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2024 Rivian R1S Dual-Motor — shudder at light throttle around 40 mph

CruiseMom36Community StarterAug 18, 20262024 Rivian R1S Dual-MotorLos Angeles
2024 Rivian R1S Dual-Motor, about 1,200 miles. I get a light shudder at steady throttle around 35–45 mph. If I accelerate harder or lift off, it goes away. Trying to figure out whether this sounds more like torque-converter behavior, engine misfire, or tires. Any data points from owners would help.
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3 replies

EcoCollector89Community StarterCommunity StarterAug 19, 2026permalink
Start with the test that can prove you wrong. If a shop can't duplicate it on the 2024 Rivian R1S, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. This is from a 2024 Rivian R1S in Los Angeles with 1,200 miles. Parts cannon is a personality type I try to avoid. Your commute and mine probably aren't the same, but the test still applies. Only after sitting overnight so far.
TurboFan87Community StarterCommunity StarterAug 19, 2026permalink
If it were in my driveway, capture voltage while the 2024 Rivian R1S is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. Happy to compare notes if your setup is different. Cold start is when I can actually reproduce it.
EcoCollector89Community StarterCommunity StarterAug 19, 2026permalink
Ask what changed right before it started. Capture voltage while the 2024 Rivian R1S is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. The universe charges extra for guessing. If it repeats twice more I'll book time.
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