As technology has advanced, so has the way we access our vehicles. Key fobs have become increasingly commonplace, offering a more convenient and secure way to unlock and start our cars. But what happens when your key fob breaks or gets lost?
This article will tackle the following topics to help you be as prepared as possible in the event that you need to replace your key fob:
- Key fob replacement
- Types of car keys and fobs
- Reasons for key fob malfunction
- Common solutions to key fob problems
- How to get your key fob working again
- The cost of key fob replacement

Key Fob Replacement
Most new cars come with a key fob – a remote that allows you to lock and unlock your car, as well as start the engine without taking the keys out of your pocket. Key fobs usually have buttons for controlling these functions, and they may also include a panic button that sets off the car’s alarm.
If your key fob stops working, it will need to be replaced. However, replacing a key fob varies depending on the make and model of your car.

Types Of Car Keys And Fobs
Each car has a unique key designed to work with the vehicle’s locking and ignition system. The four most common types of car keys are:
Basic Car Key
A basic car key is like the traditional metal key that many people are accustomed to. These keys typically have a plastic head that houses a mechanical key blade for locking and unlocking your car’s door. Also, the mechanical key blade clips into the ignition and can be used to start your car. However, newer cars often use basic keys embedded with a computer chip to help start the car and lock and unlock the doors.

Key Fobs With A Proximity Key
This type of key fob relies on radio waves rather than a mechanical key blade to allow it to automatically lock and unlock the doors when you are close to the car. However, these key fobs may not be able to start your car, as they typically require a separate mechanical key blade.
Although they exist as two separate components, the key fob and mechanical key can sometimes be combined into a single switchblade-style unit. With this switchblade unit, the mechanical key blade extends from the head of the key fob when you press a button.

Remote Keyless Ignition Systems
This type of key fob relies on radio waves rather than a mechanical key blade to allow it to automatically lock and unlock the doors when you are close to the car. However, these key fobs may not be able to start your car, as they typically require a separate mechanical key blade. Although they exist as two separate components, the key fob and mechanical key can sometimes be combined into a single switchblade-style unit. With this switchblade unit, the mechanical key blade extends from the head of the key fob when you press a button.
Although they exist as two separate components, the key fob and mechanical key can sometimes be combined into a single switchblade-style unit. With this switchblade unit, the mechanical key blade extends from the head of the key fob when you press a button.

Smart Keys
A smart key is similar to a remote keyless ignition system. However, unlike a remote keyless ignition system, it allows you to unlock and start your car without having to touch either the physical key or the key fob.
Although they exist as two separate components, the key fob and mechanical key can sometimes be combined into a single switchblade-style unit. With this switchblade unit, the mechanical key blade extends from the head of the key fob when you press a button.

Can You Get A Replacement Key Fob?
The simple answer is yes; getting a replacement key fob for your car is possible.
Depending on the make and model of your vehicle, you may be able to order a new key fob from the manufacturer, your car dealer, your local locksmith, or you may be able to purchase one online from an aftermarket supplier.
Why Isn't My Key Fob Unlocking My Car?
There are several possible reasons why your key fob may not be unlocking your car. These possible reasons include the following:
Low Battery
The batteries in your key fob may no longer be functioning properly, causing it to malfunction.
Electronic Interference
If you live or work near a radio tower, other electronic devices may interfere with the signal from your key fob to your vehicle, causing your key fob to malfunction.
Proximity
If you are not near your car when trying to unlock it, the signal from your key fob may not be reaching the vehicle. Try approaching your car from different directions or getting closer to it before pressing the unlock button.
Damaged Key
If you have dropped your key fob or otherwise damaged it, the internal components may have become misaligned or broken, preventing you from unlocking your car.
Why Is My Key Fob Not Working After Battery Change?
If your key fob is not working properly after changing the batteries, it may be due to several factors. This could include issues with the battery terminals or that your key fob has gone bad and that it requires reprogramming from your local dealer or locksmith.
However, you may need to consult a professional for further assistance to troubleshoot these issues. In many cases, though, replacing the batteries in your key fob should be enough to get it working again.
Common Solutions
If your key fob is not working, you can do two major things to try and fix the problem: replace the batteries or have the key fob reprogrammed.
Key Fob Battery Replacement
Replacing the batteries in your key fob is a relatively simple task, and it is often the first thing you should try if your key fob is not working properly. This can help ensure that proper power flows to the key fob and that any other issues with the battery terminals are resolved.
Be sure to use fresh batteries in your key fob, as old or drained batteries may be causing the issue.
Key Fob Programming
If replacing the batteries does not fix the problem, you may need to have your key fob reprogrammed. This process can vary depending on the make and model of your car, so it is best to consult with a professional to see what needs to be done. In most cases, however, reprogramming the key fob should fix any issues you have with it.
How Do I Get My Key Fob To Work Again?
If your key fob is not working properly and you need to get it working again, you can take the following steps:
Consider Replacing The Batteries
Most key fobs use batteries that can be easily replaced, often by simply popping out the old battery and inserting a new one. This quick and easy solution should get your key fob to work again.
When To Go To A Dealer For A Replacement
If your key fob is no longer working properly and you have tried replacing the batteries or reprogramming the key fob, it may be time to consider having a professional replace your key fob. Many car dealerships can replace the key fob while you wait, and they offer a range of replacement options depending on your needs.

How Much Does It Cost To Replace A Key Fob?
The cost of replacing a key fob can vary depending on the type and model of your car, as well as whether you will do it yourself or hire a professional to do it for you.
Do It Yourself
If you choose this route, you can purchase a key fob replacement online or at your local auto parts store and install it yourself. Typically, online stores like Walmart.com, Amazon.com, and KeylessOption.com offer numerous low-cost remotes ranging from as little as $40-$450, depending on your car’s brand.
However, it is important to note that most of these remotes are universal and may require special programming from a dealer or a locksmith. This can set you back an additional $30-$100, depending on your car’s make and model.
It’s important to note that some cars may not work with aftermarket key fobs. So, it’s important to do some research on your car first before attempting a do-it-yourself key fob replacement.
Hire A Professional
Alternatively, you may choose to hire a professional to replace your key fob for you.
Depending on your car’s brand and location, this can cost anywhere from $300-$600 or more for the key fob replacement, including programming.
However, hiring a professional will often ensure that the replacement is done correctly and can give you the peace of mind that your car is secure.
In addition, this route may save you time and money in the long run, as having a key fob replaced professionally may help to prevent any additional issues that could occur with an aftermarket replacement.
How Long Does It Take To Replace A Key Fob?
The time it takes to replace a key fob will depend on several factors, including whether you are replacing it yourself or hiring a professional.
A key fob replacement done by a professional – from start to finish- takes at least 45 – 60 minutes. If you are doing the replacement yourself, it may take longer, depending on your car type and what type of key fob replacement kit you purchase.
Get Your Key Fob Replaced Today
As we have seen, you can take steps to get your key fob working again. These steps include replacing the batteries and reprogramming the key fob. However, if none of these solutions work, it may be time to consider replacing your key fob completely. And no better place to get it done than at Automotive Key Solutions.
We are a leading locksmith company in Houston, Texas, specializing in the replacement of key fobs. Whether you need a professional to replace your key fob or need help reprogramming your key fob, we have the expertise and experience to get the job done right.
Contact us today and get your key fob replaced quickly and easily!