You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
Hi!
Same vibration with Range Mode OFF here since 2.5.21. First time it happened I thought one motor was "about to stall", like it can happen with ICE+manual transmission.
No problem at all with Range Mode ON.
Christian
I noticed this happening yesterday backing into the garage. Specifically, it happened at around 3-4 mph IN REVERSE while ACCELERATING.Same here. Also a 70D, and also quite clearly from the front. Started with last update.
Just tried it with and without range mode... Prior to this, my understanding was that range mode didn't change anything drivetrane related, however after being able to replicate it 100% of the time without range mode, I tried it with range mode on and was unable to replicate the issue.
Same here. Also a 70D, and also quite clearly from the front. Started with last update.
New 85D owner here... took delivery two weeks ago. Just started noticing the shudder in the rear end at 4mph after I took the .36 update two days ago. It's repeatable 100% of the time, and I'm in full agreement with every other poster here... same issue exactly.
I might try driving home today with range mode on, to see if that makes a difference.
Getting nervous about our weekend road trip now!
Happens every time I coast to a stop at about 4mph. Lasts a second or so and stops below 3mph. Range Mode is off. I've experienced this a few times in the past, before the last update, but couldn't duplicate on demand. Now it's very consistent, but requires coasting to a stop at least from some speed, maybe 20-30mph.
That fits the symptoms as far as I can see. While it might not be the ideal situation for the motors, compared to what they put up with on a daily basis, this is nothing to be concerned about in my opinion - simply annoying and a little disconcerting.UPDATE (after technician visit just now)...
The shudder is indeed confirmed as a known bug dealing with the front and rear motors being slightly out of sync.
He confirmed to me that Tesla software engineers are aware of the problem and are currently working on the issue.
I'm just relieved to know it's not a hardware issue of any sort!
I was able to repeat this vibration at least 10 consecutive tests yesterday to make sure what I observed was a real. I had the radio turned off so I could hear the vibration as well as feel it. The regenerative braking setting was on "Standard." I have not tested it on "Low." During the test, I did not apply the brake in order to feel the vibration. I also turned off "Lane departure" to ruled it out. This vibration is much more subtle than the "Lane departure" vibration, which can be felt during highway speed. It seems to occur right at the end of regenerative braking during the meter transition from green to orange. It seems to be coming from the front of the car.
I have not contacted service yet.
My hypothesis: Vibration damper of front motor is seated improperly.
85D coil - March 2015 with 12k miles
I just talked to Chicago service and I'll post what they told me here:
They sited the latest firmware change, and they think it may be one of the new features they added to dry the braking system off during wet periods. Now it seems to be enabling even when it is not wet out, and now everyone notices it. I think he called it brake scrubbing or something else.
I've been added to a 10 car call list. Their technicians are looking at someone else's car that is coming in for service on something unrelated so they can test the shudder issue without bringing everyone else in. They will then call the people on the call list with their findings. They said it is only happening with the "D"'s, and that Tesla as a whole is aware of the issue, and it should be fixed in the next firmware update.
If it truly is the "brake scrubbing" he sited, this shouldn't be a safety issue at all, but just a slight annoyance until they update the firmware.
I have an 85D and have been trying to replicate this but I haven't been able to feel it. I've tried range mode on and off. I've driven many miles since the software update and haven't noticed the problem.Recap of what's known:
1. Only affected vehicles are non-P, dual motor variants: 70D, 85D (and presumably 90D)
2. Range mode seems to mitigate the shudder
3. Tesla is more than aware of this.