Hyundai Key Fob Battery Replacement: Complete DIY Guide & Instructions [2025]

To replace your Hyundai key fob battery, start by checking for signs like low responsiveness or needing to press buttons multiple times. Depending on your model year, you will need either a CR2032 or CR2025 lithium battery. Generally, models from 2015 to 2017 use a CR2032, while newer models use a CR2025.

Here are the steps to replace the battery:

1. Gather a small flathead screwdriver and a new battery.
2. Carefully pry open the key fob along its seam.
3. Remove the old battery and insert the new one, ensuring it is oriented correctly.
4. Close the fob securely.
5. Test the fob to ensure it works properly.

The entire process should take about 10 to 20 minutes, allowing you to save money on professional services and quickly resolve key fob issues.

When Does Your Hyundai Key Fob Need a Battery Change?

Your Hyundai key fob needs a battery change if it becomes less responsive, takes multiple presses to unlock, or the range decreases.

Typically, batteries last 2-3 years. Regular inspections and timely replacements ensure reliable performance and prevent unexpected access issues.

Use a CR2032 or CR2025 battery for replacements.

What Are the Warning Signs?

Recognizing the warning signs of a weakening Hyundai key fob battery can prevent inconvenient situations.

Typically, these indicators include:

1. Dead or Weak Signal – The key fob struggles to communicate with your vehicle from a usual distance.
2. Inconsistent Operation – Occasionally, you may need to press buttons multiple times to achieve the desired result.
3. Warning Messages – Some vehicles may display a low battery warning on the dashboard.

Being aware of these symptoms can help you address battery issues promptly.

Dead or Weak Signal

A key fob with a dead or weak signal can cause problems. Look for these signs to know when to change the battery in your Hyundai key fob.

1. Reduced Range: If you need to be closer to your car than usual for the key fob to work, it’s time to replace the battery.
2. Multiple Button Presses: If you have to push the buttons several times before the car responds, your key fob may be dying.
3. Unlocking Issues: Difficulty unlocking the doors or starting the engine remotely points to a weak signal.
4. Dim LED Indicator: A dim or unlit LED on the fob is another sign that the battery may need replacing.

Inconsistent Operation

If your Hyundai key fob is acting inconsistently, it may be time to replace the battery. Signs of a weak battery include the fob not locking or unlocking the car properly, needing multiple presses, or only working when you are close to the vehicle.

Other warning signs include delays in response after pressing buttons or the fob not working in certain areas. These issues indicate that the battery might need changing.

To fix this, refer to the Hyundai key fob instructions for guidance on replacing the battery. Changing the battery can help restore consistent operation and ensure your remote functions work reliably.

Warning Messages

When the battery in your Hyundai key fob is running low, you may see warning messages. The most common one is a “Hyundai key fob low battery” notification on the dashboard. This alert helps you know it’s time to replace the battery before the fob stops working completely.

Some car models may also show a light on the instrument panel or make a sound when you start the vehicle to indicate a low battery.

Another sign of a dying battery is a shorter range for remote keyless entry. If you find yourself needing to stand closer to your car for the fob to work, it’s a good idea to change the battery.

You might also notice that the doors don’t lock or unlock consistently, which can signal a weak battery.

In newer Hyundai models, you may receive a notification about the key fob battery through a connected smartphone app. Pay attention to these alerts to ensure you can access your vehicle without issues.

How Long Do Key Fob Batteries Last?

Hyundai key fob batteries typically last 2-4 years, depending on usage.

Frequent functions like locking and remote starting can shorten battery life, while extreme temperatures and proximity to electronics may further impact performance.

Regular monitoring can help ensure timely replacements and reliable access to your vehicle’s features.

Which Models Show Early Warning Signs?

Several Hyundai models show early signs that the key fob battery may need replacement. Recognizing these signs can help avoid issues like being locked out of your vehicle. Here are model-specific indicators:

1. Hyundai Elantra: If the key fob requires you to be closer to the car to work, the battery may be low.
2. Hyundai Santa Fe: A warning message will appear on the dashboard indicating “key fob battery warning”.
3. Hyundai Sonata: The dashboard will show a “key fob battery low indicator” when the battery is running out.
4. Hyundai Tucson: This model features a “key fob battery alert” system to notify you of battery issues.
5. Hyundai Kona: Similar to the Tucson, the Kona has a “key fob battery alert” to prompt timely replacement.

What Battery Type Does Your Hyundai Key Fob Use?

