Convenience

Immobilizer System

~1min read

The immobilizer system helps protect your vehicle from theft. If an incorrect key (or other device) is used, the engine fuel system is disabled.

When the ignition key is in the ON position, the immobilizer system indicator should illuminate briefly, then turn off. If the indicator starts flashing, the system does not recognize the key code.

Turn the ignition key to the LOCK/OFF position, then back to the ON position.

The system may not recognize your key code if another immobilizer key or other metal object (such as a key ring) is near the key. The engine may not start because metal can block the transponder signal from transmitting normally.

If the system repeatedly fails to recognize the key code, contact an authorized HYUNDAI dealer.

Do not attempt to modify this system or add other devices to it. Electrical problems may occur, making your vehicle inoperable.

Information

To prevent vehicle theft, do not leave spare keys in the vehicle. Your immobilizer password is a unique customer password and must be kept confidential.

NOTICE

Do not expose the key to moisture, static electricity, or rough handling. The immobilizer system may malfunction.

Test yourself

A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.