Luxus
Well-Known Member
- First Name
- Walter
- Joined
- Jan 5, 2026
- Threads
- 12
- Messages
- 168
- Reaction score
- 287
- Location
- Niles, IL.
- Vehicles
- 2026 Rivian R1T tri; 1973 Buick Century Gran Sport; 1974 Buick Lesabre conv
- Occupation
- Mechanical Engineer
- Thread starter
- #1
I picked up my new R1T last weekend. It comes with 2 months free Autonomy+. Yesterday I had an opportunity to do a short trip, so I took advantage to try it out. As most of you know, it's a very fancy cruise control. You activate it by pulling the right stalk towards you twice. It will then maintain speed and stay in the lane it's in without the driver having to hold the wheel. It will also change lanes for you when you activate the turn signal in the direction you want to change to.
Overall, it works as described. It stays in the lane by itself. You can adjust the speed by using the right thumbwheel on the steering wheel. It will adapt its speed to a car in front. It will change lanes when you ask it to. It will also not change lanes if it thinks it is not safe (like a car in the next lane is too close or going too fast).
I did have some trouble getting it to change lanes at first, turns out I wasn't pushing the turn signal stalk all the way down (or up). So that was a me issue. But one disturbing thing happened twice. When driving straight on a multilane highway, I would be passing a tractor trailer in the next lane to the right going the same direction. When my truck got to about the midpoint of the other truck, it suddenly disengaged the throttle and I had to intervene to get back up to speed. Once I finished passing the truck the cruise went back to normal without me doing anything. I couldn't really tell if anything unusual happed to trigger the shutoff. Everything seemed fine outside of the cruise momentarily shutting off.
Personally, I don't do enough highway driving to justify the cost. But it would be nice for someone who is on the highway all the time.
Overall, it works as described. It stays in the lane by itself. You can adjust the speed by using the right thumbwheel on the steering wheel. It will adapt its speed to a car in front. It will change lanes when you ask it to. It will also not change lanes if it thinks it is not safe (like a car in the next lane is too close or going too fast).
I did have some trouble getting it to change lanes at first, turns out I wasn't pushing the turn signal stalk all the way down (or up). So that was a me issue. But one disturbing thing happened twice. When driving straight on a multilane highway, I would be passing a tractor trailer in the next lane to the right going the same direction. When my truck got to about the midpoint of the other truck, it suddenly disengaged the throttle and I had to intervene to get back up to speed. Once I finished passing the truck the cruise went back to normal without me doing anything. I couldn't really tell if anything unusual happed to trigger the shutoff. Everything seemed fine outside of the cruise momentarily shutting off.
Personally, I don't do enough highway driving to justify the cost. But it would be nice for someone who is on the highway all the time.
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