Generally, most Hyundai key fobs use CR2032 lithium batteries, but it is essential to consult your vehicle’s manual or an authorized dealer for precise details tailored to your model and year.

For purchasing replacement batteries, options range from local automotive stores to online marketplaces, each offering various price points to suit different budgets.

Battery Types by Model

To replace the battery in your Hyundai key fob, first identify the correct battery type for your vehicle model. Most Hyundai key fobs use CR2032 or CR2025 lithium coin cell batteries, but this can vary by model and year.

Check the table below for battery requirements for different Hyundai models:

Before replacing the battery, confirm the specific type for your model. This ensures the battery fits correctly and works well. Proper identification of the battery type makes the replacement easier and helps your key fob last longer.

Battery Types by Year

To find the right battery type for your Hyundai key fob based on the model year, follow this guide:

1. 2015-2017 Models: These models use the CR2032 lithium coin battery. This battery is reliable and compact, providing steady power for your key fob.

For help opening the key fob casing, check the vehicle’s manual or look for online tutorials specific to your model.

2. 2018-2020 Models: The battery for these years is usually the CR2025. This battery is a bit thinner than the CR2032 but still provides enough power for the key fob.

You can find detailed battery specifications in the owner’s manual.

3. 2021-2025 Models: These newer models often use the CR2450 battery. This battery offers more capacity and longer life, which is beneficial for key fobs that have extra features.

Always check your vehicle’s manual for the exact battery type before replacing your Hyundai key fob battery.

Where to Buy Replacement Batteries

If you need to replace your Hyundai key fob battery, you have a few good options. Here’s where you can find replacement batteries:

1. Online Retailers: Check websites like Amazon and eBay. They offer many choices for Hyundai key fob batteries.

You can compare prices easily and read customer reviews to see how well the batteries perform.

2. Automotive Stores: Visit local stores like AutoZone or Advance Auto Parts. They usually have key fob batteries in stock.

You can check the battery specifications and ask staff for help if needed. Prices may differ, but you can get the battery right away without waiting for shipping.

3. Hyundai Dealerships: If you want an original battery, go to a Hyundai dealership.

They sell genuine replacement batteries. These might cost more than other options, but they ensure compatibility and quality.

Consider convenience, price, and reliability when choosing where to buy your battery.

How to Replace Your Hyundai Key Fob Battery?

Replacing the battery in your Hyundai key fob involves a clear series of steps to ensure the process is completed efficiently and safely.

Preparation is crucial, requiring specific tools and adherence to safety precautions.

Following this, step-by-step instructions for opening the key fob, replacing the battery, and reassembling the device will guide you through potential challenges and ensure proper functionality.

Step 1: Preparation

To replace the battery in a Hyundai key fob, follow these steps. Start by gathering your tools. Here’s what you need:

1. Small flathead screwdriver: Use this to gently open the key fob casing.
2. Replacement battery (CR2032): This is the typical battery for most Hyundai key fobs. You can find it at electronics stores.
3. Soft cloth or towel: Place this down to avoid scratching the key fob.

Next, follow these safety precautions:

• Work in a well-lit area. This helps prevent mistakes.
• Handle the flathead screwdriver carefully to avoid injury.
• Keep the new battery away from children and pets since it can be a choking hazard.
• Watch out for static electricity. Touch a metal object before handling the battery or key fob to ground yourself.

Step 2: Opening the Key Fob

After gathering the tools and ensuring safety, the next step is to open the Hyundai key fob. The process may vary slightly by model but generally requires care and patience. Here’s how to do it:

1. Find the seam: Look at the key fob to locate the seam where the two halves connect. This seam is usually on the side.
2. Pry open the key fob: Take a small flathead screwdriver or a plastic pry tool. Gently insert it into the seam. Apply light pressure and twist carefully to open the key fob.
3. Separate the halves: Once there’s a gap, continue around the edge to fully separate the halves. Be careful not to damage the internal parts.

Common challenges include finding the seam and using too much force, which can cause damage.

If the key fob is dead, it may be harder to figure out how to open it. Use moderate pressure when prying the fob open to avoid breaking it.

Step 3: Battery Replacement

Replacing the battery in your Hyundai key fob can bring it back to life. Follow these steps to ensure proper battery placement and connection.

1. Battery Orientation: Remove the old battery and note how it sits in the compartment. Insert the new battery with the positive side facing the correct direction as marked inside the fob.
2. Connection Verification: Make sure the battery is securely in place. Check that the contacts are clean and making good contact.
3. Final Inspection: Look over the fob to confirm that everything is in place. Check for any corrosion or dirt that could affect the connection.

