He seemed to be extremely familiar with the Sonata, and he told me the smart key had a rechargeable battery.
Simply drive after inserting the key into the center console’s slot to start the battery.
In This Article...
Changing the Battery in Your Hyundai Key Fob
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.
Registration and pairing of the NFC Key Card
It is recommended that you always keep your NFC (Near Field Communication) Key Card on hand as a backup key in case your smartphone experiences a power outage or other problem. The card resembles a hotel key card and may therefore be conveniently stored in a wallet or billfold. The NFC Key Card will also need to be associated and registered with the automobile in order to function as a backup digital key. If the card hasn’t already been associated with the car, please follow these steps:
- Start your car.
- Make sure the Hyundai Digital Key app is installed on your primary smartphone and that it is in the car.
- Pick Pair NFC Key Card through BLE from the side menu in the app.
- the wireless card changer with your card in it.
- There will be automated pairing.
Follow these steps to finish the registration procedure for models having a navigation screen:
Why won’t my Hyundai Sonata’s key turn?
A binding steering column or lock, a malfunctioning ignition switch, or a fault with the ignition key are the three most frequent causes of a Hyundai Sonata key that won’t turn. To chat with a specialist about your problem, look through our network of RepairPal Certified stores nearby.
Why won’t my Hyundai key turn?
If it isn’t, reopen the case and check to make sure the connections are intact and touching the battery in the proper location. Try reprogramming your Hyundai key fob after that. Hyundai key fob replacement may be necessary if the key fob is still inoperable.
How can I reset my car key now that the battery has been changed?
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.
How can I tell if the battery in my car key is low?
Many key fobs have a tiny LED light that turns on when one of the buttons on the fob is pressed. If the LED light is completely dark, either the fob’s battery is dead or the fob is experiencing some other issue. You can use a voltmeter to check the voltage of the fob battery if you already have it out.
Why doesn’t my automobile recognize my key?
Key fob battery failure The most frequent cause of a keyless entry system failing to send signals is a faulty battery in the key fob. Use the extra key fob to unlock the car and turn on the ignition if one is available. Use the key that is included in the spare fob if it is not available to unlock the door.
Can you recharge a key fob?
My key fob isn’t reliably unlocking my car and looks to be running low on power. I wish I knew how to give it more juice, though! How should a Nissan car key be recharged?
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A small luxury that may improve the entire car-owning experience is a key fob that works smoothly. Nissan key fobs, however, cannot be recharged. Instead, you must swap out the battery.
Nissan key fobs typically use CR2025 button cell batteries, which are available for roughly $5 from retailers or dealers. To make sure you’re obtaining the correct model, check your owner’s handbook before you purchase a new battery.
The instructions for replacing the battery are as follows after you have the appropriate replacement:
- Take the extra metal key out of your fob. On the back of your key is a little slider that can be used to release this.
- Put a flathead screwdriver where the key was and twist to gently pop open the plastic shell.
- Pull the dead battery from its container using the screwdriver.
- Place a brand-new battery in it, negative side up.
- Change the housing and backup key.
You’ve now successfully changed the key fob’s battery! If the issue persists, get in touch with your local Nissan dealer and ask them to reset your key.
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What occurs if the battery in the car key dies?
My car’s key fob seems to be coming in and going out, though. I know I merely need to replace the battery, but I don’t have much free time. What if the key fob entirely fails while I’m operating the vehicle?
This issue has been foreseen by automakers ever since the key fob was created. Nothing will happen if your key fob dies while you’re driving. Simply because the key fob is a locking and starting device only, the automobile will continue to run. The key fob has no influence over the ignition or engine once the automobile is moving.
If time is of the essence, you should be aware that changing the battery in your key fob just requires two minutes, albeit you will need to visit a general store or pharmacy to obtain the battery.
Why not change the battery in your car insurance at the same time as you replace the one in your key fob?
You can access a new quotation with just a few taps on your phone screen by downloading the Jerry app and answering a few questions.
Jerry assists you in finding and comparing rates from more than 50 leading suppliers in minutes as a licensed broker. Jerry can assist you with purchasing new insurance and even canceling your existing policy when you find a lower rate.
Will a dead key fob deplete the battery in my car?
We frequently receive inquiries like these at the shop. Yes, it is the correct response. Your key fob can eventually deplete your battery if you keep it in your car when it is not in use. Even when not in use, the key fob continuously transmits a signal to the vehicle, which consumes a tiny amount of electricity. So, if you keep your key fob in your car for a long time, the battery will ultimately die. If you find yourself in this predicament, you might try using a jumper wire or a portable battery pack to jump start your automobile.
Additionally, it may not be a good idea to leave your key fob in your car overnight or even just hanging nearby. The key fob may speak with your automobile if it is too close, which could drain the battery.
What is the price of a key fob battery?
These batteries typically cost $10 or less, however some fobs need two. Since it just takes a few seconds, battery specialists and dealers frequently replace the batteries for free.
What occurs when the battery in your key fob runs low?
The transmitter’s range decreases as the fob battery gets weaker. This implies that for the key fob to operate, you must be close to the vehicle. When a smart key fob is in your pocket or handbag for automobiles with push-button starts, the car might not always detect it if the battery is low.
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.
Will a low key fob battery cause the check engine light to appear?
A bad battery will inevitably result in low voltage to the vehicle’s computer, which could turn on the check engine light. Before performing any additional diagnostic testing, the mechanic will test your car’s battery when you bring it in for service.