I got my M3 in July with VIN # 40xxx. My car equips with EAP and FSD. After several weeks of driving, I am pretty much familiar with all of the car's functions and features. The car does not have any mechanical or cosmetic issues when delivered. But it had parking light warning, washer fluid low warning and vampire drain problems, which all were fixed via software updates. One other issue I notice is with autosteer randomly unavailable. What I mean by autopilot unavailable, that means the autosteer icon, speed limit sign, cruise control icon, and lane markings are all disappeared from the screen. See attached image. If I double tap to engage autopilot, it would show "cruise not available". However, when autopilot is available, the system works great. There are several times which I was driving on highway using Autopilot. All the sudden, the autopilot beeped and warned me to hold the steering wheel using both hands and the screen showed cruise not available. Then speed limit sign, cruise control icon and land marking disappeared for the rest of my trip. It really scared me. I think this may be a safety issue. So I took my car to Sunnyvale service center last week. The technician sat with me for a test drive. We drove on residential streets and Highway 280. For the entire trip, autopilot was not available. So they took the car in and gave me a loaner. My car was at the service center for 12 days. They did a autosteer diagnostics and could not find any issue. The only issue they found was ECU power low and they updated the battery bootloader system. They also updated firmware from 26.3 to 28.5. They did a final test drive before the car was returned to me. But now I have the car for a few days, I am still facing the same issue. Should I bring my car to another service center? Does anyone experience similar problem?