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 Service Manual: Advanced Smart Cruise Control (ASCC) Unit-Radar Description and Operation
Description The smart cruise control unit is installed on the front right side of the chassis.A radar sensor is embedded in the front section of the unit. This sensor detects vehicles and objects in front of the vehicle.The radar sensor can detect up to 64 objects ahead of a vehicle. The ...

Hyundai Sonata LF 2014-2019 Owners Manual: Mode selection
The mode selection button controls the direction of the air flow through the ventilation system. Air can be directed to the floor, dashboard outlets, or windshield. Five symbols are used to represent Face, Bi-Level, Floor, Floor-Defrost and Defrost air position. Face-Level (B, D, F) Air flow is ...