Warranty, TSBs & Dealer ServiceDiscussionCommunity Starter

2023 Rivian R1T — dealer cannot reproduce an intermittent warning — anyone dealt with this recently?

RustBeltDIYer959Community StarterAug 8, 20262023 Rivian R1T Quad-MotorNationwide
I have brought the car in twice for the same intermittent warning and both visits ended with could-not-reproduce. I have video and timestamps. What is the best way to build a useful paper trail? If I figure it out I will update the thread.
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12 replies

TowGarage486Community StarterCommunity StarterAug 8, 2026permalink
Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2023 Rivian R1T — site sharing and pack temp change the curve a lot. I'd do that before spending real money. No need to make it theatrical. Heat soak after errands is the other window.
SunBeltCommuter727Community StarterCommunity StarterAug 8, 2026permalink
Don't clear the alert just to make the screen pretty. Leave the alerts on the 2023 Rivian R1T so service can see what you saw. Then you'll know the next fork. This is from a 2023 Rivian R1T in Nationwide. If they can't show the line item, I assume it's hiding. Not trying to scare you — just skip the expensive first guess. If it repeats twice more I'll book time.
ColdStartFan202Community StarterCommunity StarterAug 8, 2026permalink
Don't clear the alert just to make the screen pretty. Leave the alerts on the 2023 Rivian R1T so service can see what you saw. Then you'll know the next fork. A shop burned me once by skipping that step. Heat soak after errands is the other window.
NoMarkupGuy509Community StarterCommunity StarterAug 9, 2026permalink
I'd push back a little: Try a second charger before blaming the 2023 Rivian R1T — site sharing and pack temp change the curve a lot. Then you'll know the next fork. This is from a 2023 Rivian R1T in Nationwide. Time, temperature, and whether it's in gear are the notes that actually help a shop. Only after sitting overnight so far.
RustBeltDIYer959Community StarterCommunity StarterAug 8, 2026permalink
Checked the easy stuff on the 2023 Rivian R1T and found one clue worth chasing before I book a shop. I'd rather pay for diagnosis than a second guess-repair.
NewCarGalCommunity StarterCommunity StarterAug 8, 2026permalink
Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2023 Rivian R1T charge sessions. That's where I'd start. Stop there until you know. Might be overthinking it, but I'd rather overthink than overspend.
GarageSeller43Community StarterCommunity StarterAug 9, 2026permalink
Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2023 Rivian R1T charge sessions. Then you'll know the next fork. Not gospel, but it saved me a headache. No warning lights, which is why I'm documenting it.
NewCarGalCommunity StarterCommunity StarterAug 9, 2026permalink
I hear you, though I'd still want a second check. On the 2023 Rivian R1T, 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 “dealer cannot reproduce an intermittent warning —,” that was the fork that mattered for me. Stop there until you know. No warning lights, which is why I'm documenting it.
MarketGal186Community StarterCommunity StarterAug 9, 2026permalink
Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2023 Rivian R1T — site sharing and pack temp change the curve a lot. Then you'll know the next fork. Write the result down so the next test isn't a repeat of the last one. Heat soak after errands is the other window.
RustBeltDIYer959Community StarterCommunity StarterAug 9, 2026permalink
Cleared nothing. I want service to see the alert on the 2023 Rivian R1T first. If this is nothing, great. I want that in data.
RustBeltDIYer959Community StarterCommunity StarterAug 10, 2026permalink
It did dealer cannot reproduce an intermittent warning — twice this week, both times after sitting. No change in mileage feel. Video is ugly but it shows the hesitation.
TowGarage486Community StarterCommunity StarterAug 9, 2026permalink
I'd treat 12V warnings as a no-ignore. On the 2023 Rivian R1T, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. Then you'll know the next fork. On “dealer cannot reproduce an intermittent warning —,” that was the fork that mattered for me. This is from a 2023 Rivian R1T in Nationwide. That's the sequence I'd use. If that fails I'll eat the diagnostic fee.
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