2022 Rivian R1T: adaptive cruise control problems

Filed Oct 29, 2026 · Transmission · GA

I was driving with items in the truck bed, including a cooler. There was wind noise, which I initially attributed to the items in the back, but it seemed to be getting louder. The truck didn't feel right. As I was traveling approximately 70 mph (with cruise control engaged), it felt like regenerative braking was occurring. There were no warnings or warning lights. I decided to exit the highway to check things out. As I slowed down, the truck decelerated much more abruptly than normal. I pulled onto the shoulder and got out. There was a burning smell that reminded me of either an electrical fire or brakes that had been rubbing. Those were the only two things that came to mind. As I attempted to drive to a nearby gas station, the truck was extremely jerky and then abruptly stopped. We had it towed to our workplace. In our parking lot, I drove under 5 mph while my wife and coworker observed. The wheels initially rotated normally for several revolutions before the right rear wheel began wobbling laterally and instantly locked. The other three wheels continued rotating, moving the truck forward while the locked wheel skidded along the pavement. When I stopped, the wheel released. We repeated this sequence multiple times with the same result. I am concerned that if the right rear wheel had locked at highway speed while the other three wheels continued moving the truck forward, I could have lost control of the vehicle. No warning lights, error messages, or alerts appeared at any point. The truck is currently at Rivian Atlanta, received October 15, 2026. Rivian's October 20 estimate (WO-000002692556), Item 1, documents rear drive unit noise and unknown fluid leaking onto underbody panels. Rivian proposes replacing the rear drive unit and draining/refilling its fluid under warranty. I do not know whether Rivian reproduced the wheel lockup. Rivian has inspected the vehicle, which remains at its Atlanta location.

Filed Apr 7, 2026 · Acceleration, Driver assistance · HI · crash · 1 injury

I was driving late night to a campsite in a very rural part of the Big Island of [XXX] , about 45 minutes from where I live. I was by myself except for my dog, in the passenger seat. I was on a country road with a 30 mph speed limit, going about 25 mph. I engaged the cruise control and it immediately went up to 40-45 mph, far faster than the limit and far faster than was safe given the wet conditions and windy road. As I tried to slow the car down, using the steering while cruise control adjustment buttons, I steered through a curve and rather than turn with the road, as I had intended, the truck slid off the road to the left, effectively hydroplaning, into two trees, at about 40 mph. The airbags deployed as the truck came to a complete halt against the two trees. The car automatically called 911 as I sat there trying to assess what had just happened, whether I was hurt, and whether my dog was hurt. I told the 911 operator that the truck had called them automatically adn that I was ok and I would call in the morning after assessing what had happened. I am waiting for the police report and also waiting for the incident report from Rivian, which has an on-board log of events. I don't know why the cruise control engaged at such a high speed, rather than at the posted speed limit, but this appears to be a known flaw with Rivian's cruise control that I was not aware of. The cruise control and software are available for inspection by the federal safety agency. There is also an active recall on this vehicle that I was aware of but had been unable to schedule for service yet b/c it required shipping the truck to [XXX] on a barge. I had only had the truck on island for a little more than a month. From previous operations I had no reason to believe that the cruise control was faulty. It is possible that the recall issue may have been a contributing factor to the crash but I don't know b/c the vehicle has not been inspected yet by Rivian. They have scheduled an adjuster to come on April 14. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF I

Filed Feb 5, 2026 · Driver assistance · CO

Initially, my instrument screen on my vehicle went black and stopped working. I had to drive roughly 10 miles home without the use of my speedometer. After replacing the AXM module, the cruise control and lane-keeping functions intermittently stop working. The vehicle was at the service center on and off for 57 days before it was returned to me without a resolution. I’m told this issue is affecting 30 vehicles in the Rivian fleet; however, they don't yet have a permanent fix. I brought up my safety concerns and was assured that this issue will not affect the automatic emergency braking and other safety features, which I hope is true.

Filed Feb 18, 2024 · Acceleration, Driver assistance · FL

When towing a trailer with my Rivian R1T on interstate 75 I set my cruise control while going with the speed of traffic at approximately 60 mph. Instead of cruise control setting at the speed I was traveling, it instead sets at the posted speed limit. In most conditions, this wouldn't create a hazard as adaptive cruise control would keep the vehicle from accelerating more than the speed the vehicle directly in front of me is going. But when towing a trailer, the R1T disables the adaptive part of cruise control as well as emergency braking. Setting cruise control in this circumstance nearly cased me to rear end the car in front of my as I wasn't expecting the cruise control to set at nearly 10 mph faster than I was traveling when I set it. To be clear. This is not "resuming" a previous cruise control speed I had been set to, this sets at the posted speed limit.

Filed Sep 1, 2022 · Driver assistance, Transmission · CA · crash

The Driver+ (D+) feature on the Rivians have both adaptive cruise control and lane centering active at the same time. There is a function unknown to me that controls whether or not the D+ feature can turn on or remain on. In certain situations, the D+ features asks the driver the disable the system by pushing the right stalk upward with a red message on the gauge console screen. In other situations, the D+ feature forcibly disables with a similar red message on the gauge console screen. The messages themselves look very similar at first glance and require the driver to look down to discern between the two because the outcome for both scenarios is very different, particularly when D+ forcibly disables itself. When D+ disables itself (again the reasons are unknown to me at the time and not predictable other than maybe GPS location), there is a VERY brief warning to the driver then turns off and automatically brakes the vehicle. This D+ error is not as common as the other warning described above that asks the user to push the right stalk upward to turn it off. Once D+ forcibly turns itself off, the vehicle brakes aggressively. Due to muscle memory of the other similar-appearing error, it is normal to push the right stalk upward to disable it. Herein lies the issue: the vehicle is aggressively slowing down and pushing up on the right stalk (seemingly to disable D+) actually puts the vehicle into Reverse drive. This is because the vehicle does NOT require the brake pedal to be pressed to change into Reverse at low speeds (threshold unknown). This results in unpredictable and unexpected behavior of the vehicle within the matter of a few seconds. When the driver thinks they are disabling D+, they are unexpectedly putting the vehicle in reverse, so when accelerating from the stop caused by D+ the vehicle moves in reverse. This is most prevalent when using D+ in stop/go to light traffic and resulted in reversing on the freeway into another vehicle.