Passengers should not move out of or change seats while the vehicle is moving.
A passenger who is not wearing a seat belt during a crash or emergency stop can be thrown against the inside of the vehicle, against other occupants, or be ejected from the vehicle.
Do not use any accessories on seat belts.
Devices claiming to improve occupant comfort or reposition the seat belt can reduce the protection provided by the seat belt and increase the chance of serious injury in a crash
Do not modify the front seats.
Modification of the front seats could interfere with the operation of the supplemental restraint system sensing components or side air bags.
Do not place items under the front seats.
Placing items under the front seats could interfere with the operation of the supplemental restraint system sensing components and wiring harnesses.
Do not cause impact to the doors.
Impact to the doors when the ignition switch is in the ON position may cause the air bags to inflate.
Modifications to accommodate disabilities.
If you require modification to your vehicle to accommodate a disability, contact the HYUNDAI Customer Connect Center at 800- 633-5151.
Adding equipment to or modifying your air bag equipped vehicle
If you modify your vehicle by changing your vehicle's frame, bumper system, front end or side sheet metal or ride height, this may affect the operation of your vehicle's air bag system.
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the smart key unit.
(Refer to Body - "Smart Key Unit")
4.
Disconnect the body control module connectors (A).
5.
Remove the body control ...
Hyundai Elantra AD (2016-2020) Service Manual: Heater Unit Components and Components Location
Component Location
1. Heater unit assembly
Compoents
1. Shower duct [LH]2. Heater core cover3. Heater core & Seal assembly4. Mode actuator5. Temperature control actuator [LH]6. PTC Heater7. Heater unit pad8. Air guide [LH]9. Heater case [LH]10. Evaporator core assembly11. Heater core ...