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2021+ Model S and Model S Plaid Refresh Issues Thread

Bitjockey

Plaid MSM WhCf19 MF4527 Nov 6
Jun 5, 2015
261
520
Toronto, ON, Canada
After 19 days in service, finally got my car back. The problem: most functions disabled (cruise control, steering assist, traction control, stability control, regen braking, adaptive ride control, vehicle hold, emergency braking, lane departure, cars not being visualized.

The solution: replaced a 3ft coaxial harness (ASY,HARN,FRUNK SWITCH GND, OVERLAY,MS 1731861-00-A). Found it in the EPC but it doesn't tell me much.
 
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emailforbrett

Member
Dec 22, 2020
183
525
Orlando
After 19 days in service, finally got my car back. The problem: most functions disabled (cruise control, steering assist, traction control, stability control, regen braking, adaptive ride control, vehicle hold, emergency braking, lane departure, cars not being visualized.

The solution: replaced a 3ft coaxial harness (ASY,HARN,FRUNK SWITCH GND, OVERLAY,MS 1731861-00-A). Found it in the EPC but it doesn't tell me much.
I have these same issues! My car goes in for service in two weeks. I am going to message your post to them for a heads up.
 

emailforbrett

Member
Dec 22, 2020
183
525
Orlando
5YJS*****MF441***

My regen braking works, as does brake hold. All the other stuff you report is T/U, as well as some other issues. The SC ran a diagnostic and said there is a problem with a sensor not communicating with the computer. My car also failed a firmware update to 2021.40 even though the car shows a successful update. I just sent them what you posted about the wiring harness hoping they stock it before I arrive just in case.
 

SoCalDude

Life is good!
Apr 21, 2018
350
791
Irvine, California
I am getting Adaptive Ride Control Disabled. I have 110 miles on the car. Service appointment is on December 9th.
0910691A-A29D-46DA-9E66-49B4233D6C02.jpeg
5AC86C65-86BB-43FA-B065-969B90FDA1C3.jpeg
 

WilliamG

Active Member
Apr 20, 2019
4,935
7,037
Seattle, WA
OK, so this is a major issue. Not sure what to do. Happens just about every single time my wife gets out of the car. Driving me insane. Is it time to move on from this car? It's making me insane.

Help. Please. Picture attached.
 

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jebinc

EndlessVibrating PLAID, cream/FSD; MYP, wht on wht
Supporting Member
Jun 19, 2019
8,579
12,719
Seattle area
OK, so this is a major issue. Not sure what to do. Happens just about every single time my wife gets out of the car. Driving me insane. Is it time to move on from this car? It's making me insane.

Help. Please. Picture attached.
What’s the issue description? Not sure what the problem is! 🤣
 

jamieb

Member
Oct 26, 2013
205
189
Sacramento
My Model S LR has this weird 'cooing' sound coming from the ventilation slot on the passenger side of the main screen. Sounds like a small dove caught in the system. Very soft, doesn't appear to be related to fan speed but it goes away when I turn off the ventilation system. Not terribly loud but now that my ear is tuned to it, I hear it over low road noise and low music, annoying. Not a regular rhythm, sometimes few seconds, other times goes away for a minute or two. Maybe an actuator that moves a vent back and forth? I swung by the local service center and demonstrated it to one of the service advisors I've dealt with in the past, he'd never heard this and suggested I record it which I did and have sent it to him. I'm hoping he'll pass it up the chain to Fremont, don't want to bring it in to the shop for them to tear apart the dash for random diagnostics and then have the car stuck there waiting for parts...
 
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oktane

Active Member
Oct 25, 2016
1,982
2,930
USA
OK, so this is a major issue. Not sure what to do. Happens just about every single time my wife gets out of the car. Driving me insane. Is it time to move on from this car? It's making me insane.

Help. Please. Picture attached.
She takes her seatbelt off? Don’t get it sorry bro
 

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