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how To replace car key battery hyundai to Fix a Problem With Your Hyundai i20 Key Fob

Hyundai i20 owners can lock and unlock their vehicles remotely. They can also start their vehicle in advance and monitor the key fob's functions using an app on their smartphone.

However, occasionally the key fob will stop functioning for a reason. This could be caused by the battery being dead or water damage, or signal interference.

Battery

Hyundai has developed the smart key fob for their vehicles that allows you to perform a range of remote functions including locking and unlocking doors, starting your vehicle and triggering a panic button. It's a wonderful feature for drivers to save time and effort, but it can be a hassle if the system isn't working properly. There are a few things you can do when your Hyundai i20's main fob is not working properly.

The first step is to test the battery. Most smart key fobs make use of a coin cell battery that can be replaced in a matter of minutes. This is usually the quickest and most affordable method to fix the issue. You can purchase replacement batteries at most stores and on the internet. Re-open the keyfob after installing the new battery to ensure that the battery is in the proper location and that it is in contact with all connections.

Note down the location of the old battery within the circuit before taking it out. This will allow you to install the new battery in the same way. Most Hyundai smart key fobs are powered by a CR2032 battery which is available in most shops and on the internet. Once you have the battery in place and closed, you can close the key fob and test it to determine if it's functioning again.

Contacts

If your Hyundai key fob suddenly stopped functioning and you did not drop it, there could be a problem with the internal chip. The receiver module in the car uses radio frequency signals to communicate with the remote. If these signals are obstructed by nearby transmitters, or objects the key fob could cease to function properly.

If you're looking for a reliable method to lock, unlock and start your car during your Reno commute, look into the Hyundai Digital Key system. This advanced keyless system works via an app on your smartphone and allows you to share Digital Key access up to three persons. This is useful when you offer a friend a ride or when you leave your car with valet services.

The most common reason for the Hyundai i20 key fob to stop functioning is an inactive battery. If yours is showing symptoms of dying, like slow operation or not responding at all, it's time to replace the battery. Although the process of replacing the Hyundai keyfob's battery isn't difficult, you must be aware of a few points before beginning. The first step is to take note of the way that the old battery is laid inside the circuit board or snap a picture. This will allow you to place the new battery in the same position.

Water Damage

The key fob comes with rubber seals to protect the chip's electronic components from water. If it is able to withstand a short splash from a washing-machine, or an unintentional dip in light rain it's unlikely to get damaged. If you drop it into an ocean or pool, the water could penetrate the seals, damaging the circuit board. This is a costly repair.

The first step is to dry the key fob thoroughly. You can do this in a variety of ways. You can place it in a plastic bag containing silica gel packets which will absorb the moisture out of it. Or, you could use rice that has not been cooked, but it is important not to contact the key fob when it's still moist because it could cause contamination to the internal components.

You can also clean the contacts of the circuit board using isopropyl or electronic cleaner. If the chip is in danger of being damaged, it's best to accept you'll have to replace the key fob.

Replacing the battery on a Hyundai key fob is simple and typically not a big mess. You can follow a YouTube tutorial video to help you along the way or consult your owner's manual. It's a great idea to keep an extra key fob on hand so you can drive around in your vehicle while you wait for your repaired key.

Diagnostics of a fault

If your check engine light comes on and an error code is visible, it can be difficult to identify the problem without the use of a diagnostic scanner often referred to as an OBD 2. They are available in Bluetooth models that connect to your smartphone, or standard models that have an OBD 2 reader.

One of the most frequent issues with i20s is the throttle position sensor (TPS) becomes defective. This sensor is used to measure the opening angle of throttle valve. The information is then sent to the control unit, and contributes how to find my hyundai key fob the calculation of the amount of fuel required. A malfunctioning throttle position sensor will result in reduced engine performance, jerky acceleration and RPM variations when driving.

Another issue that is common in i20s is the faulty transmission. The transmission is a complex component that has many gears that mesh together to transfer power from the engine to wheels. As time passes friction between gears can lead to transmission failure. Signs of a malfunctioning transmission include clunking or grinding noises and rapid acceleration that is jerky.

Spark plugs are an additional issue for the i20. Spark plugs that are defective can cause damage to engines by not providing enough sparks to each engine. If unchecked, a damaged spark plug can result in severe and expensive engine damage.