These steps will help you successfully replace your key fob battery.

Step 4: Reassembly

Reassembling your Hyundai key fob is key for it to work properly. After you put in the new battery, align the two halves of the fob case. Press them together until you hear a click. This sound means everything is secured. Make sure no parts are loose or misaligned during this step.

To check if you reassembled it correctly, do these tests:

1. Lock/Unlock Test: Stand near your vehicle. Press the lock and unlock buttons. Check if the fob responds.
2. Proximity Detection: Approach your locked vehicle to see if it unlocks automatically.
3. Panic Button Test: Press the panic button briefly to make sure it triggers the vehicle’s alarm.

If you run into problems, here are some common issues and fixes.

• Unresponsive Fob: This might happen if the battery is not placed correctly or if the battery doesn’t connect well with the terminals. Check the reassembly to ensure everything is aligned.
• Battery Orientation: If the fob still doesn’t work, check that the battery is facing the right way.
• Professional Help: If problems continue, getting help from a professional might be a good idea.

Model-Specific Instructions

In this section, we will provide detailed instructions for replacing the key fob battery across several popular Hyundai models, including the Elantra, Santa Fe, Sonata, Tucson, and Palisade.

Each model has unique steps due to variations in key fob design, which necessitates tailored guidance to ensure a successful battery replacement.

Elantra Key Fob Battery Replacement

Step 1: Gather the necessary tools for the replacement, which include a small flathead screwdriver and a new CR2032 battery.

Step 2: Locate the small notch on the edge of the key fob.

Step 3: Insert the flathead screwdriver into this notch and gently twist to open the key fob casing.

Step 4: Carefully remove the old battery while noting its position for proper placement of the new one, then insert the new CR2032 battery with the positive side facing upwards.

Step 5: Align the key fob halves and press them together until you hear a click, then test the key fob to confirm successful battery replacement.

Santa Fe Key Fob Battery Replacement

Step 1: Gather Tools

Obtain a small flathead screwdriver and a CR2032 battery, which is commonly used in Hyundai fobs.

Step 2: Locate the Seam

Find the seam along the edge of the key fob. This is where the two halves of the fob meet.

Step 3: Open the Fob

Gently insert the flathead screwdriver into the seam and twist to separate the two halves of the fob.

Step 4: Remove the Old Battery

Note the battery’s orientation, then remove it carefully.

Step 5: Insert the New Battery

Place the new CR2032 battery in the same orientation.

Sonata Key Fob Battery Replacement

Step 1: Locate the small release button on the side of the key fob and press it to remove the mechanical key.

Step 2: Use a flathead screwdriver or a similar tool to gently pry open the key fob case along the seam, which will expose the battery compartment.

Step 3: Remove the old battery from the compartment, noting its orientation for the correct placement of the new battery.

Step 4: Insert the new CR2032 battery into the compartment, ensuring it is positioned correctly according to the orientation you noted.

Step 5: Align the two halves of the key fob and press them together until you hear a click, indicating secure closure.

Then reinsert the mechanical key to complete the process.

Tucson Key Fob Battery Replacement

Step 1: Identify the Model Year

Know your Tucson’s model year, as there are some variations in key fob designs.

Step 2: Gather Tools and New Battery

Obtain a small flathead screwdriver and a CR2032 battery, which is commonly used in these fobs.

Step 3: Open the Key Fob

Locate the small notch or seam on the side of the fob. Use the screwdriver to gently pry it open.

Step 4: Remove Old Battery

Carefully take out the old battery from the compartment.

Step 5: Insert New Battery

Place the new battery in the compartment, ensuring the positive side faces up.

Palisade Key Fob Battery Replacement

Step 1: Gather your materials. You will need a small flathead screwdriver and a new CR2032 battery, which is the standard battery used for the Hyundai Palisade key fob.

Step 2: Locate the small slot on the side of the key fob. This is where you will insert the flathead screwdriver to open the fob.

Step 3: Insert the flathead screwdriver into the slot and gently pry apart the two halves of the key fob. Be careful not to damage any internal components during this process.

Step 4: Once the fob is open, carefully remove the old battery from its compartment. Make sure to note the orientation of the battery as you take it out.

Step 5: Insert the new CR2032 battery into the compartment, ensuring that the positive side is facing upwards (as indicated inside the fob).

