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How to Fix a Problem With Your Hyundai i20 Key Fob

Hyundai I20 vehicle owners can lock and unlock their vehicles remotely. They can also start their vehicle in advance and track key-fob functions through an app on their smartphone.

But, sometimes, the key fob might stop functioning for a reason. It could be due to a dead battery, water damage, or even signal interference.

Battery

Hyundai has created the smart key fob for their vehicles that enables you to perform a range of remote functions like locking and unlocking doors, launching your vehicle and even activating a panic button. It's an excellent feature for drivers and helps them save time and effort, but it can be challenging when the system doesn't function properly. If you're having difficulty getting your Hyundai i20 key fob to function properly there are a few things you can do to resolve the issue.

The first step is to test the battery. Most smart key fobs make use of a coin cell battery that is replaced in minutes. This is the fastest and most affordable way to solve your issue. It is possible to purchase replacement batteries in many stores as well as online. After you have put the new battery in place open the key fob to ensure that the battery is in the right position and is in contact with all of the connections.

Take a photo or note the position of the battery that was removed from the circuit before you remove it. This will allow you to install the new battery in the same manner. Most Hyundai smart key fobs utilize a CR2032 battery which is found in many shops and on the internet. Once you have the battery in place and closed, you can close the key fob, and then test it to determine if it's functioning again.

Contacts

If your Hyundai key fob has stopped working completely out of the blue and you've not dropped it, you may have a problem with an internal chip. The receiver module inside your vehicle utilizes radio frequency signals to communicate with the remote control, therefore if this signals are being interfered with by nearby transmitters or objects, it can cause the key fob to stop functioning correctly.


You should consider the Hyundai Digital Key system if you're looking for a way to unlock, lock and start your vehicle while you commute to Reno. This innovative keyless entry system works via an app for smartphones and lets you share Digital Key access with up three other people. This can be useful when offering a friend a ride or when you leave your car with valet services.

A dead battery is the most frequent cause of an Hyundai i20's key fob not functioning. It's time to replace the battery if yours shows signs of aging like a slow operation or no response at any time. Although the process of replacing the Hyundai keyfob battery shouldn't be difficult, you should be aware of a few points prior to starting. First, take a note of the way that the old battery is laid on the circuit board. You can also take a photograph. This will allow you to place the new battery in the same spot.

hyundai i40 key fob replacement The Keylab Damage

The rubber seals on the fob's key seal the chip's electronic components from water. If it is able to withstand a short splash from a washing machine, or an a short immersion in a light rain it's unlikely to get damaged. If you drop it in a pool or ocean and the water sank into the seals, damaging the circuit board. This is an expensive repair.

The first step is to dry the key fob completely. This can be done in various ways. You can place it in a bag along with silica bags to absorb the moisture. Alternately, you can use rice that has not been cooked, but it is important not to touch the key fob while it's still damp as it could cause contamination to the internal components.

Using isopropyl alcohol or an electronic cleaner may also help in cleaning the contacts on the circuit board. If the chip has gone bad and you suspect it, you'll need to replace the key fob.

It's easy to replace the battery in your Hyundai key fob. The procedure is generally simple. You can refer to an YouTube tutorial or your owner's manual to guide you through the procedure. It's a great idea keep a spare key fob so you can drive around in your vehicle while waiting for the repaired key.

Troubleshooting

It isn't always easy to identify an issue if your check engine light comes on and you have a fault code. This is why the diagnostic scanner is commonly known as an OBD 2 (or OBD 2 in the United Kingdom). These are available in Bluetooth versions which connect to your phone or standard models that have an attached reader to the socket.

The throttle position sensor (TPS) is located within the i20, may become damaged. This sensor is responsible to measure the opening angle of throttle valve. This information is sent to the control unit, which is used to calculate the amount of fuel needed. A malfunctioning throttle sensor could cause abrupt acceleration, erratic RPM changes and a reduction in engine performance.

Another issue that is common in the i20s is the malfunctioning transmission. The transmission is a complicated part that has a lot of gears which mesh together to transfer the power from the engine. The friction between the gears leads to wear over time which can cause the transmission to fail. The sound of grinding or clunking and an acceleration that is jerky can indicate the gearbox being damaged.

The spark plugs on the i20 are a second common problem area. Spark plugs that are defective could cause engine damage due to not providing enough sparks to each cylinder. If left unchecked the damaged spark plug can result in severe and costly engine damage.