Replace your 2019 Hyundai Tucson key fob battery with a CR2032 lithium coin battery. Here’s how: Press the release button to remove the mechanical key, then gently pry open the fob using a flathead screwdriver. Swap out the old battery for a new CR2032, with the positive side facing up. Close the fob and test the buttons to ensure it’s working. Save money by buying the battery from AutoZone or Amazon for $1-$5. For more tips and options, keep exploring!
What Battery Does a 2019 Hyundai Tucson Key Fob Use?
The 2019 Hyundai Tucson key fob uses a CR2032 lithium coin cell battery with a 3V voltage and 20mm diameter.
You’ll also find compatible options from brands like Energizer and Duracell, which offer similar capacities at a slightly lower price range.
When choosing alternatives, consider those with anti-corrosion coatings for longevity.
Battery Specifications
A 2019 Hyundai Tucson key fob uses a CR2032 battery.
It’s 20mm wide, 3.2mm tall, and provides 3 volts.
These batteries usually last 2-3 years.
Keep the key fob away from heat and moisture to maintain performance.
Compatible Options
A 2019 Hyundai Tucson key fob needs a CR2032 battery. It’s a 3V lithium coin cell, 20mm wide, 3.2mm thick. Various brands are available.
| Battery Type | Brand Examples | Capacity |
|---|---|---|
| CR2032 (OEM) | Hyundai, Panasonic | 220mAh |
| CR2032 Alternatives | Energizer, Duracell | 210–240mAh |
| CR2025/CR2016 | Sony, Maxell | 160–170mAh |
CR2032 from Hyundai or Panasonic is reliable. Energizer and Duracell may be cheaper but still last long. CR2025 and CR2016 fit but hold less charge, which may impact use.
How Do You Replace a 2019 Tucson Key Fob Battery?
Remove the key, open the fob, and replace the CR2032 battery. Ensure the positive side faces up. Close the fob and test the buttons.
Steps to Replace a 2019 Hyundai Tucson Key Fob Battery:
- Remove the Key:
- Press the release button.
- Pull out the physical key.
- Open the Key Fob:
- Use the key to gently pry open the fob casing.
- Take Out the Old Battery:
- Locate the CR2032 battery.
- Use a small flathead screwdriver to carefully remove it.
- Insert New Battery:
- Place a new CR2032 battery with the positive (+) side facing up.
- Close the Fob:
- Snap the casing back together until it clicks.
- Test the Key Fob:
- Press any button to see if the LED lights up.
Step 1: Opening the Key Fob
To open your Hyundai Tucson key fob, press the release button to remove the physical key, then use it to gently pry open the fob.
You’ll need a small flathead screwdriver or a plastic pry tool for this task.
Be cautious not to force the casing open to prevent damaging the clips.
Opening Methods
Use the key or a flathead screwdriver to open your Hyundai Tucson key fob safely. Press the release button and slide out the physical key. Gently pry open the case or insert the screwdriver in the side notch and twist carefully.
- Use the key: Insert into the notch and apply gentle pressure to open.
- Flathead screwdriver: Place in the side slot, twist gently.
- Avoid force: Prevent breaking clips or damaging the case.
- Be patient: Take your time for safe access.
Required Tools
To safely open your Hyundai Tucson key fob, you’ll need a few tools:
- Small Flathead Screwdriver: For opening the case gently.
- Plastic Pry Tool: Prevents scratches.
- Replacement CR2032 Battery: Fresh power source.
- Clean Cloth: Keeps it clean.
Use these tools to manage your key fob’s battery and parts carefully.
Step 2: Removing Old Battery
To safely remove the old battery, locate the battery compartment and use a screwdriver to gently lift the battery from its slot.
Avoid using excessive force, as this can break clips or damage the key fob.
It’s important not to touch the circuit board with metal tools to prevent any potential harm to the electronics.
Removal Process
3. Dispose of the used battery properly to protect the environment.
4. Check the battery compartment for dirt or rust.
This helps keep the key fob working well.
