NHTSA Complaint #11629914 — 2018 INFINITI Q60

Hello, I purchased my Infiniti Q60 Red Sport brand new in 2028. About a year after that I started to have electrical issues with the car. I've brought it in to the Infiniti dealer in Valencia, CA numerous times during the warranty period (and a few times out of the warranty period), to have these issues addressed. Some were resolved and some were not. So In the past 4-5 years I've brought my vehicle in about 15 times or more to be fixed. The latest issue is a safety problem. About a week ago I noticed that the passenger seat belt sign on the dash does not come on when a passenger is seated without the belt engaged (normally I get a red warning sign that the seat belt is not buckled for the passenger). At the same time I also noticed that there's a red airbag indicator light that stays on at all times while driving. I brought the car in to the dealer again to have it diagnosed, but the service advisor stated that it will be $235 to diagnose the issue, and that more than likely I have to replace the whole seat for $3,500 or more, because the sensor is part of the seat. So to replace the sensor they have to replace the whole seat. I can not afford to pay thousands of dollars for something that is not wear and tear, nor abuse on my part. It seems to me that this should be covered my the manufacture, especially since the issue is safety related. I would greatly appreciate any help that you can offer. Thank you