Hyundai Sonata: Convenient features of your vehicle / Door locks

Immobilizer System

The immobilizer system protects your vehicle from theft. If an improperly coded key (or other device) is used, the engine's fuel system is disabled. When the ignition switch is placed in the ON posit ...

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 ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Limitations of the System
The driver must be cautious in the below situations may not work properly when : It is difficult to distinguish the lane marker from road when the lane marker is covered with dust. It is difficult to distinguish the color of the lane marker from road. There is something looks like a lane mark ...

Hyundai Sonata LF 2014-2019 Owners Manual: Air intake control
This button is used to select the outside (fresh) air position or recirculated air position. Recirculated air position The indicator light on the button illuminates when the recirculated air position is selected. With the recirculated air position selected, air from the passenger compartment wi ...