Impact sensing door unlock system
All doors will be automatically unlocked when an impact causes the air bags to deploy.
Speed sensing door lock system
All doors will be automatically locked when vehicle speed exceeds 9 mph (15 km/h).
All of the doors will be automatically unlocked after the engine is turned off.
Shift lever auto door lock
All doors will be automatically locked when shifting the shift lever out of P (Park) with the engine running.
You can activate or deactivate the Auto Door Lock/Unlock features from the User Settings Mode on the LCD display.
Hyundai Sonata LF 2014-2019 Service Manual: Crash Pad Side Cover Components and Components Location
Component Location
[LH]
1. Crash pad side cover [LH]
[RH]
1. Crash pad side cover [RH]
...
Hyundai Sonata LF 2014-2019 Service Manual: Side Impact Sensor (SIS) Description and Operation
Description
Side Impact Sensor (SIS) system consists of two P-SIS which
are installed at each center of the front door module (LH and RH) and
two SIS which are installed at each center pillar nearby (LH and RH).
Side Pressure Sensor is also called P-SIS because it detects pressure due to col ...