Lane Departure Related Problems of the 2021 Tesla Model 3

Table 1 shows three common lane departure related problems of the 2021 Tesla Model 3. The number one most common problem is related to the assist (14 problems). The second most common problem is related to the warning (ten problems).

Table 1. Lane Departure related problems of Tesla Model 3

Problem Category Number of Problems
Assist problems
14
Warning problems
10
Blind Spot Detection problems
3

Recently reported Lane Departure problems of the 2021 Tesla Model 3

The Assist problem

Tesla full self driving software malfunctioned and turned into oncoming traffic lanes instead of crossing over to the correct opposite side of the roadway. This occurred after getting off a on ramp in ukiah, California around 2am Nov 15, 2025.   Read details...

The Warning problem

The car, with no known or evident driver, stopped the lane awareness, cruise control, etc. All of those just stopped working and per Tesla that's expected which is surprising since it's all part of the safety systems.   Read details...

The Blind Spot Detection problem

Side camera glare at night when signaling   Read details...


Lane Departure related problems in other Tesla Model 3 model year vehicles:



Model 3 Service Bulletins
Model 3 Defect Investigations