Hyundai Sonata: Manual Heating and Air Conditioning / OFF mode

Push the OFF button of the front to turn off the air climate control system. You can still operate the mode and air intake buttons as long as the ignition switch is in the ON position.

Air conditioning
Push the A/C button to manually turn the system on (indicator light will illuminate) and off. ...

System Operation
Ventilation 1. Select the Face Level mode. 2. Set the air intake control to the outside (fresh) air position. 3. Set the temperature control to the desired position. 4. Set the fan speed control to t ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Troubleshooting Trouble SymptomProbable CauseRemedyExcessive play in steeringLoose U-joint boltRetighten or replace as necessaryLoose yoke plugRetightenLoose steering gear mounting boltsRetightenLoose or worn tie rod endRetighten or replace as necessarySteering wheel does not return properlyExc ...

Hyundai Sonata LF 2014-2019 Service Manual: Lane Departure Warning System (LDWS) Unit Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the LDWS unit cover (A). 3. Disconnect the LDWS unit connector (A). 4. Remove the LDWS unit after disengaging the mounting bracket (A). Installation 1. Align LDWS unit with windshield bracket using forward edge p ...

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