Motor Fault Issue caused by cycling sound when R1 "woke up"

[Z-RO]

So try to not make this too long, but I have not specifically found this issue in the forums (at least not that my searches yielded).

First off, have a 23 R1S Dual Motor, very minor issues only so far (key fob battery drain, and update connectivity/or whatnot issue) all of which were resolved very well by Rivian Service Team (mobile and over phone).

Wednesday, when I was leaving work, my R1S had been sitting for 8 hrs, as I walked up to door it unlocked as normal and started to wake up from sleep mode. As I was getting into the door I heard a clicking/clunking sound (more on this in a sec) but didnt necessarily think it was odd right off the bat because I think we all know it can be normal for R1s to click, etc when waking up. In hindsight and even as I was fully in the seat I had a brief thought, that this sounds louder than normal and sounds like something is pulsing, trying to unlock. I say briefly, because then the dash lit up like a christmas tree with motor fault warning, warning that all wheel drive was disabled and I was limited to limp/turtle mode. I contacted Rivian assistant and it was initially helpful, it helped me provide a diagnostic tag and instructed me to do a vehicle restart. Having never done a vehicle restart (dumb on me for not looking this up myself in manual) it didnt provide the right steps/buttons to hit to restart and whatever I was doing was in fact was nothing (I think the assistant was stuck in a loop and wasnt actually progressing correctly to next step, which Im sure is an AI issue). So I decided, I would drive home (also I recommend not driving in limp mode if you can avoid it, woah was that an experience) and contact Rivian Advisor for support there.
Once I got home and advisor helped me get an actual Vehicle Reset complete, which did clear faults/codes, he stayed on me with me, over the phone, as I drove it around to confirm no change in performance (so thanks to Colin at Rivian for your support!). Cancelled my service appt and no issues since (fingers crossed).

My question then to the forum, anyone have similar issues to this. I think the sound had to be either the parking brake (which I have seen issues posted about parking brake not releasing, but not specifically cycling un-necessarily) or could it be the disconnect for rear motor? Both are in all intents and purposes clutches (I think?), and honestly thats what it sounded like to me. Almost like a solenoid cycling/engaging and disengaging a clutch pack.

Thanks everyone, keep adventuring!

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[beatle]

Still on your original 12v? When mine went, it threw a bunch of unrelated errors that disappeared when the 12v was replaced.

 

[Z-RO]

Still on your original 12v? When mine went, it threw a bunch of unrelated errors that disappeared when the 12v was replaced.

No, the original 12V was replaced earlier this year.

 

[mudito]

Do you happen to have a Comma.ai installed by any chance?

 

[sherold]

So try to not make this too long, but I have not specifically found this issue in the forums (at least not that my searches yielded).

First off, have a 23 R1S Dual Motor, very minor issues only so far (key fob battery drain, and update connectivity/or whatnot issue) all of which were resolved very well by Rivian Service Team (mobile and over phone).

Wednesday, when I was leaving work, my R1S had been sitting for 8 hrs, as I walked up to door it unlocked as normal and started to wake up from sleep mode. As I was getting into the door I heard a clicking/clunking sound (more on this in a sec) but didnt necessarily think it was odd right off the bat because I think we all know it can be normal for R1s to click, etc when waking up. In hindsight and even as I was fully in the seat I had a brief thought, that this sounds louder than normal and sounds like something is pulsing, trying to unlock. I say briefly, because then the dash lit up like a christmas tree with motor fault warning, warning that all wheel drive was disabled and I was limited to limp/turtle mode. I contacted Rivian assistant and it was initially helpful, it helped me provide a diagnostic tag and instructed me to do a vehicle restart. Having never done a vehicle restart (dumb on me for not looking this up myself in manual) it didnt provide the right steps/buttons to hit to restart and whatever I was doing was in fact was nothing (I think the assistant was stuck in a loop and wasnt actually progressing correctly to next step, which Im sure is an AI issue). So I decided, I would drive home (also I recommend not driving in limp mode if you can avoid it, woah was that an experience) and contact Rivian Advisor for support there.
Once I got home and advisor helped me get an actual Vehicle Reset complete, which did clear faults/codes, he stayed on me with me, over the phone, as I drove it around to confirm no change in performance (so thanks to Colin at Rivian for your support!). Cancelled my service appt and no issues since (fingers crossed).

My question then to the forum, anyone have similar issues to this. I think the sound had to be either the parking brake (which I have seen issues posted about parking brake not releasing, but not specifically cycling un-necessarily) or could it be the disconnect for rear motor? Both are in all intents and purposes clutches (I think?), and honestly thats what it sounded like to me. Almost like a solenoid cycling/engaging and disengaging a clutch pack.

Thanks everyone, keep adventuring!

Similar experience for me last year, minus the loud clicking sounds/motor fault warning.

Short story: Drove vehicle approximately 15 miles from home, parked, then returned 1.5 hours later. "Started" the truck, had the slew of trouble lights including limp mode. I immediately performed a vehicle reset, and all was cleared. My thoughts were a misreading from sensor or a hang-up in the software/controls cycling gave a false error. I have never had the error since .

 

[Z-RO]

Do you happen to have a Comma.ai installed by any chance?

I do not.

 

[Z-RO]

Similar experience for me last year, minus the loud clicking sounds/motor fault warning.

Short story: Drove vehicle approximately 15 miles from home, parked, then returned 1.5 hours later. "Started" the truck, had the slew of trouble lights including limp mode. I immediately performed a vehicle reset, and all was cleared. My thoughts were a misreading from sensor or a hang-up in the software/controls cycling gave a false error. I have never had the error since .

Well I will take this as a positive. My concern was a motor fault that happened while vehicle was not in motion, cleared by reset is hopefully just like you say some sensor fault and that as long as it doesnt return, everything I expect should be ok.

 

[Nano]

I’m trying to diagnose a mystery random clicking sound and mine is at the SC. I have never had any error lights but did the clicking sound like this? I’m trying to help the SC diagnose the issue.

 

[Z-RO]

I’m trying to diagnose a mystery random clicking sound and mine is at the SC. I have never had any error lights but did the clicking sound like this? I’m trying to help the SC diagnose the issue.

No, I saw your thread on this the other day and thought you might have experienced what I had but after listening to video and reading your comments I dont think its the same. My issue came more from this marked blue area on the vehicle and sounded more like something pneumatic/hydraulic cycling (if that makes sense). Where as yours sounds more electronic control tripping from the red arrow area. Maybe this is wrong, but I had a motor fault show up on screen afterwards that was cleared with a full vehicle reset and has not come back since in any way.

 

[Nano]

Ok thanks. The mystery continues

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