Finally, reassemble the key fob by pressing the two halves firmly together until they click into place. Your Hyundai Palisade key fob is now fully functional again.

Kona Key Fob Battery Replacement

Replacing the battery in your Hyundai Kona key fob is a straightforward process that can be accomplished with minimal tools. To ensure the functionality of your key fob, follow these steps:

Step 1: Gather the necessary tools, which include a small flathead screwdriver and a new CR2032 battery.

Step 2: Locate the small notch on the side of the key fob and use the flathead screwdriver to gently pry open the casing.

Step 3: Once the casing is opened, carefully remove the old battery, noting its orientation for the new installation.

Step 4: Insert the new CR2032 battery into the compartment, ensuring that the positive side is facing up.

Step 5: Align the key fob halves and press them together until they securely snap into place.

Following these steps should restore the reliability and range of your Hyundai Kona key fob.

For any specific variations, consult your owner’s manual. Proper maintenance will help ensure your key fob continues to operate seamlessly.

Common Problems and Solutions

After replacing the battery in a Hyundai key fob, users often encounter issues such as the fob not functioning correctly. This can be resolved by ensuring proper battery placement and checking the battery’s charge.

Additionally, some models may require reprogramming the key fob, necessitating a reset procedure that can often be completed at home.

In cases where physical damage occurs during the battery replacement process, exploring repair options such as professional servicing or component replacement can provide effective solutions.

Key Fob Not Working After Battery Change

If your Hyundai key fob isn’t working after you changed the battery, don’t worry. This happens often, and there are a few things you can try to fix it.

1. Reset the Key Fob: Start by removing the battery. Wait a few moments, then put it back in. This simple step can often get it working again.
2. Reprogram the Key Fob: Sometimes, the key fob needs to be reprogrammed. Check your vehicle’s manual for instructions, or ask a professional for help if needed.
3. Troubleshoot Key Fob Issues: Look for common problems. Ensure the battery is making good contact, is placed correctly, and that the internal components aren’t damaged.

A clean battery connection can often solve the issue.

Programming Requirements

Many Hyundai key fobs need specific steps to work after changing the battery. Following these steps is key to making sure your key fob operates properly with your vehicle.

Here’s how to reprogram your Hyundai key fob:

1. Get in the Vehicle: Put the key in the ignition and turn it to the ‘On’ position. Do not start the engine. This begins the reset process.
2. Start Programming Mode: Press and hold the ‘lock’ button on the key fob for a few seconds. Listen for a sound or watch for a light to confirm that the vehicle is now in programming mode.
3. Finish the Process: Turn off the ignition and take out the key. Test the key fob by locking and unlocking the doors to check if it works.

Following these steps helps you restore your Hyundai key fob’s functionality easily.

Physical Damage During Replacement

Replacing the battery in a Hyundai key fob can sometimes cause physical damage. This can happen if the key fob is not handled carefully during the replacement process.

Broken clips and damaged circuitry are common issues. Knowing your repair options can help ensure the key fob works properly after any issues arise.

Here are the main repair options:

1. DIY Fix: This is often the cheapest choice. If you follow clear battery replacement instructions, you can save money. However, you need to be precise and have the right tools to avoid causing more damage.
2. Professional Repair: Using a professional service gives you access to expert help. They can often fix the fob correctly and may offer a guarantee. This option tends to be more expensive.
3. New Key Fob Purchase: If the damage is too severe, you might need to buy a new key fob. This option ensures you get a reliable product, but it usually costs more.
4. Manufacturer Warranty: If your fob is still under warranty, you might get a free replacement.

Here’s a comparison of these options:

Choosing the right repair option depends on how much damage there is and your budget.

Professional vs DIY Replacement

When considering whether to replace a Hyundai key fob battery professionally or through a DIY approach, several factors merit attention.

Cost is a primary consideration, as professional services may charge for both labor and materials, whereas a DIY replacement typically only involves the cost of the battery itself.

Additionally, time requirements differ; while DIY might offer immediate gratification, professional services might ensure a quicker and more reliable outcome, potentially affecting warranty coverage depending on the service provider’s policies.

Cost Comparison

Replacing a Hyundai key fob battery can be done in two main ways: professional service or do-it-yourself (DIY). The costs for each option can differ quite a bit.

When you go to a dealership or an auto service, you’ll pay for both the battery and labor. This can make the total cost higher. On the other hand, if you choose to replace the battery yourself, you only need to buy the battery, which saves you money.

