Why Is My Hyundai Key Not Working?

a straightforward issue like a dead battery in your smart key

Why does my Hyundai key fob not function after changing the battery?

Every automobile owner’s main duty is to make sure the vehicle is always capable of performing its tasks. However, issues do develop.

We could run into problems with either mechanical or electronic components because the majority of modern vehicles use electronic control units.

Nowadays, electronic car keys or key fobs are required to operate the majority of vehicles. When you wish to operate your car, key fobs are nearly always required.

You require the key fob, for instance, to unlock the vehicle, start the engine, open and close the trunk, operate the alarm system, and even operate the electric windows.

Key fobs, however, depend on batteries to operate, and eventually the power runs out. You must therefore replace it. Unfortunately, after changing the key fob battery, it can stop working.

So what might be the issue? And where might the root of that issue lie? This is a problem because a lot of car owners rely on the key fob for most functionality.

After changing the battery, there are a number of reasons why your car’s key fob could not function, including;

  • You handled the key fob circuit improperly.
  • The buttons on the key fob are corroded.
  • The key fob is damaged, among other things.

Fortunately, these issues may be fixed to get your key fob back on track. Learn more about these and other reasons why a key fob won’t operate after a battery change by reading on.

Why won’t my car start when I turn the key?

automobile remote battery problems The majority of remote car keys use lithium ion coin batteries, which have a high shelf life but are not indestructible. If your remote car key stops working, the first thing you should check is the battery, as this is typically the main culprit.

Why won’t my car door unlock with my key?

Transponder keys established the idea of communication, which has since been expanded upon by the majority of current automobiles. The keyless entry remote is the result of this. Each button on the keyless entry remote causes your car to perform a certain task. These entry remotes don’t require a key, therefore the key itself communicates with your car to operate. Similar to the transponder key described above, this activity is performed by most of these vehicles’ push buttons as opposed to a key and ignition cylinder.

The signaling is problematic when the automobile key fob is not operating, just like with a transponder car key. Low or dead batteries in the car key fob are the most common culprits. However, if that doesn’t resolve your problem, you’ll need to look into other technological problems. In addition to technical problems, your door lock assembly may be malfunctioning if your key fob won’t open your automobile doors.

How can my Hyundai key fob be reset?

  • As soon as you get inside your Hyundai, check that all the doors are closed.
  • Put your Hyundai’s ignition in the “ACC” (accessory) position using your key.
  • Keep pressing the “open” or “unlock” button on the key fob until the light on your car starts to flash.
  • Congratulations

Why won’t a new key work to start my car?

Your car won’t start if you just acquired a new key that wasn’t properly programmed. The information on your key may not be readable by your vehicle if the chip within your key becomes damaged in any manner, which could prevent it from starting.

Why would a key quit functioning all of a sudden?

Over time, dust, dirt, hair, and other particles can enter the keyboard and impede a key’s motion or mess with its circuitry. Clean the area under and around the key that isn’t working before attempting to remove it.

You might also try using an air compressor or a can of compressed air to clear any debris out of the crevices between the keys.

If cleaning the area around and beneath the key does not restore it to full functionality, the keyboard’s circuit board is probably faulty or damaged. One or more keys may no longer work correctly or at all as a result of a defective circuit board. The keyboard must be changed if the circuit board is the cause of the issue.

Why doesn’t my automobile recognize my key fob?

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. Check your owner’s manual for information on how to start your automobile when the key fob malfunctions.

Why does my key fob no longer function?

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.

Hyundai vehicles can be operated without a key fob.

Once the engine is going, the automobile will still work without the key fob. Additionally, switching from park to drive is trouble-free even when the key is not available.

In a Hyundai key fob, what kind of battery is used?

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.

Can you do it yourself to program a Hyundai key fob?

Only a specialized programming machine may be used to program all Hyundai transponder keys and remote controls. Therefore, the keys can only be programmed for you by a dealer or locksmith.

There is, however, a way to reduce the cost and make the process more accessible. You can find instructions on how to do that in the sections below. It shouldn’t need much of your time and can help you save a ton of cash.

What happens if only one key is functional?

