2021 Tesla Model 3 visibility/wiper problems

“Immediately following the installation of over-the-air software version 2026.32.3, the vehicle's center touchscreen lost all driving visualization capabilities. The backup camera now displays a black/non-responsive screen, removing federally mandated back-over protection. Additionally, the vehicle no longer provides active safety alerts, such as forward collision warnings or blind-spot obstructions, and driver-assist technologies (Autopilot) are entirely unavailable. Official Manufacturer Diagnosis: A physical diagnostic review of the vehicle's alert and signal history by Tesla Service confirmed an internal hardware communication failure directly induced by the software rollout. The official service logs state that the secondary Autopilot processor, designated as "Processor Turbo-B," has suffered a fatal fault and is failing to communicate. Tesla documentation acknowledges that this software-induced hardware lockup prevents the car from completing future software updates and has permanently disabled the safety vision suites. Current Vehicle Status: A subsequent physical replacement of the 12V low-voltage battery failed to resolve or clear the faults, confirming…”

“The power liftgate strut failed in normal use and bent the trunk liftgate, which now strikes the rear glass every time the trunk opens or closes. The vehicle has not been in a crash and the trunk was not obstructed or misused. The driver-side power strut stopped operating and the trunk would not open or close properly. On XXX Tesla Service ([XXX]) inspected the vehicle. The service record states the liftgate power strut was stuck in the closed position because the liftgate is bent to the right, hitting the glass on opening and closing. Tesla installed a new power strut, then removed it. A service message stated the hinge was replaced and the liftgate remains far out of alignment; the service record does not list a hinge replacement. The visit was marked resolved. The power trunk no longer functions. The bent liftgate contacts the rear glass on every cycle, so the glass can break on anyone standing at the rear of the vehicle while the trunk is opened or closed. Tesla referred the vehicle to a collision center, classified the repair as body damage, and stated its Extended Service Agreement does not cover it. No repair date or loaner was provided, and Tesla gave…”

“After a Tesla-delivered over-the-air software update, my 2021 Tesla Model 3 equipped with Hardware 3 experienced loss of the rear-view camera along with other camera and Autopilot-related functions. The exact date the condition first appeared is unknown, but it occurred after the software update. Camera calibration later became stuck and resets/recalibration did not restore functionality. Tesla Service inspected and reproduced the problem. Tesla documented camera alerts, inability to activate Autopilot, alerts for both pillar cameras and the front-main camera, proper voltage to the cameras, no short to body, and no change after testing a known-good camera. Tesla concluded that the affected cameras share a deserializer path internal to the HW3 car computer and diagnosed an internal car-computer failure requiring complete computer replacement and camera calibration. The safety concern is loss of the rear-view camera and multiple camera-based driver-assistance functions, reducing rear visibility and eliminating features that rely on those cameras. Tesla did not identify the root cause of the internal HW3 failure or establish that the preceding software event could…”

“Tesla replaced the windshield on my 2021 Model 3 at the Tesla Service Center in Schaumburg, IL. Days after the installation, following a light rain, a film appeared on the exterior surface of the glass. In the presence of moisture the film hazes over and substantially obscures forward visibility from the driver's seat. The first occurrence was on 8/22/2026 while leaving a venue in heavy pedestrian traffic. Forward visibility was significantly degraded. During that drive the vehicle's driver-assist system issued a take-control prompt and returned control to the driver. The system did not display a reason for the prompt, so I cannot attribute it; I am reporting that it occurred while visibility through the windshield was degraded. The condition is not removable by normal means. Windshield wipers and washer fluid do not clear it. The defroster/defogger does not clear it, which rules out interior condensation. It required manual scrubbing to reduce, and it has recurred repeatedly since. It presents only in high humidity or after precipitation; in dry conditions the glass appears normal. The condition did not exist prior to the windshield replacement. I have…”

“HVAC system went out at 7500ish miles. It was repaired under warranty, and a "fix" was administered through software by tesla. My HVAC has gone out again at 84k miles FOR THE SAME REASON. about 77k miles after it was just repaired. Quick check online. this is still a very common issue. No heat creates a significant safety hazard due to lack of the ability to defrost the vehicle or frost building up on cold days.”

“-- Summarized Explanation The automatic windshield wiper system behaves unpredictably and creates unsafe driving conditions. Wipers frequently activate when there is no rain, operate at excessive speeds during light rain, and, most critically, fail to activate during active rainfall. These failures reduce driver visibility and increase the risk of a motor vehicle crash. Automatic wipers are forcibly enabled whenever cruise control or Autopilot is activated, regardless of weather conditions. This requires the driver to repeatedly adjust or disable the wipers while driving. Sudden transitions to maximum speed during light rain are distracting and divert attention from the roadway, increasing cognitive load during vehicle operation. -- Attempted Remedies •Replaced windshield wipers multiple times using different manufacturers •Cleaned forward-facing camera/rain detection area •Applied windshield water-repellent treatments •Installed approximately 30–50 over-the-air software updates over four years •Multiple inspections at Tesla-authorized service centers Tesla has consistently stated the system is operating “as intended,” despite continued unsafe behavior. --…”