2020 Tesla Model 3 Visibility & Wipers Problems

I am reporting a spontaneous windshield crack that developed on my 2020 Tesla Model 3 Performance under normal operating conditions. After exiting a routine drive-through car wash in Las Vegas on a hot day, I noticed a hairline crack in the windshield. It originates from the very bottom edge within the black ceramic frit area, curves upward, and spans across the glass. There are no impact points, chips, or pits of any kind. I brought the vehicle to Tesla Service, where the Service Manager visually confirmed it is a stress crack not caused by external damage. Despite this, they stated that Tesla does not offer goodwill or warranty repairs for windshields, regardless of the nature of the failure. This raises a serious safety concern. A windshield is a structural component of the vehicle and critical for driver visibility. A spontaneous failure like this without external cause compromises safety, especially at highway speeds. There are numerous reports of similar spontaneous cracks in Tesla Model 3 vehicles, often originating from the same area. This suggests a potential systemic defect in the design, installation, or bonding of the windshield. I am requesting that the NHTSA investigate this issue for safety implications and possible structural design flaws.

A crack appeared on the interior of the windshield, with no marks of any exterior impact and no external crack or other mark on either surface of the windshield. The crack originated directly from the windshield positioned camera/rear view mirror.

The windshield wipers do not have proper functional control. There is no adequate manual control over the windshield wipers without being distracting, further more the windshield wipers constantly put themselves in "auto" mode when you turn them off. This causes unnecessary distraction while driving and because the only feedback you have is either on the main touch screen or the bottom left touch screen this is a severe safety issue.

Tesla vehicles have an automatic wiper mode that is supposed to clear the windshield, without driver intervention, when it becomes obscured due to rain, snow, or water buildup. While driving on December 19, 2023, our Model 3 was passed by a large truck, throwing a large amount of water across the windshield. When this happened, the forward visibility was completely obscured momentarily. The automatic wipers did not clear the windshield as expected. The vision was obscured until the driver was able to manually enable the wipers. Obviously, driving at highway speeds on the freeway, without being able to see forwards, even momentarily, is a safety concern. Thinking the car had a failure, we tried to arrange for a repair from Tesla service. Their response was: "This issue has been identified as a known firmware issue, to be resolved on a future firmware release. For now, we recommend using the manual wipers as needed when auto wipers are not detecting rain. When a fix is available it will be sent to your vehicle automatically over the air. Unless you had any other questions, I will go ahead and close out this service request. Thanks!" Looking through Tesla owner forums, this appears to be a much discussed issue for the last 4-5 years. Many owners are having issues with functionality of the automatic wipers. We don't have any photos of the incident, but I recreated a similar situation in a local touchless car wash. With the car being completely deluged in water and soap, the automatic wipers never came on. The included pictures show the touchscreen with the Auto wiper mode and the windshield completely obscured, but no wiper activation. The last photo is a screenshot of part of the conversation with Tesla support about the repair request.

Currently occurring with FSD Beta firmware V.2022.27.12 but the same has occurred with previous firmware versions also. Normal operation of the vehicle with the ADAS engaged puts the windshield wipers into AUTO mode. At times the windshield wipers are activated when the windshield is dry. It isn't raining or misting and there's nothing on the surface of the windshield at the location of the front-facing cameras. "No rain" occurrences seem to correlate with times when visibility ahead has low contrast and there are no highlights and shadows to sharply define the scene, (ie, a little "muddy"). Observed when it is overcast but not raining, around sunrise when the sun is low in the sky and the light levels ahead are relatively low and headlights aren't helping illuminate the road ahead, and at times there are high-contrast light and shadows immediately ahead but farther down the road there is mist or fog, creating the same low contrast lighting conditions some distance away. It is as if the ADAS is aware that the scenery is not sharply defined and is "wiping its eyes" in an attempt to gain a more sharply-defined view. Occasionally, but rarely in my experience, the windshield washer is also engaged. Having the ADAS activate the wipers at these times is not a safety hazard, per se, but it is distracting and concerning as it gives the driver the impression that perhaps the ADAS is malfunctioning. I've read in user forums reports from a fair number of FSD Beta drivers complaining that the wipers go on when the windshield is dry and the ADAS is engaged. I haven't observed the same when the ADAS is not engaged.

The automatic windshield wipers are not picking up rain - at all. Living in a raining area, it caused me to no have clear visibility and on the Tesla you have to manually change the mode on the screen, which causes you to take your eyes off the road. Tesla has known about this but not issued a warning (See screenshot from tesla service agent). Luckily an accident didnt occur but this is an overall safety issue.

