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: Smart Key Unit Repair procedures
Removal Smart Key Unit 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box housing. (Refer to the BD group - "Crash pad") 3. After disconnecting the smart key unit connector (A), loosen the smart key unit mounting bolts, and remove the smart key unit (B). RF R ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Specifications
Specifications ItemSpecificationMaster cylinderxLHDRHDTypeTandem typeTandem typeCylinder I.D.CBS: O  20.64O  25.4 mmABS/ ESP: O  22.22mmPiston stroke45mm(1.77in) / 30mm(1.18in)Fluid level switchProvidedProvidedBrake boosterxLHDRHDType11" Single8+9" TandemBoosting ratio9.0 : 19.0 ...

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