Hyundai Tucson: Electronic Stability Control (ESC) / Indicator lights

When the ignition switch is placed to the ON position, the ESC indicator light illuminates, then goes off if the ESC system is operating normally.

The ESC indicator light blinks whenever the ESC is operating.

If ESC indicator light stays on, your vehicle may have a malfunction with the ESC system. When this warning light illuminates have your vehicle checked by an authorized HYUNDAI dealer as soon as possible.

The ESC OFF indicator light comes on when the ESC is turned off with the button.

WARNING

When the ESC is blinking, this indicates the ESC is active: Drive slowly and NEVER attempt to accelerate. NEVER press the ESC OFF button while the ESC indicator light is blinking or you may lose control of the vehicle resulting in an accident.

CAUTION

Driving with varying tire or wheel sizes may cause the ESC system to malfunction. When replacing tires, make sure they are the same size as your original tires for this vehicle.

ESC operation
ESC ON condition When the ignition switch is in the ON position, the ESC and the ESC OFF indicator lights illuminate for approximately three seconds and goes off, then the ESC is turned on. If t ...

ESC OFF usage
When driving The ESC OFF mode should only be used briefly to help free the vehicle if stuck in snow or mud by temporarily stopping operation of the ESC to maintain wheel torque. To turn ESC off wh ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Output Speed Sensor Repair procedures
Inspection 1. Check signal waveform of Input & output speed sensor using the GDS. Specification: Refer to "Signal Wave Form" section. Removal 1. Remove the valve body assembly. (Refer to Hydraulic System - "Valve Body") 2. Disconnect the input & output speed sensor conn ...

Hyundai Tucson (LM) 2010-2015 Service Manual: External Amplifier Repair procedures
Removal External Amplifier 1. Remove the rear right luggage side trim. (Refer to Body - "Interior Trim") 2. Remove the external amplifier (B) after disconnecting the connectors (A) and loosening the mounting nuts. Installation External Amplifier 1. Install the external amplifier afte ...

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