Here’s a simple cost comparison:

Professional services offer expertise but come with extra costs because of labor fees. DIY replacement is straightforward and often only requires buying a new battery.

Most Hyundai owners find the DIY approach easy and accessible with minimal tools.

Time Requirements

When replacing a Hyundai key fob battery, consider the time required for both professional and DIY options. Here’s a breakdown of the time involved for each method:

1. Professional Replacement: Choosing a professional service can help avoid mistakes. However, you may need to schedule an appointment. Depending on the service center’s availability, this can take a few hours to a couple of days.

The actual battery replacement is quick, but waiting times can vary.

2. DIY Replacement: If you decide to replace the battery yourself, you can act immediately without waiting. This method usually requires buying a compatible battery and following easy steps.

The process typically takes 10 to 20 minutes. Familiarity with the steps and having the right tools is necessary.

3. Travel Time: If you choose professional help, remember to factor in Travel Time to the service center. This can add to the total time spent, especially if the location is not close.

These time factors can help you make a better choice for replacing your Hyundai key fob battery.

Warranty Considerations

Warranty coverage affects your choice between getting a Hyundai key fob battery replaced by a professional or doing it yourself. Here’s what you need to know:

1. Professional Replacement: Getting help from a professional usually keeps your warranty safe. If your key fob is still under warranty, a Hyundai dealership often replaces the battery at no extra cost.

This option reduces the chance of damage since certified technicians handle the work.

2. DIY Replacement: Replacing the battery on your own can risk voiding your warranty. If you open the key fob improperly, this could lead to issues.

Although it may save you money, you must be careful to avoid damage, which might lead to costs if your warranty claim is rejected.

3. Warranty Implications: Before making a decision, check your warranty details. Some warranties may not cover DIY repairs, which could affect your choice for replacing the Hyundai key fob battery.

Considering these points will help you make an informed decision regarding your key fob battery replacement.

Maintenance and Prevention

To extend the battery life of your Hyundai key fob, store it away from sources of interference and extreme temperatures, and avoid pressing buttons unnecessarily.

Regular maintenance includes checking the battery compartment for corrosion and ensuring all connections are clean and secure.

Seek professional help if the key fob fails to function properly despite battery replacement or if physical damage is evident.

How to Extend Battery Life

To make your Hyundai key fob battery last longer, follow these straightforward tips:

1. Limit Unnecessary Usage: Only press the buttons when needed. Using the remote functions too often can quickly drain the battery.

Save the battery by using it only for essential tasks.

2. Store in a Safe Environment: Keep the key fob away from extreme temperatures. High heat and moisture can harm the battery, causing it to wear out faster.

When not in use, store it in a cool, dry place.

3. Regularly Check Battery Health: Check the battery’s performance from time to time. If the range or responsiveness decreases, consider replacing the battery.

Keeping an eye on the battery can help avoid unexpected issues.

Regular Maintenance Tips

To keep your Hyundai key fob in good shape, follow these maintenance tips:

1. Regular Inspection: Look at your key fob often. Check for any damage or wear on the buttons and casing. If it’s not working well or if you see physical damage, you may need to replace the battery.
2. Proper Storage: Store your key fob in a dry spot when you’re not using it. Avoid extreme temperatures and moisture. These conditions can drain the battery quickly and may lead to needing a replacement sooner.
3. Battery Monitoring: Pay attention to how your key fob works. If it starts to lose power, it might be time to change the battery. Knowing how to change the battery yourself can save you time and effort later on.

Following these tips helps your key fob stay functional and ensures easy access to your vehicle.

When to Seek Professional Help

Sometimes, your Hyundai key fob may not work properly, even if you take good care of it. Here are some situations where you should get professional help:

1. Key Fob Not Working After Battery Replacement: If your key fob still doesn’t respond after you replace the battery, there might be a bigger issue. This could be a problem with the internal parts** or it may need to be synced again with your vehicle.

Getting a professional to check it can help fix the problem.

2. Damaged Key Fob: If your key fob has cracks or has been exposed to water, it may not work right. A professional can look at it and decide if it needs to be repaired or replaced.

Trying to fix it yourself could make it worse.

3. Programming Key Fob: If you have a new key fob or need to reprogram one that isn’t working, you will need professional help.

Programming involves specific steps and tools to make sure the fob works with your car correctly.

Getting professional assistance ensures that your Hyundai key fob works well for a long time.

Emergency Procedures

In situations where a Hyundai key fob battery fails unexpectedly, knowing how to open your car quickly is crucial.

