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: Smart Key Repair procedures
Smart Key Smart Key Code Saving 1. Connect the DLC cable of GDS to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on GDS. 2. Select the vehicle model and then do "Smart Key Code Saving". 3. After selecting "Smart Key Teaching" menu, push "ENTER" k ...

Hyundai Sonata LF 2014-2019 Service Manual: Front Seat Back Cover Repair procedures
Replacement     • Put on gloves to protect your hands.     • When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage. • Us ...