How to Effortlessly Replace Your Hyundai Key Battery

Sustaining a practical Hyundai key’s important for making certain handy car entry. Nonetheless, over time, the important thing battery might deplete, hindering its efficiency. Fortuitously, changing the Hyundai key battery is an easy process that each car proprietor can accomplish with minimal effort. By following a number of easy steps and using on a regular basis family instruments, you may restore your Hyundai key to full performance in minutes, saving you the inconvenience and expense of visiting an automotive locksmith or dealership.

To provoke the battery substitute course of, you’ll require a flat-head screwdriver or a small, pointed object like a paperclip. Start by finding the small screw or launch button located on the again of the important thing fob. Fastidiously insert the screwdriver or paperclip into the designated slot and gently pry the important thing fob open. As soon as the important thing fob is separated into two halves, you’ll acquire entry to the battery compartment. Use a pair of tweezers or your fingers to cautiously take away the outdated battery. Observe the orientation of the battery, because it should be inserted accurately to make sure correct functioning.

Subsequent, align the brand new battery with the terminals contained in the compartment, making certain the optimistic (+) and adverse (-) ends correspond with the markings on the battery holder. Securely insert the brand new battery into place, ensuring it sits flush inside the compartment. Reassemble the important thing fob by snapping the 2 halves collectively, making certain they match snugly. Lastly, take a look at the important thing fob by urgent a button. If the important thing fob illuminates or triggers a response from the car, you’ve got efficiently changed the battery.

Gathering Crucial Instruments

Earlier than you start the method of adjusting your Hyundai key battery, it is important to assemble all the required instruments and supplies. Here is an in depth listing of what you will want:

1. CR2032 Coin Battery

The Hyundai key fob usually makes use of a CR2032 coin battery. This small, spherical battery is often utilized in varied digital units, together with automotive key fobs. Make sure you buy the proper battery kind to keep away from any compatibility points.

2. Screwdriver (Optionally available)

Relying on the mannequin and yr of your Hyundai, it’s possible you’ll or might not want a screwdriver to open the important thing fob. Some fobs have a small screw that must be eliminated to entry the battery compartment, whereas others have a snap-on design that may be opened by hand.

In case your key fob requires a screwdriver, select a small flathead or Phillips screwdriver that matches the screw dimension. Keep away from utilizing extreme drive when unscrewing to forestall injury to the important thing fob.

3. Delicate Fabric or Paper Towel

A tender fabric or paper towel is helpful for cleansing any mud or particles from the battery compartment and the battery contacts. A clear floor will guarantee good electrical contact and stop future points.

4. Gloves (Optionally available)

Carrying gloves whereas dealing with the battery is beneficial to forestall any static discharge or unintentional contact with the battery terminals. Nonetheless, it isn’t necessary until you’ve got issues about electrostatic discharge.

5. New Key Fob (Optionally available)

If the battery change doesn’t resolve any points together with your key fob or if the fob is broken, it’s possible you’ll want to interchange the complete key fob. Contact your native Hyundai dealership or a certified locksmith for a brand new key fob.

Eradicating the Key Fob Cowl

Utilizing a Small Screwdriver

1. Find the small, hidden screw that holds the important thing fob cowl in place. This screw is usually situated both on the aspect or again of the fob.
2. Insert the tip of a small flat-head or Phillips screwdriver into the screw and punctiliously flip it counterclockwise to loosen it. Don’t overtighten or strip the screw.
3. As soon as the screw is free, gently pry open the important thing fob cowl utilizing your fingers or a plastic instrument. Watch out to not injury the fragile plastic elements inside.

Utilizing a Key or Coin

1. Examine the important thing fob for a small notch or slot designed for opening the duvet. That is normally situated on one of many edges.
2. Insert the sting of a key or a small coin into the notch and gently pry open the duvet. Use cautious leverage to keep away from breaking the duvet.
3. As soon as the duvet is partially open, use your fingers to separate it utterly from the fob.