Common Mistakes
Avoid breaking clips by not forcing open the key fob case.
Use plastic tools to prevent damage to the circuit board.
Place the battery with the positive side up.
Gently lift the battery without excess force.
Clean contacts before installing the new battery.
Common Mistakes to Avoid:
- Touching the Circuit Board: Use plastic tools to avoid damage.
- Ignoring Battery Orientation: Positive side should face up.
- Using Excessive Force: Lift gently with a screwdriver.
- Neglecting Clean Contacts: Ensure contacts are clean before battery installation.
Step 3: Installing New Battery
Place the new CR2032 battery with the plus side facing up in the battery compartment.
After securing the battery, snap the key fob casing back together until you hear a click, ensuring everything is tightly sealed.
To confirm successful installation, press any button on the fob and check if the LED lights up or test by starting your car.
Installation Steps
Insert a CR2032 battery into your 2019 Hyundai Tucson key fob with the positive (+) side up. Align it without forcing. Snap the casing closed, ensuring no gaps remain.
- Insert the battery with the positive side up.
- Ensure the battery is snug in the slot.
- Snap the casing halves together securely.
- Check for gaps to keep out dust and moisture.
Testing Tips
Ensure your Hyundai Tucson key fob works after battery change by pressing any button. If the LED lights up, the battery is installed correctly.
- Test range: Walk away and press lock/unlock.
- Start car: Ensure it starts with the fob.
- Check assembly: Casing should snap securely.
- Verify features: Test panic alarm and trunk release.
What Are the Signs of a Dying Key Fob Battery?
A dying key fob battery shows signs like reduced keyless entry range and unresponsive buttons.
You’ll notice you have to be closer to your vehicle to unlock it, and you may see a “Key Not Detected” warning on your dashboard.
These performance issues, like needing multiple clicks to lock or unlock, suggest it’s time to replace the battery.
Warning Indicators
Low battery signs in a key fob: reduced range, dashboard alerts, unresponsive buttons, multiple clicks needed.
- Reduced Range: You need to be closer to the car to unlock it.
- Dashboard Alerts: “Key Not Detected” shows up inside the vehicle.
- Unresponsive Buttons: Buttons don’t work or respond slowly.
- Multiple Clicks Needed: Repeatedly pressing buttons to lock/unlock doors.
Fix these issues to prevent lockout.
Performance Issues
Normal key fob lets you lock/unlock your car from 30-50 feet with one click. Low battery limits range to 5-10 feet, needs multiple clicks, and triggers “Low Key Battery” alerts on your dashboard.
| Normal Behavior | Low Battery Behavior |
|---|---|
| Instant door lock/unlock | Multiple clicks required |
| 30–50 ft range | 5–10 ft range |
| No dashboard warnings | Frequent “Low Key Battery” alerts |
Where Can You Buy a Replacement Battery?
You can buy a replacement CR2032 battery for your Hyundai Tucson key fob from retailers like AutoZone, Amazon, and eBay, with prices ranging from $1 to $5.
Check the expiration date and opt for brands with anti-corrosion coatings like Panasonic.
Consider the pros and cons of buying in-store versus online, as in-store purchases might be more convenient, while online shopping could offer bulk discounts.
Retailer Options
Find a CR2032 battery for your 2019 Hyundai Tucson key fob at AutoZone, Amazon, or eBay. Prices vary from $1 to $5. AutoZone offers in-store sales. Amazon and eBay have online bulk options.
| Retailer | Price (CR2032) | Notes |
|---|---|---|
| AutoZone | $3–$5 | In-store, no installation |
| Amazon | $1–$3 | Bulk packs available |
| eBay | $2–$4 | Branded/off-brand options |
Quality Considerations
Check the expiration date when buying a 2019 Hyundai Tucson key fob battery.
Choose reputable brands like Panasonic or Energizer.
Look for anti-corrosion features and a capacity of at least 220mAh.
Don’t compromise quality for price.
- Brand Reliability: Choose known brands for consistent performance.
- Battery Quality: Anti-corrosion coatings help extend lifespan.