When one key isn’t working, concentrating on that key is the best course of action. Remove the keycap, then scan the area for trash. Use canned air to clear it out if you see anything. Try cleaning the key with canned air or contact cleaner if that doesn’t work, and if all else fails, replace the switch.

Why won’t my key fob operate now that the battery has been changed?

The most typical fix for a broken key fob is a battery replacement. However, replacing the batteries may not always be the best course of action. Therefore, your key fob might not operate even after a battery change for various reasons.

Handling the key fob circuit carefully is the first step in fixing the issue. Do not use your bare hands to contact the key fob circuit if you are not familiar with handling electronics. Call a professional right away to quickly diagnose and resolve the issue.

The following are additional causes for the key FOB’s malfunction:

Over time, a car remote’s button will inevitably wear out. When the button is depressed, the contacts notify the circuit board to carry out commands. The contacts may become separated from the buttons as they deteriorate. Pressing the buttons repeatedly is one of the greatest techniques to identify worn-out car buttons on car remotes.

Determine which of the following circumstances applies:

  • Only certain button presses, or all button presses, function.
  • One button operates while the other does not.

There is a problem with the automobile remote if the plastic that covers the key fob has also cracked. Open the key fob using basic tools, then inspect it for damaged contacts or crooked buttons. In the event that doesn’t work, get a new automobile key fob.

Your car remote might not function after changing the battery for another cause, which is the lock. Look for these indications to determine whether the lock or auto door has become faulty.

  • Manual or key operation of the lock does not cause it to unlock or lock.
  • Some door locks can be opened remotely, but not all.
  • Without the doors opening, a signal has been transmitted, as indicated by the indicator light flashing.
  • Door lock operates partially or not at all.

The automobile key may become damaged as a result of things like water, scratches, etc. The key fob may be damaged if it stops functioning right away after being trodden on, submerged in water, or opened. Other indicators to look out for include:

  • Whether a backup key functions
  • The buttons are stationary.
  • The Key is clearly damaged.

A damaged key can be replaced with a new car key. The key fob can be reprogrammed with assistance from the Colorado Springs Locksmith specialists.

There is a good likelihood that the battery change reset a car remote. When certain buttons are pressed, the key fob can also be reset. Therefore, the failure of many key fobs is a good indication that the automobile key remote has been reset. There are two indicators to watch out for:

  • No spare remotes operate.
  • car remote completely quits functioning

Will a dead key fob prevent a car from starting?

If your key fob isn’t detected inside the car, the keyless entry system won’t start the engine. The system probably won’t be able to tell when the key fob is inside the car if it has a dead battery, which will prevent the engine from starting. By pressing down while placing the fob on the start engine button, you can get past this problem. Even though this should enable your engine to start, it is still beneficial to change the fob batteries whenever you have the opportunity.

Does a key fob’s battery damage a car?

Oh no! I have an electric vehicle key, and I believe my car’s battery is dead. Nothing is working despite my repeated clicks. If my car battery is dead, would my electric key still function?

In less than two minutes, find out if your auto insurance is being overcharged.

I’m sorry you’re locked out of your automobile; that may be a terrifying situation. No, if the battery in your automobile is dead, the electric key clicker will not function. But most fob keys provide a back-up option.

Every car, whether it is electric or gas-powered, has a 12-volt battery that powers the headlights, the locking system, and aids in starting the vehicle.

The clicker won’t function if your car’s battery is dead because the electric key needs power to unlock it. When you press the release button on most electric keys, the physical key either slips out like a sword or flips up like a switchblade.

Here are some general pointers, but for detailed instructions, make sure to refer to your vehicle’s manual:

if the keyhole in your car is visible. The door should open once you insert the key (often found in the driver’s door) and twist it like any other key.

without having a visible keyhole. To remove any plastic covering off the door handle, you will need something with a thin edge, such a screwdriver. After that, insert the key as usual. Be gentle so as not to damage the thinner plastic or scratch the paint. On how to access it, Jim the Car Guy has a fantastic tutorial video.

If your 12-volt battery dies while you’re inside, you’ll probably need to jump start your automobile in order to get it going.

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