Particular Directions for Varied Hyundai Key Fob Fashions

Mannequin Cowl Removing Methodology
Hyundai Elantra (2017-2022) Use a flat-head screwdriver to take away the screw on the again of the fob
Hyundai Sonata (2015-2023) Use a Phillips screwdriver to take away the screw on the aspect of the fob
Hyundai Tucson (2016-2022) Use a key or coin to pry open the duvet from the notch on the aspect
Hyundai Santa Fe (2019-2022) Use a small flat-head screwdriver to take away the screw on the again of the fob
Hyundai Palisade (2020-2023) Use a Phillips screwdriver to take away the screw on the aspect of the fob

Further Suggestions

* Deal with the important thing fob rigorously to keep away from damaging its delicate parts.
* When you encounter any difficulties opening the duvet, search skilled help from a locksmith or Hyundai dealership.
* Maintain the screw in a protected place to forestall it from getting misplaced.
* After changing the battery, press all buttons on the important thing fob to make sure correct performance.

Inserting the New Battery

After you have retrieved the battery compartment, it’s now time to insert the brand new battery. Nonetheless, earlier than you accomplish that, you will need to take a quick second to make sure that the brand new battery is correctly oriented. The optimistic finish of the battery must be dealing with upward, in direction of the highest of the compartment. The adverse finish of the battery must be dealing with downward, in direction of the underside of the compartment. When you set up the battery within the mistaken orientation, it won’t work correctly and will injury the important thing fob.

With the battery correctly oriented, rigorously slide it into the compartment. You need to really feel a slight click on because the battery snaps into place. As soon as the battery is in place, use your finger to softly press down on it to make sure that it’s securely mounted.

Suggestions for Inserting the New Battery

  • Use a clear fabric or tissue to deal with the battery. This can assist to forestall filth or oil from getting on the battery terminals.
  • Don’t contact the battery terminals together with your naked arms. This might trigger the battery to quick circuit.
  • If you’re having problem inserting the battery, attempt utilizing a small pair of tweezers to softly nudge it into place.
  • As soon as the battery is inserted, use your finger to softly press down on it to make sure that it’s securely mounted.
Battery Orientation
CR2032 Optimistic (+) aspect dealing with up
CR1620 Optimistic (+) aspect dealing with up
CR2025 Optimistic (+) aspect dealing with up

The best way to Change Hyundai Key Battery

Step 1: Collect Supplies

You’ll need a brand new CR2032 coin battery, a small flathead screwdriver or key, and a clear work floor.

Step 2: Take away the Key from the Fob

Find the small button on the again of the important thing fob. Press and maintain the button whereas pulling the important thing straight out of the fob.

Step 3: Take away the Again Cowl

Use the flathead screwdriver to softly pry open the again cowl of the important thing fob. Begin on the nook and work your approach round till the duvet comes off.

Step 4: Take away the Outdated Battery

Find the outdated battery within the battery compartment. Use your fingernail or a pointy object to softly carry the battery out.

Step 5: Insert the New Battery

Place the brand new battery within the battery compartment with the optimistic (+) aspect dealing with up. Be certain the battery is aligned accurately.

Aligning the Battery Correctly

The optimistic (+) aspect of the battery must be dealing with the aspect of the important thing fob with the metallic contacts. The adverse (-) aspect of the battery must be dealing with the aspect of the important thing fob with the plastic again cowl.

To make sure correct alignment, comply with these steps:

1. Be certain the optimistic (+) aspect of the battery is aligned with the metallic contacts on the important thing fob.
2. Gently press down on the battery till it clicks into place.
3. Examine the battery to ensure it’s seated accurately and never touching any metallic parts.

Step 6: Exchange the Again Cowl

Align the again cowl with the important thing fob and gently snap it into place. Be certain the duvet is safe and there are not any gaps across the edges.

Step 7: Take a look at the Key Fob

Press the lock or unlock button on the important thing fob to check whether it is working correctly. If the important thing fob isn’t responding, verify the battery alignment and connections.

Step 8: Re-attach the Key

Insert the important thing again into the important thing fob till it clicks into place.

Step 9: Clear the Key Fob

Use a moist fabric to softly wipe down the important thing fob and take away any filth or particles.

Step 10: Retailer the Key Fob

Retailer the important thing fob in a dry and protected place. Keep away from exposing it to excessive warmth or moisture.

Changing the Battery Compartment Cowl

After you have efficiently eliminated the important thing blade and accessed the battery compartment, it is time to change the duvet. This step is essential to make sure the right functioning and safety of the important thing’s battery and digital parts.

Here is an in depth information on easy methods to change the battery compartment cowl:

1. Aligning the Cowl

Fastidiously align the substitute cowl over the battery compartment. Be certain it matches snugly and securely with none gaps or misalignments.

