I installed D2 coilovers on my 2022 IS350 F Sport and lowered the vehicle about an inch and a half. After about 2-3 months of driving with no issues, now all my ADAS (Advanced Driver Assistance Systems) sensors are all lighting up. Brought it to the local dealer and said that it needs a BSM calibration. However, they cannot do the work because I modified the suspension and lowered the height. They said they can be held liable if I get into an accident. I called other local shops about needing a BSM calibration and told me the same thing. Has anyone else experienced their ADAS sensors acting up after lowering the car? I have no other modification done except the coilovers. I don't want to lose all the safety features on the car just because I lowered it. Not sure if my only choice is to put back my stock suspension. I appreciate if someone can give me advise or solution on this. TIA.

 

I had my RC lowered to about an inch and a half off the ground and never needed to recalibrate anything. Everything worked as it should too. Those are a cheaper set of coilovers, but that shoudnt affect any of your safety systems. Unless you pulled a wire out of a connector or damaged something, you should be alright.