1. From the rear of the vehicle inspection of the attachment of three buckles seatbelt. 2. From the rear of the vehicle check the remaining fastening seat belts. 3. Check the gasket seat-belt between the seatback and cushion. 4. Remove the seat cushion. 5. Inspect the suspension mounting of a lap belt. 6. Remove the C-pillar trim. 7. Tilt the rear seat backrest forward to the front of the seat cushion. 8. Check the fastening belt tensioners.