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Software Update on 6/15/2021 Wipers come on when cruise control activated.

Live Wire

New Member
Jun 17, 2021
3
0
Dartmouth, MA
I picked up my Model 3 LR on 6/8/2021. I've had it for 9 days. After the latest software update on June 15th I think, the wipers turn on in intermittent mode when I activate the cruise control ( I didn't even try auto-pilot yet since the update.) I just rebooted the operating system, hopefully that will solve the problem. Anyone else experience this?
 

MP3Mike

Well-Known Member
Feb 1, 2016
16,831
40,341
Oregon
TACC = Traffic Aware Cruise Control.

I think the wipers are required to be in auto mode any time you are using TACC or AutoSteer. You might check and make sure that the windshield is clear around the front facing cameras. (Center top of the windshield)
 

smogne41

Member
Jun 13, 2019
191
373
Pennsylvania
TACC = autopilot but where you do the steering (more or less). Anything that AP needs for vision only cars like yours (like currently auto high beams and auto wipers) TACC needs. Yes, that means you probably should also not use cruise control after dark if you want to avoid being a jerk to other drivers because the auto high beams work about as well as the auto wipers.
 

Twiglett

Single pedal driver
Oct 3, 2014
3,134
3,288
Austin
not trying to be mean or a PITA etc - but its probably worth giving the manual a reading some parts of the manual for your car.
it will explain a great deal of this stuff to you and will really help you out
You can access the manual from in the car, but I find it easier to read on my computer where I can download it.
Logging into your account on your computer, you'll find the manual when you choose your car from the list, look in documents.
Hope you enjoy your car and welcome to Tesla family :cool:
 

Jyoung1418

New Member
Jul 9, 2021
2
0
California
I just had the same issue. I checked the RLS (Rain Light Sensor) and it was clear of water. I tried a reset holding both buttons down on the steering wheel and it did not work.
 

tuktuk

New Member
Jul 19, 2021
4
0
california
Same here. Got my M3 3 weeks ago, and the windshield wipers come on in cruise every time. Also, when cruise is on, i am not able to turn off the ac fan.
 

KArnold

Member
May 21, 2017
750
799
Columbus OH
From the manual:

Note: for vehicles manufactured after approximately April 27, 2021, Autopilot requires wipers to be set to AUTO. This setting is made automatically and you cannot not change it.

That's understandable with Vision-only. But the OP implies the wipers are coming on even when it's not raining. Do the wipers auto-engage automatically at other times when it's not raining? Or only when Autopilot is engaged?
 

tuktuk

New Member
Jul 19, 2021
4
0
california
From the manual:



That's understandable with Vision-only. But the OP implies the wipers are coming on even when it's not raining. Do the wipers auto-engage automatically at other times when it's not raining? Or only when Autopilot is engaged?
No rain here a single day since I got my M3 and wipers come on every time AP is engaged! Whats difference is the speed of the wipers, sometimes slow and sometimes fast....
 

stujac21

New Member
May 12, 2021
3
0
Dallas, TX
I picked up my Model 3 LR on 6/8/2021. I've had it for 9 days. After the latest software update on June 15th I think, the wipers turn on in intermittent mode when I activate the cruise control ( I didn't even try auto-pilot yet since the update.) I just rebooted the operating system, hopefully that will solve the problem. Anyone else experience this?
Yes I had the same happen with my MYLR. I rebooted and the problem seemed to go away!
 

CapinWinky

Member
Jun 17, 2020
89
92
Richmond, VA
When driving in the morning when the sun is shining through trees in the median and the car is rapidly going through patches of sun and shade, it will activate this behavior and then it will not stop that entire drive, even if the sun goes behind a cloud or I move to a 100% sun lane. I just can't use cruise control some mornings. v2021.3.105

I do controls engineering, so I totally get it that this could trigger the sensor and I also totally understand that it needs to see for adaptive cruise control. What I don't get is why it persists after the trigger conditions are removed and why I can have normal, non-adaptive cruise control that does not use vision and does not require wipers be in auto.

I don't know if extreme following distance keeping is part of the vision only-limitations, but I have to keep my foot on the accelerator the entire time cars are around me or the car will do some extreme slow-downs until there are a dozen car lengths between me and the next car up. Like a car going faster than me changing into my lane 8 lengths up will make the Tesla brake hard enough to dip the nose and spill coffee out of my cup. I would really appreciate dumb cruise control.
 

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