Hyundai Tucson: Warnings and indicators / 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 malfunction has been detected somewhere in the emission control system.

This light will also illuminate when the ignition switch is turned to the ON position, and will go out in a few seconds after the engine is started. If it illuminates while driving, or does not illuminate when the ignition switch is turned to the ON position, take your vehicle to your nearest authorized HYUNDAI dealer and have the system checked.

Generally, your vehicle will continue to be drivable, but have the system checked by an authorized HYUNDAI dealer promptly.

CAUTION

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 ...

ESC indicator (Electronic Stability Control)
The ESC indicator will illuminate when the ignition switch is turned ON, but should go off after approximately 3 seconds. When the ESC is on, it monitors the driving conditions and under normal ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Radiator Repair procedures
Inspection Radiator Cap Testing 1. Remove the radiator cap, wet its seal with engine coolant, and then install it on a pressure tester. 2. Apply a pressure of 93.16~122.58 kPa (0.95~1.25 kgf/cmx, 13.51~17.78 psi). 3. Check for a drop in pressure. 4. If the pressure drops, replace ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Repair procedures
Operation and Leakage Check Check all of the following items : ComponentProcedureBrake Booster (A)Check brake operation by applying the brakes during a test drive. If the brakes do not work properly, check the brake booster. Replace the brake booster as an assembly if it does not work proper ...

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