2. Sliding the Cowl in Place

After you have aligned the duvet, gently slide it again into place. Apply a slight quantity of stress to make sure it’s firmly seated.

3. Making use of Stress

Use your fingers or a small instrument, similar to a screwdriver or needle, to use light stress across the edges of the duvet. This can assist it snap into place correctly.

4. Checking for a Safe Match

Wiggle or pull on the duvet barely to verify whether it is safe and will not come free. If it strikes or comes aside, repeat steps 2 and three.

5. Inspecting the Match

Visually examine the duvet to make sure it matches flush with the important thing physique and there are not any gaps or protrusions.

6. Testing the Key

Insert the important thing into the ignition or door lock and switch it to ensure it features accurately. If the important thing doesn’t work or if there are any points, verify the battery and connections once more.

7. Storing the Spare Cowl

When you changed the duvet with a spare, bear in mind to retailer the outdated or broken cowl safely for future use or as a backup.

8. Further Suggestions for Changing the Cowl

– Keep away from utilizing extreme drive when changing the duvet, as it might injury the plastic parts.
– If the duvet is tough to slip in, verify for any obstructions or particles which may be stopping it from becoming correctly.
– Use a tender fabric or tissue to scrub any filth or grime from the duvet earlier than putting in it.
– If the duvet nonetheless does not match correctly or the important thing malfunctions after changing it, seek the advice of knowledgeable locksmith or your car’s dealership for help.

9. Troubleshooting Battery Compartment Cowl Points

When you encounter issues with the battery compartment cowl, listed below are some widespread points and options:

Problem Resolution
Cowl will not slide in Examine for particles or obstruction. Guarantee the duvet is aligned accurately.
Cowl falls off simply Exchange the duvet with a brand new one. Guarantee it’s firmly seated and snaps into place.
Battery falls out Exchange the battery compartment cowl. Guarantee it matches tightly and isn’t broken.

10. Significance of a Safe Battery Compartment Cowl

A correctly fitted battery compartment cowl is crucial for a number of causes:

– It protects the battery from bodily injury and prevents it from falling out.
– It ensures a safe connection between the battery and the important thing’s digital parts.
– It guards towards moisture and dirt, which might injury the battery and electronics.

Tightening the Screws

After changing the battery in your Hyundai key, it is essential to tighten the screws securely. This step ensures that the important thing fob stays intact and features correctly. Listed here are detailed directions on easy methods to tighten the screws:

Finding the Screws

There are usually two small screws situated on the again of the important thing fob. Establish these screws rigorously, as they could be hidden by a small rubber cowl or clip.

Utilizing the Appropriate Software

To tighten the screws, you have to a precision screwdriver that matches the scale of the screw heads. Utilizing the mistaken screwdriver can injury the screws or the important thing fob itself.

Making use of Stress Evenly

After you have the proper screwdriver, rigorously insert it into the screw head and apply even stress. Keep away from overtightening, as this could strip the screws or injury the important thing fob.

Tightening the Screws Absolutely

Proceed tightening the screws till they’re comfortable however not too tight. The important thing fob ought to really feel safe whenever you maintain it in your hand, with none rattling or free elements.

Inspecting the Screws

After tightening the screws, examine them to make sure they’re securely mounted. If any screws are free, tighten them additional till they’re safe.

Changing the Cowl

If there was a rubber cowl or clip that hid the screws, rigorously change it to guard the important thing fob and preserve its aesthetics.

Suggestions for Tightening Screws

  • Use a screwdriver with a magnetized tip to forestall the screws from falling out.
  • Apply a small quantity of thread-locking adhesive to the screws earlier than tightening them to boost their stability.
  • When you encounter any problem tightening the screws, seek the advice of a professional locksmith or mechanic.

Desk: Screw Tightening Specs

Screw Kind Tightening Torque
Hyundai Sonata Key Fob 0.8 Nm (7 in-lbs)
Hyundai Elantra Key Fob 0.6 Nm (5 in-lbs)
Hyundai Tucson Key Fob 1.0 Nm (9 in-lbs)

Observe: The tightening torque values offered within the desk are approximate and will range barely relying on the important thing fob mannequin and yr. Seek advice from your Hyundai proprietor’s handbook for particular suggestions.

