How to Disarm a Hyundai Sonata OEM Alarm

1. Insert the key into the driver's door lock and turn it to the unlock position.

2. Open the driver's door.

3. Press the "Unlock" button on the key fob.

4. The alarm should disarm and the car will be unlocked.

If the alarm does not disarm, you can try the following steps:

1. Check to make sure that the key is inserted all the way into the door lock.

2. Try turning the key to the lock position and then back to the unlock position.

3. Press and hold the "Unlock" button on the key fob for a few seconds.

4. If the alarm still does not disarm, you may need to have it serviced by a Hyundai dealer.