See also:

Immobilizer system (if equipped)
Your vehicle is equipped with an electronic engine immobilizer system to reduce the risk of unauthorized vehicle use. Your immobilizer system is comprised of a small transponder in the ignition key ...

Check battery and cables
Winter puts additional burdens on the battery system. Visually inspect the battery and cables as described in section 7. The level of charge in your battery can be checked by an authorized HYUNDAI ...

Locking doors
1. Close all doors. 2. Push the "LOCK" button on the transmitter. 3. At the same time all doors lock, the turn signal light will blink once to indicate that the system is locked. ...