins the engine. The fob is designed to send this signal over distances of up to 50 feet, but the transmission might not function when the battery terminals are broken.

Fortunately, these are simple fixes. The process of replacing the battery is usually straightforward as taking out the old battery, finding out what type of replacement batteries are needed, and heading to an auto parts store or online retailer for the proper ones. Some key fobs are hard to open in order to access the batteries, however, and it is important to be cautious to ensure that you don't break anything inside.

The next step is to test the key fob again. If the key fob does not work the key that is in the fob could be damaged or the key might have been modified. Modern keys must be programmed to function with a particular vehicle, and certain error codes can corrupt the programming in the key fob. This can be remedied by a professional who will program the key again to the vehicle.

Another possibility is that the fob itself is damaged, especially in the event that it was dropped or left in the rain. It is also possible that the key fob was subjected to extreme heat or other issues that led to the circuit board to fail. This could happen if you are working on your car and accidentally exposed wires. This could lead to other problems, like a damaged key fob or a damaged horn. It is essential to examine the key fob for damage and replace or repair it if necessary, as the absence of a functioning key can be very stressful and dangerous.

Other Problems

Car key fobs are a great convenience, but they can also cause issues that require professional repair. Many of the problems that can cause problems with a car keyfob can be easy and inexpensive to repair. Here are some of most common problems with their potential solutions.

A dead battery

The most basic remotes can last for a long period before needing replacement batteries, however the life span of Smart Key fobs is generally much shorter. Fob batteries are typically required to be replaced every three or four years, and they are prone to fail when they are too old. This is a straightforward issue to fix - just buy the replacement battery and install.

Damaged receiver

The transmitter in your key fob needs to receive a signal from the vehicle's receiver to allow it to open and start it. If this receiver is damaged, signals will be unable to pass through and will remain inaccessible. This is a simple problem to identify, but it may be necessary to replace the entire receiver if too damaged.

Not programmed

Certain modern cars require a specific chip in the key fob in order to start. The chip communicates to the car using a unique code that is only recognized by the manufacturer. In the majority of cases, a replacement fob must be programmed by the dealer. You can find aftermarket fobs that can be used with a wide range of vehicles.

Not working

If you've tried replacing the batteries and buttons but your car key fob still isn't working it could be an electrical issue or some other issue that requires professional repair. A locksmith expert can swiftly resolve the issue by examining for the issue. This service will normally be cheaper than a trip the dealership. The cost of a new fob is contingent on the model of your vehicle and the local locksmith. Check with a few companies in your area to find out the cost prior to booking an appointment.