- Capacity: Minimum 220mAh is recommended.
- Price vs. Quality: Invest in quality for long-term savings.
How Much Does Key Fob Battery Replacement Cost?
Replacing a Hyundai Tucson key fob battery yourself costs between $1 and $5.
You can easily find CR2032 batteries at stores like AutoZone or online platforms like Amazon, where prices vary slightly based on brand and quantity.
If you prefer professional help, expect to pay $50 to $100 at a dealership or $10 to $30 at a locksmith.
Battery Costs
Replacing a Hyundai Tucson key fob battery costs $1-$5 if you do it yourself. Dealerships may charge $50-$100. Batteries last 2-3 years.
| Battery Type | Brand Examples | Price Range |
|---|---|---|
| CR2032 (OEM) | Hyundai, Panasonic | $2–$5 |
| CR2032 Alternatives | Energizer, Duracell | $1–$4 |
| CR2025/CR2016 | Sony, Maxell | $1–$3 |
OEM batteries are reliable, while alternatives save money. Check and replace batteries regularly.
Professional Service
Hyundai Tucson key fob battery replacement costs differ.
Dealerships charge $50-$100, including battery and labor.
Locksmiths charge $10-$30, offering a cheaper option.
DIY costs $1-$5, needing some skill.
Retail purchases also cost $1-$5 for self-replacement.
- Dealership Service: $50–$100
- Includes battery and labor.
- Locksmith Service: $10–$30
- More affordable, often quicker.
- DIY Replacement: $1–$5
- Most cost-effective, requires some skill.
- Retail Purchase: $1–$5
- Buy and replace at home for savings.
Choose based on your budget and needs.
What Should You Do If Your Key Fob Stops Working?
If your key fob stops working, replace the battery or clean the contacts.
You can also reset the key fob by removing the battery for 30 seconds.
For emergency access, use the hidden key to unlock the door or hold the fob against the start button.
Troubleshooting Steps
Replace the battery in your Hyundai Tucson key fob to fix non-responsiveness.
- Check battery placement for proper contact.
- Clean contacts with rubbing alcohol on a cotton swab.
- Reset by removing and reinserting the battery after 30 seconds.
- Test the fob’s range; proximity issues may suggest battery problems or interference.
Emergency Access
Use the hidden key in your Hyundai Tucson fob to unlock the driver’s door if the fob fails. Hold the fob against the start button to start the car. Contact a locksmith for help if needed.
| Backup Method | Steps | Pros |
|---|---|---|
| Emergency Key | Unlock the driver’s door | Quick and straightforward |
| Dead Fob Ignition | Hold fob against start button | Easy ignition access |
| Call a Locksmith | Professional entry assistance | Reliable and secure |
People Also Ask
How long does a 2019 Tucson key fob battery last?
A 2019 Hyundai Tucson key fob battery usually lasts 2 to 3 years.
Its life depends on how often you use it and the conditions it faces, like extreme temperatures.
Using good CR2032 batteries and keeping an eye on its performance can help it last longer.
Can I replace my Tucson key fob battery myself?
Yes, you can change your Tucson key fob battery by yourself.
Use a small flathead screwdriver to open the fob, replace the old CR2032 battery with a new one, and close it up.
This easy task takes just a few minutes.
What happens if key fob battery dies while driving?
If your key fob battery dies while driving, the car will keep running.
The engine doesn’t need the key fob to stay on.
But once you stop the car, you can’t restart it until you change the battery.
Always keep a spare battery handy.
Does AutoZone replace key fob batteries?
AutoZone doesn’t change key fob batteries, but they sell them and show you how to do it yourself.
They’ve CR2032 batteries for cars like the Hyundai Tucson. You can buy one for $3 to $5 and follow their easy steps to replace it.
Wrapping Up
Replacing the battery in your 2019 Hyundai Tucson key fob is simple and doesn’t require an epic journey. Just grab a CR2032 battery and follow these steps. Once done, you’ll feel relieved and ready to hit the road confidently.