I had this when I changed my interior bud, its telling u it can't detect the pre tensors for the seat belts. Its one of 2 things bud.
- U not reconnected up the connector block at the bottom of the seats. (Which I forgot to do on passenger seat :banghead🙂
- The pre seat belt tensiors have gone off in one or both seats and u can check this by seeing if a yellow plastic tag is popping out the seat belt clip.
If its the second 1 easy fix, just take the pre tensors off your old seats and fit them on your new ones.