Breakdowns & Roadside ProblemsQuestionCommunity Starter

2023 Rivian R1T — car died once at a light and restarted immediately

ColdStartLearner641Community StarterAug 13, 20262023 Rivian R1T Quad-MotorNew York
2023 Rivian R1T Quad-Motor, about 46,500 miles. The engine shut off at a stop once, restarted right away, and has been normal since. No warning stayed on. What data or checks would you prioritize before trusting it on a long trip?
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4 replies

TrackDriver489Community StarterCommunity StarterAug 13, 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. I'd do that before spending real money. That's the whole play. I'd sleep better after that step, even if it finds nothing. I keep a notes app thread for this now.
BoostGuy18Community StarterCommunity StarterAug 13, 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. Just my two cents from doing this recently. Make the next action something you can finish this week. I keep a notes app thread for this now.
LongMilesCamper362Community StarterCommunity StarterAug 13, 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. That's where I'd start. On “car died once at a light and,” that was the fork that mattered for me. A shop burned me once by skipping that step. If your situation is the opposite, ignore me. This is the version I'd tell a friend.
LongMilesCamper362Community StarterCommunity StarterAug 14, 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. A shop burned me once by skipping that step. If it repeats twice more I'll book time.
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