How to Fix a Problem With Your Hyundai i20 Key Fob

Hyundai i20 owners can lock and unlock their cars remotely. They can also start the vehicle in advance and monitor key-fob functionality using an app on their smartphone.

Occasionally the key fob might cease to function. This could be due to a dead battery, water damage or signal interference.

Battery

Hyundai has developed a smart key fob that is able to perform various remote functions, like locking and unlocking your doors, launching your car and even activating the panic button. It's an excellent way to cut down on time and energy for drivers, but it can be a hassle if the system isn't working properly. There are a few options you can do to fix your Hyundai i20's key fob isn't working correctly.

The first step is to test the battery. The majority of smart key fobs are powered by a coin-cell battery that can be repaired in a matter of minutes. This is usually the fastest and most cost-effective method to resolve the issue. Replacement batteries are readily available in most stores or online. Once you have a new battery, re-open the key fob to ensure that the battery is in the proper position and that it is in contact with all of the connections.

Be sure to take a picture or make a note of how the old battery was positioned on the circuit board prior to taking it out it. This will allow you to install the new battery in the same way. The majority of Hyundai smart keyfobs are equipped with CR2032 batteries, available in a variety of stores or online. Close your key fob after you have installed the battery and testing it.

Contacts

If your Hyundai key fob suddenly stopped functioning and you didn't drop it, there could be a problem with the internal chip. The receiver module inside the car utilizes radio frequency signals to communicate with the remote. If these signals are obstructed by nearby transmitters, or other objects the key fob could stop working properly.

If you're looking for an efficient way to unlock, lock and start your car during your Reno commute, consider the Hyundai Digital Key system. The advanced keyless system operates through an app on your smartphone. It allows you to share Digital Key access up to three people. This is useful if you are giving a friend a lift or leaving your vehicle with valet service.

A dead battery is the main reason keys for hyundai cars a Hyundai i20's key fob not functioning. If yours is showing signs of dying, like slow operation or not responding at all, it's time to replace the battery. Although replacing and opening the battery in your hyundai key fob Repair key fob battery isn't difficult but there are a few things to know prior to beginning. First, make a note of the way that the old battery is laying on the circuit board or take a photo. This will assist you in placing the new battery in the same position.

Water Damage

The rubber seals on the key fob shield the electronic chip from water. If it can withstand the splash of water from a washing machine or even a brief immersion in light rain it's unlikely to be damaged. If you drop it into a pool or ocean the water could get into the seals, causing damage to the circuit board. This can be a costly repair.

The first step is to dry the key fob completely. This can be done in many ways. You can place it in a plastic container with silica gel bags that will draw the moisture out of it. You could also use uncooked rice Be careful not to be near it while it's still wet. It could be contaminated by its internal components.

Using isopropyl alcohol or an electronic cleaner can also help in cleaning the contacts on the circuit board. However, if the chip is fried then it's probably best to accept that you'll need to replace the key fob.

It is easy to replace the battery in your Hyundai key fob. The process is usually not messy. You can follow an YouTube tutorial or the owner's manual to guide you through the process. It's a good idea to keep an extra key fob on hand so you can drive your car while you wait for the repaired key.

Fault Diagnosis

If your check engine light is on and the fault code is present, it may be difficult to identify the problem without the use of a diagnostic scanner often referred to as an OBD 2. These are available in Bluetooth versions that connect to your phone or standard models that have a reader attached to the socket.

The throttle position sensor (TPS), which is located in the i20, could become damaged. This sensor is responsible to measure the opening angle of throttle valve. This information is passed to the control unit and contributes to the calculation of the amount of fuel needed. A malfunctioning throttle position sensor can result in lower engine performance, jerky acceleration and RPM variations when driving.

Transmission problems are a common issue for i20s. The transmission is a complicated component that has many gears that connect to transfer power from the engine to wheels. The friction between the gears cause wear and tear that can cause the transmission to fail. Signs of a defective transmission include grinding or clunking noises and rapid acceleration that is jerky.

Spark plugs are yet another aspect to be concerned about for the i20. Spark plugs that are defective could cause engine damage due to not delivering enough sparks to every cylinder. If not checked the damaged spark plug could cause serious and expensive engine damage.