2024 Rivian R1S Dual-Motor — need advice: Clunk over small sharp bumps but not big ones

It did motor — need advice: clunk over small twice this week, both times after sitting. No change in mileage feel. I refuse to clear codes until someone else sees them.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2024 Rivian R1S — site sharing and pack temp change the curve a lot. Then you'll know the next fork. Not gospel, but it saved me a headache. I've seen both outcomes, which is why I'd test instead of assume. Parking it somewhere I can hear it better next time.

I'd treat 12V warnings as a no-ignore. On the 2024 Rivian R1S, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. That's where I'd start. On “motor — need advice: clunk over small,” that was the fork that mattered for me. This is from a 2024 Rivian R1S in Boston / New England. Do that first. Next check is the cheap one I can do in a driveway.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2024 Rivian R1S — site sharing and pack temp change the curve a lot. I'd do that before spending real money. This is from a 2024 Rivian R1S in Boston / New England. That's the whole play. Checking again after work.

Don't clear the alert just to make the screen pretty. Leave the alerts on the 2024 Rivian R1S so service can see what you saw. That's where I'd start. I'd want that in writing, not as a promise. I'd sleep better after that step, even if it finds nothing. Next check is the cheap one I can do in a driveway.

I'd treat 12V warnings as a no-ignore. On the 2024 Rivian R1S, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. Then you'll know the next fork. On “motor — need advice: clunk over small,” that was the fork that mattered for me. If they can't show the line item, I assume it's hiding. I'd rather pay for diagnosis than a second guess-repair.

Don't clear the alert just to make the screen pretty. Leave the alerts on the 2024 Rivian R1S so service can see what you saw. That's where I'd start. Take it or leave it — that's what I'd do. If that fails I'll eat the diagnostic fee.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2024 Rivian R1S — site sharing and pack temp change the curve a lot. Then you'll know the next fork. Do that first. Cold start is when I can actually reproduce it.

Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2024 Rivian R1S charge sessions. Then you'll know the next fork. Just my two cents from doing this recently. Make the next action something you can finish this week. If that fails I'll eat the diagnostic fee.

It did motor — need advice: clunk over small twice this week, both times after sitting. No change in mileage feel. Happens in gear, not in park, for what that's worth.

I went back under the 2024 Rivian R1S and it only happens after a heat soak, not on a cold start. Not interested in a five-hour wait for a shrug.

Don't clear the alert just to make the screen pretty. Leave the alerts on the 2024 Rivian R1S so service can see what you saw. I'd do that before spending real money. That's the whole play. If this is nothing, great. I want that in data.

I went back under the 2024 Rivian R1S and it only happens after a heat soak, not on a cold start. I'll update if anything new shows up.

Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2024 Rivian R1S charge sessions. Then you'll know the next fork. Verbal 'we'll take care of it' is not a plan. Heat soak after errands is the other window.

I'd treat 12V warnings as a no-ignore. On the 2024 Rivian R1S, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. I'd do that before spending real money. On “motor — need advice: clunk over small,” that was the fork that mattered for me. This is from a 2024 Rivian R1S in Boston / New England. I'd want that in writing, not as a promise. Might be overthinking it, but I'd rather overthink than overspend.

Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2024 Rivian R1S charge sessions. Then you'll know the next fork. Run the total, not the monthly, before you commit. That's coming from doing this as an owner, not a shop. If it repeats twice more I'll book time.

I'd treat 12V warnings as a no-ignore. On the 2024 Rivian R1S, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. I'd do that before spending real money. On “motor — need advice: clunk over small,” that was the fork that mattered for me. Stop there until you know. Happens in gear, not in park, for what that's worth.

OP update: scanned the 2024 Rivian R1S again and still only have the one pending code, no new lights. I'm in no rush to be a hero on it.

It did motor — need advice: clunk over small twice this week, both times after sitting. No change in mileage feel. If it repeats twice more I'll book time.

I'd treat 12V warnings as a no-ignore. On the 2024 Rivian R1S, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. Then you'll know the next fork. On “motor — need advice: clunk over small,” that was the fork that mattered for me. Not gospel, but it saved me a headache. No warning lights, which is why I'm documenting it.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2024 Rivian R1S — site sharing and pack temp change the curve a lot. That's where I'd start. This is from a 2024 Rivian R1S in Boston / New England. Do that first. Happens in gear, not in park, for what that's worth.

Don't clear the alert just to make the screen pretty. Leave the alerts on the 2024 Rivian R1S so service can see what you saw. Then you'll know the next fork. If they can't show the line item, I assume it's hiding. I'm in no rush to be a hero on it.

Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2024 Rivian R1S charge sessions. That's where I'd start. A shop burned me once by skipping that step. I'll poke at it this weekend.

Don't clear the alert just to make the screen pretty. Leave the alerts on the 2024 Rivian R1S so service can see what you saw. Then you'll know the next fork. This is from a 2024 Rivian R1S in Boston / New England. That's the whole play. I'd sleep better after that step, even if it finds nothing. Next check is the cheap one I can do in a driveway.

I'd treat 12V warnings as a no-ignore. On the 2024 Rivian R1S, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. I'd do that before spending real money. On “motor — need advice: clunk over small,” that was the fork that mattered for me. This is from a 2024 Rivian R1S in Boston / New England. Stop there until you know. Next check is the cheap one I can do in a driveway.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2024 Rivian R1S — site sharing and pack temp change the curve a lot. Then you'll know the next fork. Take it or leave it — that's what I'd do. Worth doing even if the car feels fine right now. I'm in no rush to be a hero on it.

Checked the easy stuff on the 2024 Rivian R1S and found one clue worth chasing before I book a shop. Wrote this up on my lunch break.