The 4-and 5-speed automatic transmissions of the Hyundai Sonata NF are 200,000 kilometers of mileage. Increasing the resource contributes to the correct handling of the box. It is not desirable to fully squeeze the accelerator pedal until the automatic box is heated. It takes about 20 minutes to warm up the transmissions.
Some specialists recommend that the box be warm-up in the winter period before the movement starts by moving the selector from "parking" to "drive" and back. You can also put the box lever in reverse mode and wait a minute without the brake pedal.