Hyundai Sonata: Door locks / Operating Door Locks from Inside the Vehicle

With the door lock button

Information

If a power door lock ever fails to function while you are in the vehicle try one or more of the following techniques to exit:

Operating Door Locks from Outside the Vehicle
Mechanical key If you lock the driver's door with a mechanical key, all vehicle doors will lock. If you unlock the driver's door with a mechanical key, the driver's door will unlock. Once the doors ...

With the central door lock switch
When pressing the () switch (1), all vehicle doors will lock. When pressing the () switch (2), all vehicle doors will unlock. If the key is in the ignition switch and any door is opened, the doors ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Child-Protector Rear Door locks
The child safety lock is provided to help prevent children seated in the rear from accidentally opening the rear doors. The rear door safety locks should be used whenever children are in the vehicle. The child safety lock is located on the edge of each rear door. When the child safety lock is in ...

Hyundai Sonata LF 2014-2019 Service Manual: DCT Control Module (TCM) Repair procedures
Inspection Transmission Control Module (TCM) Inspection Procedure 1. Inspecting TCM ground circuit: Measure the resistance between the TCM and chassis ground. (Check the terminal connected to the chassis ground while using the back of the harness connector as the base point for TCM.) ...

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