Every time I get out of the car my seat belt tension is loose.. Is there a way to tighten it on a 2018 ES350?

 

If you mean it is not recoiling after you unbuckle it, I would think that would be a warranty issue if it is still under warranty. I don't know how to fix it but my '89 Corolla AllTrac Wagon has been not recoiling on the driver side for several years. I'm afraid to try lubricating it for fear of making a mess. As I get out of the car I just push it up with my left hand. When I pull it down to buckle it, it fits tight then.

 

I been seeing on youtube that you need to pull it out all the way and clean it with soap and water and clean the hole thing it goes through.

 

We have a 1996 Camry and the seatbelt tension is a lifetime warranty—I suppose a safety issue. We had it replaced once because it would not recoil well.