Dual Motor All Purpose not smooth now

[PaythePiper]

Gen 2 DM here with the dreaded clunk. Noticed it a lot on my road trip to San Diego a couple weeks ago. Really hope they can just fix this via one of the monthly updates.

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[HaveBlue]

I wonder how negligible the range figures are with stability reduced.... Which is the other way to lock in the rear motors.

About 10%

 

[Jonger1150]

Gen 2 DM here with the dreaded clunk. Noticed it a lot on my road trip to San Diego a couple weeks ago. Really hope they can just fix this via one of the monthly updates.

I'm actually surprised this hasn't been fixed yet. I'm sure quite a bit of time and money is being wasted by the service center due to this.

 

[mpshizzle]

I'm actually surprised this hasn't been fixed yet. I'm sure quite a bit of time and money is being wasted by the service center due to this.

For me it went away with 2025.06 - odd that's not the case across the board

 

[Tarponman85]

Drive it with stability in reduced mode. That’s how I have mine. Every time I get in I set to reduced.

 

[PaythePiper]

I'm actually surprised this hasn't been fixed yet. I'm sure quite a bit of time and money is being wasted by the service center due to this.

Really frustrating that a service appt isn’t available until June lol

 

[mpshizzle]

Not directly related this, but:

 

[Mellowyellow]

For me, 2024.51 broke it, 2025.06 improved it, and I just did a hard reset (left steering wheel button and hazards) and it seems to have fixed itself.

 

[iamnid]

Evidently, Rivian is aware of this issue and is working to fix it.

 

[Jonger1150]

Thank god

 

[Wokka1827]

Mine is in the shop for this along with some other items that have developed since the last time, so hopefully they can do some resets etc. and I can be a happy person again will update upon getting it back!

 

[vigorousRival]

I just got my 2nd gen R1S dual max back from service and had the clunk on my list of issues. They have a generic “rear drive unit assembly other labor (1 hr)” item on the invoice and when asked they were very vague about what if anything was done to address it. They also have an “engineering investigation ENIV-281” with no other information. This feels like they are deliberately being quiet about what ever this issue is. I haven’t tested extensively yet so can’t really comment on if it’s better or not. Will report back later today after more testing.

 

[CANCERDOC]

Evidently, Rivian is aware of this issue and is working to fix it.

The “fix” is Wassim saying they will soon offer a AWD locked option for dual motors. It doesn’t actually fix the rough rear axle engagement. It just prevents the rear motor from turning off, thereby making it smoother but with the downside of a slight range reduction.

 

[Mellowyellow]

What the heck

 

[vigorousRival]

Tested a bit more and it feels smoother, but still has a lag when I step on it. It seems like it’s just the nature of the clutch system where it takes a bit to engage to rear motor. So there isn’t really a fix, as @CANCERDOC and Kyle “tldw ” have said. I for one would appreciate a dedicated setting that keeps both motors engaged without having to turn off stability or change ride height.

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