Testing the Key Battery

To find out in case your Hyundai key battery wants substitute, you may carry out a easy take a look at. Listed here are the detailed steps:

  1. Take away the bodily key: Most Hyundai keys have a flip-out or detachable bodily key blade. Press the discharge button or lever to detach the important thing blade from the transmitter.
  2. Find the battery: Inside the important thing transmitter, you will see a small, spherical or flat battery. The battery kind might range relying in your Hyundai mannequin, however it’s usually a CR2025 or CR2032 coin cell battery.
  3. Examine for injury: Look at the battery for any bodily injury, similar to rust, corrosion, or leakage. If the battery seems broken, it must be changed instantly.
  4. Use a multimeter: You need to use a multimeter to precisely measure the battery’s voltage. Set the multimeter to the “DC Voltage” setting and join the probes to the optimistic (+) and adverse (-) terminals of the battery. A wholesome battery ought to have a voltage studying of round 3 volts. A battery with a voltage beneath 2.7 volts is taken into account discharged and desires substitute.
  5. Take a look at the important thing features: When you should not have entry to a multimeter, you too can take a look at the battery by making an attempt to make use of the important thing’s features. If the important thing intermittently operates the door locks, trunk, or ignition, it’s probably that the battery is weak and must be changed.

Further Battery Particulars

Listed here are some further particulars in regards to the Hyundai key battery:

Battery Kind Typical Voltage
CR2025 3 volts
CR2032 3 volts

Cleansing the Key Fob

Over time, filth and particles can accumulate on the important thing fob, affecting its performance. Common cleansing is essential to keep up its optimum efficiency.

1. Collect Supplies

* Delicate fabric or microfiber towel
* Isopropyl alcohol (70% or greater)
* Cotton swabs or Q-tips
* Toothpick or SIM card removing instrument

2. Wipe Exterior

* Gently wipe the outside of the important thing fob with a tender fabric or microfiber towel to take away free filth and dirt. Don’t submerge the fob in water.

3. Use Isopropyl Alcohol

* Dampen a cotton swab or Q-tip with isopropyl alcohol and gently clear the buttons, crevices, and edges of the fob. Isopropyl alcohol helps dissolve and take away cussed filth and dirt.

4. Clear Button Contacts

* Use a toothpick or SIM card removing instrument to softly scrape away any corrosion or particles from the metallic contacts on the again of the fob the place it makes contact with the car.

5. Clear Fob Physique

* If vital, use a tender fabric or cotton swab dampened with isopropyl alcohol to scrub the within and outdoors of the fob physique. Keep away from utilizing extreme alcohol, as it might injury the fob’s parts.

6. Dry Completely

* Let the important thing fob air dry utterly earlier than utilizing it once more. Any remaining moisture can injury the fob’s electronics.

Here’s a desk summarizing the cleansing steps:

Step Motion
1 Collect supplies
2 Wipe exterior
3 Use isopropyl alcohol
4 Clear button contacts
5 Clear fob physique
6 Dry completely

Steps on The best way to Change Hyundai Key Battery

Supplies Wanted

  • New key battery (verify your proprietor’s handbook for the proper kind)
  • Small flathead screwdriver or keyhole instrument
  • Optionally available: Spare key (for programming)

Directions

1. Find the Key Launch Button

There’s a small button situated on the again or aspect of the important thing fob. Press and maintain this button to launch the mechanical key.

2. Take away the Mechanical Key

Pull out the mechanical key from the important thing fob.

3. Open the Key Fob

Use the small flathead screwdriver or keyhole instrument to pry open the important thing fob. You’ll hear a clicking sound because the case separates.

4. Find the Battery

The battery is normally a small, coin-shaped disc nestled in the important thing fob.

5. Take away the Outdated Battery

Fastidiously take away the outdated battery utilizing the flathead screwdriver or your fingernail.

6. Shut the Key Fob

Align the 2 halves of the important thing fob and press firmly to snap it again collectively.

7. Insert the Mechanical Key

Slide the mechanical key again into the important thing fob.

Programming the Key (if vital)

Some Hyundai keys might require programming after a battery change. Here is easy methods to do it:

Handbook Programming

  1. Get a spare key that’s already programmed.
  2. Insert the spare key into the ignition and switch it to the “On” place, however don’t begin the automotive.
  3. Take away the spare key and insert the newly changed battery key inside 30 seconds.
  4. Flip the ignition to the “On” place once more and again to “Off” two occasions. Go away it on “On” the third time.
  5. Lock and unlock the doorways with the newly programmed key inside 10 seconds.
  6. Take away the important thing and take a look at if it really works.

