You can start the engine without inserting the key.
NOTICE
To prevent damaging the smart key:
NOTICE
Always have the smart key with you when leaving the vehicle. If the smart key is left near the vehicle, the vehicle battery may be discharged.
Hyundai Sonata LF 2014-2019 Service Manual: Main Crash Pad Assembly Components and Components Location
Component Location
1. Main crash pad assembly
...
Hyundai Sonata LF 2014-2019 Owners Manual: Side Curtain
To use the side curtain:
1. Pull up the curtain by the hook (1).
2. Hang the curtain on both sides of the hook.
NOTICE
Always hang both sides of the curtain on the hook.This could cause damage
to the side curtain if only one side of the curtain is hooked.
Do not let any foreign material get in ...