2019 Lexus Nx

We bought used 2019 Lexus NX 300 with 11573 miles Lexus dealer salesman said the car was still under warranty Before delivery to customer Lexus dealer did performed 161points of service such as : electrical same as mechanical components on entirely of the car and it s/ b working properly without any problems In the past over two years I’ve continued to bring the car back for service Last year I did question ask some service manager about these squeaking noise when driving on the road and they did responded it’s normal ( four original tires are comes with my 2019 Lexus SUV )last time I discovered about two tires brand Dunlop ST 30 size : 225/65R17 -102H show numbers of cracked along to side of the tires and I did mentioned with Lexus dealer but they said its normal and not warranty In the list 161 points of Lexus certified PDF under pages 5 of 6 Section : Hoist items# 114 mention about this condition was covered from Lexus I’ve been trying to work out with them in fact I did contact with two Lexus dealers at Westminster and Riverside city without any luck and only received with “ a runaround “ answers My 2019 Lexus NX 300 shows with 26705 on odometer and I need to report to NHTSA about an unsafe and dangerous issues and prevent it happens in the future customers Thanks for help and let me know if you need more information