Begin by manually accessing the vehicle using the hidden key within the fob, and explore temporary solutions such as holding the fob close to the start button to activate the vehicle.

Additionally, consider backup entry methods, like using a mechanical key or the smartphone app, to ensure seamless access in emergencies.

How to Open Car With Dead Key Fob

A dead key fob can make it hard to get into your Hyundai. Here’s how to open it in an emergency:

1. Find the Manual Key: Your key fob has a hidden mechanical key. Look for a release button or latch to open the fob. Take out the mechanical key. This key will unlock the driver’s side door.
2. Use the Keyhole: Look for the keyhole on the driver’s door handle. Sometimes, it’s under a small cover. Gently remove the cover. Insert the mechanical key and turn it to unlock the door.
3. Get Inside the Vehicle: Once the door is open, the alarm might go off. To turn it off, place the dead key fob in the slot or press the start button with the fob. This will recognize the fob, allowing you to start the car and replace the key fob battery.

Temporary Solutions

When your Hyundai key fob stops working, you can try some quick fixes to keep using your car. Here are some easy solutions for key fob problems:

1. Clean the Battery Contacts: Dust or corrosion can interfere with the battery. Take out the battery and wipe the contacts with a soft cloth. This may temporarily fix the issue.
2. Use the Emergency Key: Most Hyundai fobs have a mechanical key inside. Use this key to unlock the driver’s door. This allows you to get into your car while you sort out the key fob issue.
3. Reprogram the Key Fob: Sometimes, reprogramming the key fob can fix connection problems. Check your owner’s manual for steps, or ask a Hyundai service center for help.

These solutions can help you handle key fob problems quickly, allowing you to keep using your vehicle.

Backup Entry Methods

Backup entry methods are important for accessing your vehicle when your key fob stops working. Hyundai provides several ways to enter your car in such situations.

One option is the Hyundai emergency key. This physical key is hidden inside your key fob. You can use it to unlock your car door quickly without needing any special tools. It’s handy when you can’t replace the key fob battery right away.

Another option is the Hyundai keyless entry system. If your vehicle allows smartphone pairing, you can unlock your car using an app. This method is convenient, but you need to set it up beforehand, and your phone battery must be charged.

You can also consider Hyundai key replacement services. This means getting a new key fob from a dealership or a certified locksmith. It offers a long-term fix for key fob problems.

People Also Ask

Can I replace my Hyundai key fob battery myself?

Yes, you can replace your Hyundai key fob battery yourself.

It’s easy! Most Hyundai key fobs use a CR2032 battery.

Just open the key fob with a small screwdriver, swap out the old battery for a new one, and snap it back together to test it.

How much does Hyundai key fob battery replacement cost?

Replacing a Hyundai key fob battery usually costs between $3 and $10.

You can buy the battery at stores or online.

If you go to a Hyundai dealership, it might cost a bit more because of service fees, but they will do it correctly for you.

What happens if my key fob battery dies while driving?

If your key fob battery dies while driving, your car will still run.

However, if you turn off the engine, you might have trouble starting it again without a working key fob battery.

It’s smart to check the battery and keep a spare handy.

Do I need to reprogram my key fob after battery replacement?

After you change the battery in your Hyundai key fob, you usually don’t need to reprogram it.

Most Hyundai key fobs keep their settings.

If it doesn’t work, check the battery is in right or contact a dealership for help.

Where can I buy a Hyundai key fob battery?

You can buy a Hyundai key fob battery at places like AutoZone, O’Reilly Auto Parts, or Advance Auto Parts.

You can also find batteries at stores like Best Buy or Walmart.

Online shopping at Amazon or eBay is easy too.

Hyundai dealerships have the right batteries as well.

How often should I change my Hyundai key fob battery?

You should change your Hyundai key fob battery every 1 to 2 years.

If you notice the signal is weak or you need to press buttons more than once, it might be time for a new battery.

Keeping a spare battery is also a good idea!

What tools do I need to change my key fob battery?

To change the battery in your Hyundai key fob, you need a small flat-head screwdriver, tweezers, and maybe a Phillips screwdriver.

Most Hyundai key fobs use a CR2032 battery. Make sure to have the right battery before you start.

Why isn’t my key fob working after battery replacement?

If your Hyundai key fob isn’t working after changing the battery, check if the battery is placed correctly.

If it is, try resetting or reprogramming the fob.

Also, look for any damage inside the fob or check for interference from other devices.