Vendor or Locksmith Programming

If handbook programming doesn’t work, you may go to a Hyundai dealership or locksmith to have the important thing programmed professionally.

8. Take a look at the Key

Lock and unlock your automotive utilizing the distant buttons on the important thing fob to make sure it really works correctly.

9. Get rid of the Outdated Battery

Get rid of the outdated battery in response to your native rules. It could comprise dangerous chemical compounds.

10. Further Suggestions

  • Use a contemporary battery for optimum efficiency.
  • Exchange the battery promptly whenever you discover a lower in sign vary or button responsiveness.
  • Maintain your key fob away from excessive warmth or chilly, as it might injury the battery.

11. Security Precautions

  • Don’t insert any sharp objects into the important thing fob, as this could injury the circuitry.
  • Keep away from touching the battery terminals together with your naked arms, because the oil out of your pores and skin may cause corrosion.
  • When you expertise any problem altering the battery or programming the important thing, seek the advice of knowledgeable.

Battery Varieties for Hyundai Keys

Mannequin Battery Kind
Elantra (2006-2016) CR2025
Sonata (2006-2019) CR2032
Tucson (2005-2015) CR2025
Santa Fe (2007-2019) CR2032
Genesis (2009-2016) CR2032

Supplies You will Want:

  • New CR2032 battery
  • Small screwdriver or coin

Directions:

  1. Find the important thing launch button. It is normally on the again of the important thing fob.
  2. Press the discharge button and pull the important thing blade out.
  3. Find the battery compartment. It is normally on the again of the important thing fob, reverse the important thing blade.
  4. Use a small screwdriver or coin to pry open the battery compartment.
  5. Take away the outdated battery and insert the brand new one. Be certain the optimistic (+) aspect of the battery is dealing with up.
  6. Shut the battery compartment.
  7. Insert the important thing blade again into the important thing fob.
  8. Press the important thing launch button to lock the important thing blade in place.

Troubleshooting Frequent Key Battery Points:

When you’re having bother together with your Hyundai key battery, listed below are some widespread points and easy methods to repair them:

Battery Not Making Contact

If the battery isn’t making contact with the terminals, the important thing fob might not work correctly. To repair this, attempt the next:

  • Clear the battery terminals with a cotton swab and rubbing alcohol.
  • Be certain the battery is inserted accurately, with the optimistic (+) aspect dealing with up.

Weak or Lifeless Battery

If the battery is weak or lifeless, the important thing fob might not work correctly. To repair this, change the battery with a brand new one.

Broken Key Fob

If the important thing fob is broken, it might not work correctly. To repair this, it’s possible you’ll want to interchange the important thing fob.

Interference from Different Gadgets

If there are different units close by that emit robust electromagnetic fields, similar to cell telephones or laptops, they could intrude with the important thing fob’s sign. To repair this, attempt shifting the important thing fob away from these units.

Defective Key Fob Transmitter

If the important thing fob’s transmitter is defective, it might not have the ability to ship a sign to the automotive. To repair this, it’s possible you’ll want to interchange the important thing fob.

Automobile Battery Not Receiving Sign

If the automotive’s battery isn’t receiving a sign from the important thing fob, it might not have the ability to unlock or begin the automotive. To repair this, attempt the next:

  • Examine the automotive’s battery and ensure it’s correctly related.
  • Exchange the important thing fob’s battery.
  • Attempt resetting the important thing fob.

Key Fob Not Synced with Automobile

If the important thing fob isn’t synced with the automotive, it might not have the ability to unlock or begin the automotive. To repair this, it’s possible you’ll must resync the important thing fob.

Different Points

If you’re nonetheless having bother together with your Hyundai key battery, there could also be different points that should be addressed. On this case, it’s best to seek the advice of with a professional mechanic.

Battery Kind Alternative Interval Common Value
CR2032 2-4 years $5-$10
CR2025 1-2 years $3-$5
CR1620 1-2 years $2-$4

Guarantee and Service Implications

Changing the important thing battery in your Hyundai car is an easy process that may be accomplished in a couple of minutes. Nonetheless, you will need to concentrate on the potential guarantee and repair implications earlier than you try to interchange the battery your self.

