general problems of the 2019 Toyota Highlander

I have captain seats in the middle. Driver side seat has 4 bolts that secure it to the vehicle floor. The front two bolts were ready to fall out. Caused a squeak that only my wife could hear due to my hearing impairment. I tightened that bolts and the squeak is gone. Pretty serious issue if only 2 of the 4 bolts holding the seat in place are tight.

My rear drivers side seat was not properly bolted down. I have been hearing a squeak for the past few years, that only went away when my child was sitting in the seat. We thought it was the car seat squeaking, but recently removed it since our child had grown big enough to no longer need it. I finally inspected the seat and noticed that the seat was moving when I put pressure on it. I took off the covers to the bolts on the front and noticed that I could literally remove them with my had. There was about a 1/16 to 1/8 inch of play in the seat. This is scary that my child has been riding in the unsafe seat for who knows how long. I do have videos of how loose they were, I could spin the washer freely.

Ever since I bought this car I have been having an issue where the srs airbag malfunction light comes on and my airbags are off seatbelts don't get recognized as buckled in. I have taken this car to the dealership numerous times to get it checked out but they cant seem to find a problem or solution. This is a major safety issue and I would really like someone to get involved in this issue and help me figure out my next steps because of what they tell me is that they just reset the modue and it never comes back on until 2-3 months from after they chekc it out and reset it. Please help me.