When installing the belt, make sure not to damage the retractor.
Remove the rear seat back cover [LH].
(Refer to Rear Seat - "Rear Seat Back Cover")
After loosening the mounting nut (B), then remove the rear center seat belt retractor (A).
Tightening torque :
39.2 ~ 53.9 N.m (4.0 ~ 5.5 kgf.m, 28.8 ~ 39.8 lb-ft)
Install in the reverse order of removal.
Replace any damaged clips.