2021 Tesla Model 3 visibility problems

Filed Oct 24, 2026 · Driver assistance, Visibility · CA

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 a permanent failure of the primary computing hardware. The manufacturer requires an out-of-pocket Car Computer replacement cost of $2,136.00 to restore federally mandated safety features that were operational prior to the manufacturer's software deployment. The vehicle is currently being operated without active safety overrides, emergency braking, or backup visibility.

Filed Oct 8, 2026 · Body, Visibility · IL

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 no guidance on whether the trunk is safe to use in the meantime. Other owners of 2021-2023 Model 3s with the factory power trunk have reported the power strut bending the hinge and liftgate in normal use. I am reporting this as a potential defect in the power liftgate strut and hinge design. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 16, 2026 · Driver assistance, Electrical · IL

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 be excluded as a cause, trigger, or contributing factor. Tesla has separately acknowledged in the federal safety agency Recall 26V283 that software on certain HW3-equipped Model 3 vehicles can prevent camera streams from reaching the MCU and result in loss of the rear-view camera image. I am not claiming that recall necessarily applies to this specific failure; I am reporting the similar sequence so the federal safety agency can determine whether there may be a broader defect pattern. The vehicle remains unrepaired and is available for inspection upon request.

Filed Aug 31, 2026 · Driver assistance, Visibility · IL

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 photographs taken from the driver's seat showing the obscured view. I reported this to Tesla on 8/22/2026 through two in-app channels; both were closed without a response. I escalated by email on 8/24/2026. The service manager responded and scheduled an inspection. As of this filing the substance has not been identified, no cause has been determined, and no correction has been made. The condition remains active. I am filing because a windshield that intermittently obscures forward vision under ordinary weather conditions is a driving hazard, and because the vehicle has been operated in that condition while awaiting resolution. No crash, injury, or fire has occurred.

Filed Jan 15, 2026 · Visibility · MN

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.

Filed Dec 19, 2025 · Visibility · OR

-- 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. -- Additional Notes There is no option to permanently disable automatic wipers when cruise control or Autopilot is enabled, nor any way to adjust sensitivity of the rain detection. Because the system repeatedly re-enables itself, the driver must divert attention from driving to manage wiper behavior, often multiple times during a single trip. This is especially hazardous when using standard cruise control without Autopilot, where full driver attention is required.

Filed Jul 3, 2025 · Visibility · WA

The interior rearview mirror exhibits tiny bubbles around the edges and streaking or cloudiness within the layered structure of the auto-dimming (electrochromic) mirror. The problem has occurred in multiple potential replacement mirrors, indicating a design or manufacturing defect. The issue first appeared as small bubbles around the outer edge, then progressed to visible streaking and cloudiness within the mirror surface. These symptoms impair rear visibility, particularly at night or in bright light conditions, when glare and distortion are most severe. This creates a safety hazard by: 1) Obstructing the driver’s clear view of approaching vehicles. 2.) Reducing reaction time Increasing the risk of rear-end collisions or unsafe lane changes. 3.) It compromises overall driver situational awareness, especially in high-speed or congested traffic environments. The defect is not isolated to a single part. Defective mirrors have been retained for documentation and are available for inspection. Mirror replaced with same part number under limited warranty, but the replacement option showed same failure, suggesting a broader defect not yet addressed by a permanent fix. Additional replacement parts offered show similar defects.

Filed Apr 5, 2025 · Visibility · MA

Rear window defroster is permanently broken. Tesla made 10 attempts to repair it over the past year+ and it is still not fixed. Under certain weather conditions, there is zero visibility through the rear window.

Filed Mar 2, 2025 · Visibility · MO

The defrost function on the computer went crazy and cracked the windshield in the morning, covered in snow. - It’s hard to see out of, and Tesla said it’s not covered even though it’s only 6 months old and to just drive it. - No, they want $1600 to look at it. I can’t get them to agree to look at it, but don’t give up. - no the defrost was slow and low, as winter is with no issues. So it snowed a lot in KC, MO. I keep my heat at 60 degrees and the fan on low. I unlocked my car with my phone to get some stuff out, but I started clearing off the back door stairs first to make a path. But only 10 minutes after unlocking it, I heard a loud pop. I thought it was electric, so I unplugged it and got in to leave and immediately was shocked to see and hear the heater on so high I didn’t know it went to that level. It had to have been 100 degrees in the car then before I even sat down… I saw the HUGE CRACK across the windshield from the bottom right passenger side, perfectly in the corner of the glass, going all the way to eye level in front of the driver. Diagonally, corner to corner. There isn’t a scratch or speck on this car. I hand wash it every week when it’s not freezing out. I keep the left scroll wheel programmed to control the fan speed, so I pushed it to lower the leaf blower setting it was on to find out it was still set to 60 and fan speed 2. I had to go up and down a few times to get it to go down to normal. I took a video and photos, and Tesla said repeatedly it’s going to cost $1600, even though I just bought it 6 months ago.

Filed May 1, 2024 · Brakes, Driver assistance · VA

Tesla ADAS detects non existent objects and issues collision alerts and phantom brakes randomly if there is no cars in front of the Tesla, braking abruptly and almost getting me into rear end accidents. Tesla ADAS freaks out when making lane changes randomly, shaking violently and giving the driver and its passengers a fishtailing simulation. Auto wiper triggers randomly while it's sunny, distracting the driver and forcing an interaction on the center console to stop it. Auto wiper cannot be turned off as it reengages upon using Tesla ADAS. The rear view camera lags. It stutters and shows me a delayed view. Compounded by the Model 3's very small rear view mirrors and side mirrors, this is incredibly dangerous as I have no way of gaining sufficient visibility of the back of the car. Tesla service told me this is all normal.