When using the rear center seat belt, the buckle with the "CENTER" mark must be used.
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components
1. Glass panel assembly2. Deflector3. Motor assembly4. Spring base assembly5. Plate rail assembly6. Guide rail assembly7. Drip link rail8. Seal tape9. Frame sub assembly10. Stopper11. Sunshade assembly12. Drip rail assembly
...
Hyundai Elantra AD (2016-2020) Service Manual: Troubleshooting
Troubleshooting
Problem Symptoms Table
Before replacing or repairing air conditioning components,
first determine if the malfunction is due to the refrigerant charge, air
flow or compressor.
Use the table below to help you find the cause of the
problem. The numbers indicate the priority ...