RivianOS 2 lands on the R1, and the parity claim comes with hardware asterisks

Rivian owners have spent about two years making the same complaint in the same order: the screen looks lovely, and then you tap something and wait. On Friday the company began rolling out the update that is supposed to end that argument. Software 2026.31 puts RivianOS 2 on the R1T and R1S — both generations — which means every vehicle Rivian sells now runs the same code.

R2 owners have had this interface for roughly a month. R1 owners get it now, and they get it with a caveat that is worth understanding before anyone reads the release notes as a promise.

The top status bar is gone. In its place is a vertical strip down the left edge of the centre display holding your profile, the clock and weather, connectivity, notifications, the voice assistant, settings and vehicle controls. Rivian's own description of the redesign is that “essential controls adapt dynamically to your drive”, which is corporate for: the quick controls and the media player are now panels you can throw across the screen.

That last part is the detail owners will notice hourly. The media widget and the vehicle controls can be swiped from the driver's side to the passenger's side and back, from either seat. Whoever is on cheeseburger-selection duty can take the music without the driver reaching across.

The weather app is new, pulls from Google, and gives hourly conditions plus a ten-day forecast. Navigation now carries what Rivian calls Real-time Route Alerts, which is Google Maps police and speed-camera data delivered through the map and the driver display. Rivian says the underlying information comes from authorities, third parties and community contributions.

RivianTrackr, an owner-run channel that walked through the build on a 2025 Gen 2 R1S, caught one of these alerts firing on a drive: a police icon appeared on the map, then a spoken warning followed. The creator noted he could not actually see a patrol car at that moment, which is a fair description of how crowd-fed alerts behave everywhere else too.

Press and hold a side widget on the instrument cluster and there are two additions. One is hide, which removes the widget entirely and lets the map run nearly full width. The other is a current-drive panel showing efficiency, duration, average speed and total energy used for the trip you are on. RivianTrackr flagged that the energy figure is consumption only and does not net out regeneration, which matters if you were planning to use it as a scorecard.

There is also progress on a long-running irritation. Route a Rivian somewhere it cannot reach and the system will now tell you the arrival state of charge as a negative number rather than simply refusing to commit. In the pre-release build being demonstrated it showed −18 per cent in the trip details while still throwing a generic warning icon on the main view, so the plumbing is in before the presentation is finished.

This is where the parity claim needs reading carefully. Rivian says R2 and Gen 2 R1 render the interface in Unreal Engine 5. Gen 1 R1 stays on Unreal Engine 4, explicitly to keep the displays responsive. The same split governs the AI layer: hybrid edge compute and local processing run on R2 and Gen 2 R1, while both R1 generations get cloud-assisted voice and the rebuilt driver display.

“Unifying our software platform allows R1 vehicles to fully tap into Rivian Unified Intelligence,” the company writes. Fully, in this context, means as fully as the silicon in your particular truck permits.

Some things also cost money. The weather app and Mobile Live Trips — letting the phone app watch a drive in real time and push extra stops to the vehicle mid-route — sit behind the Connect+ subscription. Mobile Live Trips needs app version 3.16 alongside 2026.31. RivianTrackr pointed out the obvious wrinkle: anyone with driver access can see that live position and reorder your route, so treat it as a shared feature rather than a private one.

Two absences are worth stating plainly. There is no autonomy functionality in this release. And the battery state-of-health menu that R2 already carries has not crossed to R1 yet; Rivian has it queued for a later update.

The same version number brings the R2 the route alerts, driver-only climate that shuts the passenger vents outright, side mirrors that tilt down in reverse on a configurable setting, a rear-wiper service position in the maintenance menu, and lockable glove boxes — both of them, individually, with automatic locking when the vehicle is locked.

The feature ping-pong is now the point. R1 has display widgets R2 does not; R2 has a battery health menu R1 does not. One codebase means each gap is a scheduling question rather than a platform question.

Whether the speed holds is the open item. Rivian's own audience has watched updates start quick and slow down over a year of additions. RivianTrackr, who works in software and said so, was blunt that the real test arrives with the next few releases rather than this one. For now the R1 stops feeling like the older car in Rivian's own lineup, which after two years of R2 previews was starting to sting.