Spontaneous shattering of side window, rear driver's side. Car was parked in driveway at the time.

The automatic windshield wipers came on and would not shut off. The car was clean, the day was sunny, and the camera lenses were free of dust or anything else that could cover them. While driving along, the wipers started and would not shut off. I went into the main monitor/screen that has the wiper settings but I was not able to activate the wiper/off button, so the wipers kept working. Pressing on that button would not activate it. I was in autopilot at the time, i.e., cruise control + lane keep assistance. I have FSD/full self driving, but have never used it since it is still in beta testing. I’m using Tesla software # 2023.7.10 I checked the various Tesla websites, and you can turn off the wipers only if you disable the ADAS features. After I turned off the ADAS, I was able to activate the wiper/off button. But this is a terrible situation, the ADAS needs to be activated, but if I activate, it wipers will begin working whenever they feel like it, regardless of the weather outside. This is clearly a software problem with the Tesla ADASN needs to be corrected. I don’t want to be driving along with auto pilot on, and then the wipers will simply turn on. Any help you could provide would be greatly appreciated to correct this dangerous situation. There are countless hundreds of complaints like this on the various Tesla websites about spontaneously functioning wipers when the weather is bright and sunny.

Windshield wipers routinely start "auto-wiping", even while turned off. I've reported this to Tesla many times and nothing is done. Plenty of evidence online that others have this same problem. I live in Phoenix, Arizona so when I say my windshield is dry, I mean it's DRY. Leaving out how distracting it is to have your wipers refusing to quit wiping, it's also wearing out the wiper blades so they're not efficient when actually needed. I've already replaced them once a year ago with, maybe 10,000 miles on vehicle.

Tesla model 3 has side repeater cameras that work as blind spot monitor cameras and provide visuals for safe lane changes. However, my model 3 suffers from a manufacturing defect in the camera assembly which causes the visuals to wash out at night due to light bleed from the turn signal. This caused an unsafe condition where i almost ran into a car in my blindspot being unable to see them on the camera visual. I raised the issue with service and they do not consider it a manufacturing defect. The defect however has been confirmed by independent researchers like here https://www.youtube.com/watch?v=_BUPsjguqdY

My front windshield has chipped and then cracked twice in about 6 months. I heard a pebble hit the windshield the first time, but it sounded very small and I did not expect it to chip/crack. The second time I didn’t even hear anything hit it. My friend has the same vehicle and her back windshield cracked unexpectedly and another friend’s cracked when she hit a bug that was on the windshield with her hand.

LIGHT SOURCES SUCH AS TAIL LIGHTS OF OTHER VEHICLES, TRAFFIC LIGHTS, AND LIT SIGNS, ALL HAVE AN ARTIFACT EFFECT - VIEW OF THE LIGHT SOURCE HAS A DOUBLE THAT EXISTS RIGHT ABOVE THE ORIGINAL SOURCE WITH A SLIGHTLY DIMMER BRIGHTNESS WHEN VIEWED THROUGH THE WINDSHIELD. THIS IS NOT AN EFFECT CAUSED BY POOR EYESIGHT, THINGS LOOK NORMAL WHEN VIEWED DIRECTLY THROUGH AN OPEN WINDOW. THE EFFECT CAN BE REPRODUCED AT ANY TIME, BUT IT IS MOST NOTICEABLE AT NIGHT WHEN THE VIEW OF THE ARTIFACT IS IN HIGH CONTRAST TO DARK BACKGROUNDS. THIS EFFECT IS MOST NOTICEABLE ON LED LIGHT SOURCES, SUCH AS LED TAIL LIGHTS. THIS EFFECT IS PRODUCED REGARDLESS OF THE STATE OF THE VEHICLE - OCCURS WHEN THE VEHICLE IS STATIONARY OR IN MOTION. THIS IS A SAFETY CONCERN AS DOUBLE VISION - SEEING ARTIFACTS ON LIGHT SOURCES THROUGH THE WINDSHIELD CAN CAUSE EXCESSIVE STRAIN ON DRIVERS' EYES, AND CAN BE AN UNWELCOME DISTRACTION TO THE DRIVER. THIS CAN ALSO POTENTIALLY CAUSE CONFUSION IN THE DRIVER WHERE THE LOCATION OF A LIT OBJECT MAY BE MISJUDGED BY THE DRIVER WHO SEES ARTIFACTS ON THOSE LIGHT SOURCES.