2. Raise the back sections to a vertical position.
3. Always check that the seat belt strap does not become caught under the back of the rear seat.
4. Pull from inside the vehicle by the top edge of the rear seat backrests to ensure that the seat backrests are securely latched.
5. Fasten the diagonal lap seat belt installed in the center of the rear seat. Check the correct location of the straps of all seat belts installed in the rear seat.
Fig. 1.123. Indicator for correct installation of the rear seat back
After returning the seat back to the upright position, make sure that the red indicator is not visible. If the rear seat back sections are not fully returned to the upright position and are not locked, this is dangerous. During emergency braking or sudden maneuvering of the car, the rear seat back may suddenly fall forward and injure the passenger. If the red indicator is visible above the lock button, then the rear seat back is not locked in the upright position (fig. 1.123).
Content based on information from: Mazbook