R1S Steering Wheel Shake/ Vibration at 65 mph and Over

Vincent · 2025-01-10T19:33:15+00:00

A friend needed to support his son who would be running a 'very cold' marathon on Sunday while rucking a 30 pound pack. The outside temps will be around 15F-20F the whole time. The location of the race is nowhere close to any L2 chargers, but he's not worried about driving distance to or from the race - it is 50 miles away from his house. He says he will be sitting in his ruck with his laptop and watching his live track+Garmin inReach data for the duration of the race (about 4 hours). He thought about taking his Honda EB2800i gasoline powered generator, if he can use the level 1 EVSE attached to the generator and keep the truck running with full heat + power - without really consuming much of the truck's main battery? He feels it's super dorky to have a gas generator running while attached to a Rivian in the woods, just so he can stay warm, but don't know if it would work ok this way and 'preserve' the main battery so he doesn't need to worry about driving range when we wants to head home. He talked to me about it and I told him the simple answer is NO. I tested this theory the other night when I was plugged into a 5.9kW charger. To maintain the interior amenities (interior and exterior lights, radio, heater, seat heaters), it took almost all of the charge. I charged for 15 minutes, it delivered 1.6kW, and the truck consumed 1.4kW, delivering only 0.2kW to the truck battery. Told him he would be using a laptop at another 200ish watts. The little trickle charger charges at 1.4kW on a good day, 1.2kW is normal for me. You can slow the bleed, but you cant stop it. My advise to him was for him to charge it up to 100% at home, and roll the dice is what I would do.

Rivian Mom

Active Wheeler

Dec 31, 2024

So I recently had this issue and found out a little tip that was helpful and felt it would be nice to share. I was heading out of town last week and swapped the rear tire to the front on the passenger side (tread getting low, a bit more tread on the rear so wanted that for conserve mode)

Pretty bad vibration at 50mph+. It calmed down around 60 or 65mph, and gets substantially worse at 80+. My solution was going whole hog in all-purpose from a red light. That calmed the vibration down a whole lot.

I'm thinking the rear is wearing tires unevenly over time (the suspect tire came from a really "squeeky suspension side" i'm going in for in January). You move them to the front and feel the uneven tread depth. You're wearing off the difference with some "spirited" accelerations.

I'm actually getting a new set of 4 mounted before the weekend. I threw the suspect tire on a bubble level and it's definitely no longer balanced after 38k miles. Hopefully someone could find this helpful.

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