Hyundai Tucson: Smart key / Start-up

You can start the engine without inserting the key.

CAUTION

To prevent damaging the smart key:

Panic button
Press the Panic button (4) for more than one second. The horn sounds and hazard warning lights flash for about 30 seconds. To cancel the panic mode, press any button on the smart key. ...

Mechanical key
If the Smart Key does not operate normally, you can lock or unlock the door by using the mechanical key. Press and hold the release button (1) and remove the mechanical key (2). Insert the me ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Pressure Sensor Description and Operation
Description The 4WD ECU makes a Motor Pump(Actuator) turn round for generating an oil pressure. And then it presses a multiple disk clutch and transfers the generated torque into rear wheels. Its torque value varies according to a pressure status. ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Troubleshooting
Failure Diagnosis 1. In principle, ESC and TCS controls are prohibited in case of ABS failure. 2. When ESC or TCS fails, only the failed system control is prohibited. 3. However, when the solenoid valve relay should be turned off in case of ESC failure, refer to the ABS fail-safe. 4. ...

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