Hyundai Tucson: Warnings and indicators / Immobilizer indicator (if equipped)

Without smart key system

This indicator illuminates when the immobilizer key is inserted and turned to the ON position to start the engine.

At this time, you can start the engine. The indicator goes out after the engine is running.

If this indicator blinks when the ignition switch is in the ON position before starting the engine, have the system checked by an authorized HYUNDAI dealer.

With smart key system

If any of the following occurs in a vehicle equipped with the smart key, the immobilizer indicator illuminates, blinks or goes off.

Low fuel level warning light
This warning light indicates the fuel tank is nearly empty. When it comes on, you should add fuel as soon as possible. Driving with the fuel level warning light on or with the fuel level below ...

Malfunction indicator (MIL) (check engine light)
This indicator light is part of the Engine Control System which monitors various emission control system components. If this light illuminates while driving, it indicates that a potential malfun ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Transaxle Oil Temperature Sensor Repair procedures
Inspection 1. Turn ignition switch OFF. 2. Disconnect the solenoid valve connector (A). 3. Measure resistance between sensor signal terminal and sensor ground terminal. 4. Check that the resistance is within the specification. Removal 1. Remove the air cleaner assembly and ...

Hyundai Tucson (LM) 2010-2015 Service Manual: DBC Switch Repair procedures
Inspection 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the crash pad side switch assembly. (Refer to Body - "Crash Pad") 3. Check the continuity between the switch terminals as the DBC switch is engaged. ...

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