2020 Tesla Model 3 Complaints

Issue 1: While using Full Self-Driving (Supervised) at night on a two-lane road with a straight lane and a turn lane, the vehicle crossed the white lane markings and drifted into the adjacent lane. I had to manually intervene to correct many times. This happens regulary at night. I clean the lenses on the cameras but it doesn't reslove the issue. Issue 2: While using Full Self-Driving (Supervised), the vehicle positioned itself in the incorrect lane when entering a roundabout, selecting the wrong entry lane for my intended exit. This happens at day and night about 50% of the time. I report the issue via the Tesla feedback, but they do not fix it.

Sunday [XXX] downtown Sacramento, driving about 25 mph. Heard a loud bang—bolt sheared off front subframe. Steering felt lagging upon making a right turn vehicle proceeded in a very wide turn, pulled into parking lot. Wheel locked right as I exited [XXX] parking spot; steering went slack, brakes scraped rotor. Two witnesses saw hardware hit pavement. AAA tech removed tire: lower control arm bolt missing, no Loctite, subframe raw. Second bolt loose—single point of failure. Tesla missed this on six different service visits and during their one-twenty inspection before delivery. Recall 21V835 should’ve flagged it but service personnel assured me all clear on every visit . Vehicle towed to Tesla service center at 1104 Tinker rd, Rocklin, CA. Tesla shop manager Sal confirmed this failure as manufacturers defect, and poor assembly. Safety was seconds from total loss. Need probe. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Incident Date: Feb 1, 2026, 2:45 PM PST Location: Camarillo, CA (Pleasant Valley Rd & Village Commons Blvd) Description: The vehicle (Tesla Model 3, FSD Supervised) attempted an unprotected left turn. The system identified a gap but paused excessively before initiating the maneuver. After the pause—when the gap was no longer safe—the system proceeded to turn anyway, directly into the path of a speeding oncoming vehicle. The system failed to abort the maneuver after its own hesitation. It also failed to accelerate with the urgency required to clear the path. I was forced to manually override with emergency acceleration and steering into an oncoming lane to avoid a high-speed T-bone collision. This appears to be a "stale data" failure where the car executed an old plan that was no longer valid.

The front suspension control arms on my 2020 Tesla Model 3 are squeaking and show premature wear. The noise occurs during normal driving and is accompanied by clunking, which concerns me about potential control arm failure and loss of vehicle control. My vehicle is only 40k miles and it’s a very common issue that Tesla gets to make money on. Kind of funny it happens to everyone right when the warranty ends. I am aware that this is a known issue affecting multiple Model 3 vehicles. Despite proper maintenance, the problem persists and may present a safety risk. I request that this be officially recorded as a safety complaint.

Vehicle made thunking noise when driving over uneven surfaces such as bumpy roads, speed bumps, or railroad tracks. Diagnosis at Tesla service center showed front upper control arms assemblies (left and right), lower lateral link, and front lower compliance link (left and right) required replacement. Of note: upper control arm assemblies were previously replaced under warranty in November 2021 at 28000 miles. This short interval indicates defective suspension components leading to cascading failures putting driver safety at risk.