Sometimes, changing the important thing battery in your Hyundai car won’t void the guarantee. Nonetheless, should you injury the important thing or the battery throughout the substitute course of, the guarantee could also be voided. Moreover, when you have any questions or issues about changing the important thing battery, it’s all the time greatest to seek the advice of with a professional Hyundai technician.

Listed here are some further guarantee and repair implications to remember:

  • When you have a Hyundai car that’s nonetheless underneath guarantee, you will need to have the important thing battery changed by a professional Hyundai technician. This can make sure that the guarantee stays legitimate and that your car is correctly maintained.
  • When you have a Hyundai car that’s not underneath guarantee, you may change the important thing battery your self. Nonetheless, you will need to comply with the directions rigorously and to keep away from damaging the important thing or the battery.
  • When you have any questions or issues about changing the important thing battery in your Hyundai car, please don’t hesitate to contact a professional Hyundai technician for help.
12 months Mannequin Key Battery Alternative Value
2015 Sonata CR2032 $10
2016 Elantra CR2025 $8
2017 Tucson CR2016 $12
2018 Santa Fe CR2032 $10
2019 Kona CR2025 $8

Battery Upkeep for Optimum Efficiency

Preserving the longevity and effectiveness of your Hyundai key battery necessitates correct upkeep. Adhering to those easy tips will guarantee optimum efficiency:

1. Exchange Battery Recurrently

Recurrently changing the battery, usually each 2-3 years or as beneficial in your car’s proprietor’s handbook, is essential to forestall surprising battery failure.

2. Clear Battery Contacts

Periodically examine and clear the battery contacts utilizing a cotton swab dipped in rubbing alcohol to take away any corrosion or particles that will impede correct connection.

3. Keep away from Excessive Temperatures

Excessive temperatures, each cold and warm, can adversely have an effect on battery life. Keep away from exposing the important thing to extended publicity to direct daylight or leaving it in excessive warmth or chilly environments.

4. Take a look at Battery Recurrently

Make the most of a multimeter or a easy battery tester to periodically verify the battery voltage. A voltage studying beneath the required stage signifies the necessity for battery substitute.

5. Retailer Key Correctly

When not in use, retailer the important thing in a cool, dry place to forestall the battery from draining prematurely.

6. Use Key Fob Recurrently

Common utilization of the important thing fob helps preserve battery life by stopping the battery from changing into utterly discharged.

7. Keep away from Dropping Key

Dropping the important thing may cause injury to the interior parts, together with the battery, resulting in untimely failure.

8. Keep away from Submerging Key

Submerging the important thing in water may cause irreparable injury to the battery and different digital parts.

9. Maintain Key Away from Magnets

Robust magnets can intrude with the important thing’s digital parts and doubtlessly injury the battery.

10. Do not Go away Battery Unfastened

Making certain the battery is securely mounted inside the important thing housing prevents it from rattling round, which might trigger injury.

How To Change Hyundai Key Battery

Hyundai key fobs use a small battery to energy the electronics that permit you to lock and unlock your automotive, in addition to open the trunk. Over time, this battery will should be changed. Listed here are the steps on easy methods to change the battery in a Hyundai key fob:

1. Find the small screw on the again of the important thing fob. Use a small Phillips head screwdriver to take away the screw.

2. Fastidiously pry open the 2 halves of the important thing fob. Watch out to not injury the buttons or electronics.

3. Find the small battery. It will likely be held in place by a metallic clip. Use a small flathead screwdriver to pry the clip open and take away the battery.

4. Insert the brand new battery into the important thing fob. Ensure that the optimistic (+) terminal of the battery is dealing with up.

5. Exchange the metallic clip and snap the 2 halves of the important thing fob again collectively.

6. Tighten the screw on the again of the important thing fob.

Your Hyundai key fob ought to now be working once more.

Individuals Additionally Ask About

How typically ought to I alter the battery in my Hyundai key fob?

The battery in a Hyundai key fob usually lasts for 2-3 years. Nonetheless, this will range relying on how typically you employ your key fob.

What kind of battery does my Hyundai key fob use?

Hyundai key fobs usually use a CR2032 battery.

Can I alter the battery in my Hyundai key fob myself?

Sure, you may change the battery in your Hyundai key fob your self. The method is straightforward and solely takes a couple of minutes.