The battery in your Hyundai key fob is simple to change. A replacement CR 2032 3V battery is all that is required. They typically cost between $3 and $5 for a pack of 5. Wearing latex gloves is advised because you will be contacting a motherboard during this process, which could result in unintended harm.
- Remove the emergency key from the fob’s base.
- Between the release button and the key slot, insert the key.
- Turn the key until the fob pops open as if you were unlocking a door.
- Open the fob while facing the buttons downward (otherwise they will fall out).
- Remove the barrier and motherboard, then set aside the button-side of the fob.
- Remove the dead battery from its mount using the key.
- Place the + side of the new battery in its bracket.
- Replace the fob’s button-half, motherboard, and barrier.
- Set the release button peg in the appropriate hole.
- Reassemble the fob with a snap.
You’re done now! Press any button to put your Hyundai Smart Key to the test. If all was done correctly, a tiny red light should flash over the unlock button.
In This Article...
What kind of battery does a key fob for a 2018 Hyundai Elantra use?
A CR2032 battery powers the majority of Hyundai key fobs. Once you have a new Hyundai key fob replacement battery in your possession, insert it into your key fob exactly where the old one was. Check to see if the battery is in contact with each connection.
What should I do after changing the battery in my key fob?
The majority of people use their key fob to unlock their car doors and trunk. But what occurs if the battery runs out? You might believe that getting a new key fob requires visiting a dealership or a locksmith, but did you know that you can simply reset it yourself?
This is how:
Find the little button on your key fob first. This is typically found on the fob’s backside.
2. For around 15 seconds, press and hold the button.
3. Release the button after 15 seconds, and your key fob should be reset!
The owner’s manual for your car should always be consulted if you have any issues or inquiries.
Simply press and hold the reset button for a few seconds if your key fob has one. Remove the battery cover and press the tiny reset button on the circuit board if your key fob lacks a reset button.
I can’t get my Hyundai key fob to open.
By pressing and holding the metal tab or button, start by withdrawing the metal key. Next, insert the metal key into the little opening and turn it in either way to release the back cover of your key fob. The case ought to instantly open.
Where is the 2018 Hyundai Elantra’s smart key holder?
There is a holder spot on every Hyundai car that features Smart Key technology. It typically resides in the glove box or center console. Your vehicle will start and your Smart Key will work if you place your key in that spot.
Why won’t my key fob operate now that the battery has been changed?
A dead battery is the most frequent cause of a key fob not functioning. Having said that, your keyfob might be having more serious issues. You might require a key fob replacement or perhaps auto door lock repair if your key fob stops operating after a battery change.
How is a key programmed after a battery change?
Turn the key back to the “Off” position while holding down the lock button on the fob. At least three times, go through this process, finishing with the key in the “On” position.
This notifies the electronic control modules in your automobile that the signal is coming from your key in the ignition, and it then saves the information.
After changing the battery, does the key fob need to be reprogrammed?
After changing the battery, you typically do not need to reconfigure the key fob. However, you might need to reprogramme it by re-pairing it with your vehicle if you’ve replaced not only the batteries but also some of the internal cabling and electronics.
What does the Hyundai key fob’s hold button do?
What does auto hold accomplish? It prevents your automobile from rolling away accidently when it is moving or stopped, thanks to the ABS/ESC hydraulic unit.
Can I customize my Hyundai key fob myself?
Remember that in order for the key fob programming instructions to be effective, you must already have a key fob that has been pre-programmed to a previous Hyundai that you have owned. To have a skilled technician program the key fob to your car if you are buying a new Hyundai, you must go to a Hyundai service center.
Key fobs: Do they have batteries?
The past ten years have seen a significant development in key fobs. Push start systems of today are an evolution of what was once only a convenient technique to remotely lock and unlock doors. Despite the fact that key fob technology is continually evolving, their power source has not changed. Batteries power key fobs and other auto remote controls. That implies that the battery inside them needs to be changed when it runs out of juice. Batteries Plus can assist if your key fob isn’t working as well as it once did. For answers to all of your questions about automobile remotes, including what kind of batteries they need, how long they last, and where to buy a replacement battery, continue reading.
Will my Hyundai still start without the key fob?
I have a lifted 2001 Miata for pre-running and a 2004 Mazdaspeed Miata for pavement fun because I enjoy 2-seater, RWD convertibles. I compete in desert races like the Mint 400 and the Baja 1000 in air-cooled Volkswagens. I’m the only driver competing in an EV, the Rivian R1T, and I’ve twice won the seven-day navigational challenge known as the Rebelle Rally.
The technology, luxury, and design of the 2020 Hyundai Sonata have all undergone significant enhancements, and there is also a cool new piece of technology. With Hyundai’s new Digital Key, Sonata owners may start their cars, unlock their vehicles, and sound the horn through a smartphone app. Of course, this is not brand-new technology, but Hyundai has a trick up its sleeve.
By placing their phone on the Sonata’s door handle, drivers may unlock the vehicle via NFC (near-field communication). While some automobiles can be started remotely, others require a standard key fob to be inside the vehicle in order to properly engage the vehicle. Even while the Sonata will still be marketed with a smart fob, all you really need to start driving is your phone. The Sonata will give you complete access to the vehicle and even alter the seat, mirrors, radio, and driver assistance parameters to your preset profile if you simply insert it into the wireless charger/NFC reader.
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Additionally, you may give friends and family access to the automobile for however long you like by sharing your key. Owners can theoretically be anywhere in the world and grant access to their Sonata to up to four others because sharing happens directly via the app. Imagine lending your Sonata to a friend without any additional fuss while you’re away on a business vacation.
Also included is an NFC card that functions similarly to the one used to open a hotel room. To continue using Digital Key even if someone else has to drive your car while you’re out and about, you may either keep this as a backup or give it to someone like a valet driver or parking attendant.
The catch is that as of right now, since only Android phones support NFC, this technology only functions with them. Except for the entry model, all versions of the 2020 Hyundai Sonata—which should hit showrooms in October—come standard with Digital Key.