Maintaining your Hyundai’s key is crucial for ensuring its smooth functionality. Over time, the battery in the key may deplete, leading to issues with unlocking the vehicle or starting the engine. Changing the key battery is a simple yet essential task that can easily be done at home. By following a few straightforward steps, you can quickly and effectively restore the functionality of your Hyundai key.
Before embarking on the battery replacement process, it’s important to gather the necessary tools. You’ll need a small Phillips head screwdriver and a fresh CR2032 battery, which is commonly used in Hyundai keys. Once you have these items, you can begin the battery replacement procedure. Begin by locating the small screw on the back of the key fob. Carefully unscrew it and gently pry open the fob’s housing.
Inside the fob, you’ll find the old battery. Use a small screwdriver or your fingernail to carefully remove it. Take note of its position and polarity. Insert the new CR2032 battery into the fob, ensuring that its polarity matches the old battery. Carefully align the fob’s housing and press it back together. Finally, screw the small screw back into place to secure the fob.
Locate the Key Battery Compartment
Identifying the location of the key battery compartment in your Hyundai vehicle is crucial before proceeding with the replacement process. Different Hyundai models may have varied key designs, and the battery compartment’s placement can differ accordingly. Here’s a detailed guide to help you locate the battery compartment based on your Hyundai’s key type:
1. Flip Key:
For flip keys, the battery compartment is typically found on the back of the key fob. Look for a small, often recessed button or lever that, when pressed or slid, will release the back panel, revealing the battery.
2. Keyless Entry Remote:
If your Hyundai has a keyless entry remote, the battery compartment is usually located inside the remote itself. Release the mechanical key by pressing the button on the side, and the remote’s back panel should slide off, providing access to the battery.
3. Smart Key (Proximity Key):
Smart keys, also known as proximity keys, often have a hidden battery compartment for increased security. To locate it:
| Step | Description |
|---|---|
| a) |
Remove the mechanical key from the smart key by pressing the release button. |
| b) |
Locate a small rubber pad or cover on the back of the smart key, usually near the bottom. |
| c) |
Gently pry open the rubber pad or cover using your fingernail or a small tool. |
| d) |
The exposed battery compartment will contain the key battery. |
Insert the New Battery
With the positive side facing up, carefully align the new battery inside the key fob and slide it into place. Ensure it fits snugly and is held firmly within the fob.
Note: Different Hyundai models may require a CR2025 or CR2032 battery. Refer to your owner’s manual or key fob for the correct battery type.
Detailed Steps:
1.
Verify that you have the correct battery type (CR2025 or CR2032) by checking the owner’s manual or key fob.
2.
Remove the old battery by gently prying it out with a small flathead screwdriver or a key.
3.
Clean the battery terminals inside the key fob using a cotton swab dipped in rubbing alcohol.
4.
Orient the positive side of the new battery facing upwards, as indicated by the “+” symbol.
5.
Carefully slide the new battery into the key fob, aligning it properly.
6.
Gently press down on the battery to ensure it is firmly seated in the fob. Check that the key fob lid fits properly and closes securely.
7.
Test the key fob to ensure it operates correctly by pressing a button and listening for a click or the key fob’s LED light turning on.
Close the Battery Compartment
7. Close the battery compartment by sliding the cover back into place until it snaps shut. Make sure the cover is securely closed to prevent the battery from falling out or becoming loose. If the cover does not close properly, check if there are any obstructions or debris preventing it from closing. Ensure that the cover is aligned correctly and push firmly until it clicks into place.
Here’s a summary of the steps to change a Hyundai key battery and close the battery compartment:
| Step | Action |
|---|---|
| 1 | Remove the key from the ignition. |
| 2 | Locate the battery compartment. |
| 3 | Slide the cover of the battery compartment open. |
| 4 | Remove the old battery. |
| 5 | Insert the new battery. |
| 6 | Close the battery compartment cover. |
How to Change Hyundai Key Battery
1. Locate the Key Battery
Locate the small, usually black plastic cover on your Hyundai key fob.
2. Remove the Key Blade
Most Hyundai keys have a key blade that folds into the fob. Push the button or lever on the side of the fob to release the blade.
3. Pry Open the Key Fob
Using a flathead screwdriver or your fingernail, gently pry open the key fob. Be careful not to damage the key components.
4. Replace the Battery
Inside the key fob, you’ll find the old battery. Remove it and replace it with the new battery, matching the positive and negative terminals as indicated.
5. Close the Key Fob
Align the two halves of the key fob and press them back together securely.
6. Test the Key
Turn the key in the ignition or use the remote buttons to verify that it’s working properly.
7. Dispose of the Old Battery
Dispose of the old battery responsibly at a local electronics recycling center or battery disposal location.
8. Clean the Key Fob
While the key fob is open, use a cotton swab with rubbing alcohol to clean any dirt or debris that may have accumulated.
9. Check for Signs of Damage
Inspect the key fob for any cracks, loose components, or damaged wires. If you find any issues, consult a professional locksmith.
10. Additional Tips for Key Battery Maintenance
* Replace the battery at least every two years or as soon as you notice a decrease in performance.
* If your key fob gets wet, remove the battery and dry it thoroughly before replacing it.
* Avoid extreme temperatures, as they can shorten the battery’s life.
* Test the key fob regularly to ensure it’s working properly.
* Keep a spare battery in your car or wallet for emergencies.
How to Change Hyundai Key Battery
Replacing the battery in your Hyundai key is a simple and straightforward process that can be completed in just a few minutes. Here’s a step-by-step guide to help you change the battery in your Hyundai key:
Step 1: Gather your materials
You will need a new CR2032 battery and a small flathead screwdriver or pry tool to change the battery in your Hyundai key.
Step 2: Remove the key from the key fob
Locate the small button on the side of the key fob and press it. This will release the key from the fob.
Step 3: Pry open the key
Use the small flathead screwdriver or pry tool to carefully pry open the key. Be careful not to damage the key or the fob.
Step 4: Remove the old battery
Once the key is open, you will see the old battery. Use your fingernail or a small tool to carefully remove the battery.
Step 5: Insert the new battery
Take the new CR2032 battery and insert it into the key, positive side up. Be sure to align the battery correctly before inserting it.
Step 6: Close the key
Once the new battery is inserted, carefully close the key. Make sure that the key is snapped shut securely.
Step 7: Test the key
Insert the key back into the key fob and press the buttons to test it. The key should now work properly.
People Also Ask About How to Change Hyundai Key Battery
How do I know if my Hyundai key battery is dead?
If your Hyundai key is not working properly, it is possible that the battery is dead. Here are some signs that your Hyundai key battery may be dead:
- The key does not work from a distance.
- The key has to be pressed multiple times to work.
- The key fob is not lighting up.
Where can I buy a replacement Hyundai key battery?
You can purchase a replacement Hyundai key battery at most hardware stores, auto parts stores, and online retailers.
How much does it cost to replace the battery in a Hyundai key?
The cost of replacing the battery in a Hyundai key varies depending on the type of key and the location where you purchase the battery. However, the average cost is between $5 and $10.
