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Auto wipers activating when sun shining directly on windshield

Kokocabana

Member
Mar 21, 2021
19
6
Vancouver
I always leave my wipers on auto and this issue started ocurring in the past few weeks. I notice that it tends to occur around sunset when I am driving home from work and the sun is directly in front of me. I guess the front windshield cameras think it is blocked by water rather than the sun so it is turning it on, and I am not getting the normal notification that the cameras are blinded/obstructed. Has anyone else experienced this?
 

Mrcarcrazy

Another internet expert @ no charge
May 22, 2019
881
901
South Padre Island, Tx
New one for me, I’d check the area of the windshield where the cameras are for hard water stains. (This is a shot in the dark, but my windshield and roof had some serious hard water stains when it was delivered to me).
 

tr1sk

Member
Apr 7, 2019
47
23
SoCal
I have had a very few instances (I'm guessing less than 5 times in over 2 years of driving) where the auto wipers get activated for seemingly no reason. Usually swipe once or twice and then stop. I'm sure it is related to your issue, where light hitting the camera housing in just the right way makes the system thinks it sees water droplets. Just another symptom of not having a normal rain sensor.

In the list of Tesla grievances, this ranks very low down the list for me though.
 

Peter 224

Member
May 9, 2021
267
194
Salisbury
I find that driving into a low sun and with overhanging trees, so there is alternating bright sun and shadow, sets the wipers off.
Otherwise not a problem, or no different to the previous Mercedes.
 
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Ren.OG

Member
Jul 13, 2021
97
47
San Diego
Happened a few times... not sure if it was blocked by the sun but it was a clear sunny day.
made me think someone spit on my windshield but it was still so clean it just didnt make sense.

i've turned off auto wipers and the problem is gone.
now if i can just keep my fingers from hitting the wiper button while blinking, that'd be great.
 

JohnNick72

Member
Feb 29, 2020
32
20
Spring, TX
I’ve had this before, but not often. Not exactly sure what combination of clean/dirty window and sun/shade/reflection triggers it.

It happens more often in my wife’s ‘20 Audi Q7.
 

euro.r

Member
Jul 9, 2021
18
15
Hawaii
Lately we've been having rain while the sun is shining. Sometimes the auto wiper doesn't activate when I need it to. Happens quite a bit here.
 

CapinWinky

Member
Jun 17, 2020
72
63
Richmond, VA
My drive to work on a very clear and sunny morning today turned on my wipers on full blast. I had to turn off cruise control to be able to turn off the wipers. It was crazy! I have to assume driving into the sunrise (already high enough in the sky that I could put the visor up) is what was doing it.
 

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