How to Fix a Problem With Your Hyundai i20 Key Fob

Hyundai I20 vehicle owners can lock and unlock their cars remotely. They can also start their vehicle in advance and track the key fob's functions using an app on their smartphone.

However, occasionally the key fob will stop functioning due to a reason. It could be due to an unresponsive battery water damage, or signal interference.

Battery

Hyundai has developed the smart key fob for their vehicles. It allows you to perform a range of remote functions including locking and unlocking doors, starting your vehicle and even activating panic buttons. It's an excellent feature for drivers, helping them save time and effort, but it can be challenging when the system doesn't function properly. There are several things you can do to fix your Hyundai i20's key fob isn't working correctly.

The first step is to check the battery. The majority of smart key fobs have an internal battery that is replaced in minutes. This is the most efficient and cheapest solution to fix the issue. Replacement batteries are readily available in many stores or online. Once you have a new battery in place then re-open the key fob to ensure that the battery is sitting in the correct position and is in contact with all of the connections.

Be sure to snap a photo or take a note of the way in which the old battery was placed on the circuit board prior to removing it. This will assist you in installing the new battery in the same way. The majority of Hyundai smart key fobs use the CR2032 battery, which is found in many shops and online. Once you have the battery in place shut down your key fob and then test it to determine if it's working again.

Contacts

If your Hyundai key fob suddenly stopped functioning and you didn't drop it, there may be a problem with the internal chip. The receiver module in your car uses a radio frequency signal to communicate with the remote control, so in the event that this signal is affected by nearby transmitters or objects, it may cause the key fob's functionality to cease correctly.

If you're looking for an efficient way to unlock, lock and start your vehicle during your Reno commute, look into the Hyundai Digital Key system. The advanced keyless system operates with an app on your smartphone. It allows you to share Digital Key access up to three people. This is helpful for giving a friend a ride or when you're leaving your car with valet services.

The most common reason for the Hyundai i20 key fob to stop functioning is an inactive battery. It's time for a new battery if yours shows signs of age like a slow operation or no response at all. While the process of opening and replacing the battery in your Hyundai key fob battery isn't too difficult but there are a few things you should know before starting. Take a photo or make notes of how the old battery is placed on the circuit board. This will assist you in placing the new battery in the same spot.

Water Damage

The key fob comes with rubber seals that protect the chip's electronics from water. So, if it is able to withstand the splash of water from a washing machine, or a brief submersion in light rain it's unlikely to be damaged. However, if you've dropped it in a pool or in the ocean, the water may get through the seals and damage the circuit board, which is expensive to repair.

The first step is drying the key fob completely. This can be done in many ways. It can be placed in a plastic container with silica gel packets which will suck the moisture out of it. You can also use rice that has not been cooked, but it is crucial not to touch the key fob while it's still wet as this could contaminate the internal components.

You can also clean the contacts of the circuit board by using isopropyl or electronic cleaner. If, however, the chip is damaged, it's best to accept that you'll need to replace the key fob.

Replacing the battery on the Hyundai key fob is simple and usually not messy. You can follow a YouTube video tutorial to help you through the process or refer to your owner's manual. It's a good idea keep an extra key fob on hand so you can drive around in your vehicle while you wait for your repaired key.

Diagnosis of a Fault

If your check engine light is on and a fault code is present it may be difficult to determine the issue without the use of a diagnostic scanner, typically referred to as an OBD 2. These can be purchased in Bluetooth models that connect to your phone, or standard models with an integrated reader.

The throttle position sensor (TPS), Hyundai key fob which is located in the i20, can become defective. This sensor is responsible to measure the opening angle of the throttle valve. This information is passed to the control unit, and contributes to the calculation of the amount of fuel needed. A malfunctioning throttle sensor could cause jerky acceleration, RPM fluctuations and decreased engine performance.

Another issue that is common in the i20s is the malfunctioning transmission. The transmission is a complex component that contains a number of gears that work together to transfer power from the engine. The friction between the gears cause wear over time which can cause the transmission to fail. Signs of a defective transmission include clunking or grinding noises and jerky acceleration.

Spark plugs are another area of concern for the i20. A defective plug can cause damage to engines by not giving enough sparks to each engine. A damaged spark plug could result in costly and serious engine damage if not properly checked.