Lane Departure Related Problems of the 2021 Tesla Model Y

Table 1 shows four common lane departure related problems of the 2021 Tesla Model Y. The number one most common problem is related to the assist (43 problems). The second most common problem is related to the warning (19 problems).

Table 1. Lane Departure related problems of Tesla Model Y


Recently reported Lane Departure problems of the 2021 Tesla Model Y

The Assist problem

On October 1, 2026 at approximately 7:55 pm, I was driving my 2021 Tesla Model Y with autopilot/driver-assistance engaged. The vehicle struck a fixed support pole of the canopy at my driveway. The pole was stationary, but the vehicle did not avoid it.   Read details...

The Warning problem

Error ui_a020 "steering assist reduced" appears without any noticeable steering changes at the moment, but with a warning that steering may become increasingly harder and harder. There were recent recalls on other models of Tesla.   Read details...

The Blind Spot Detection problem

While driving my Tesla on fsd mode, my Tesla had critical error and warn me to take over. My navigation and gps froze. I did several reboot and power cycle and nothing worked. I reach out to Tesla and they stated that I will need a new computer hardware replacement.   Read details...


Lane Departure related problems in other Tesla Model Y model year vehicles:



☘ Model Y Service Bulletins
☤ Model Y Defect Investigations