NHTSA Is Investigating 115,000 Rivians Over Rear Toe Links. Here's What Owners Should Know
I own a Rivian R1S, so when NHTSA opened an investigation into nearly 115,000 R1S and R1T vehicles over rear toe link separation, I didn't stop at the headlines. I pulled the agency's own documents. Everything below comes from NHTSA's investigation resume, the federal recall filing from January, and Rivian's official recall page (Source Links At The Bottom)
The short version: this is worth your attention, not your panic. Let's walk through it.
Quick scorecard before we start, because there are two separate federal actions here and the headlines blur them together. January's action was a recall of about 20,000 vehicles that had specific service work done. May's action is an investigation covering essentially six times that number. Related, but not the same thing.
What NHTSA opened, and why
On May 26, 2026, NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE26004, covering 114,922 R1S and R1T vehicles from the 2022 through 2025 model years.
The trigger was two owner complaints, both involving 2023 to 2024 R1S vehicles, reporting that the left rear toe link separated while driving. Per the agency's summary, both vehicles swerved across multiple lanes of traffic, and one incident ended in a collision with an adjacent vehicle and a roadside barrier. NHTSA logged no injuries or fatalities.
In both separations, the bolt that maintains the integrity of the toe link fractured. The agency collected repair histories, onboard video, imagery of the damaged components, and a police accident report.
It is important to note that a preliminary evaluation is the first formal step in NHTSA's defect process. It is not a recall, and it is not a finding that anything is defective. The agency gathers evidence, then either closes the case or escalates it to an engineering analysis, the stage that more often precedes a recall.
Why the toe link matters
If you're not deep into suspension geometry, the toe link is a rod connecting the rear wheel hub to the chassis. It controls rear wheel alignment, specifically how much the wheel points in or out.
A rear toe link that separates while driving can lead to vehicle lane departures. The rear wheel effectively steers itself. Small part, outsized job. That's why two complaints are enough to get federal attention.
This isn't Rivian's first toe link conversation
According to the federal recall filing from January (NHTSA recall 26V-003, dated January 5, 2026), Rivian service used an older procedure whenever a repair required separating and reassembling the rear toe link joint. That suspect window ran from April 1, 2022 to March 10, 2025, when Rivian switched to an updated procedure. Joints reassembled under the old procedure may not be put back to design intent and can experience unintended forces, which can eventually lead to separation while driving.
That recall covered 19,641 vehicles, identified through service records. Per the filing, Rivian estimated only about 1% of the recalled vehicles actually have the defect.
The remedy, per Rivian's official recall page, is a free replacement of the affected rear toe link bolts using the updated procedure, with an estimated service time of under an hour.
So why is NHTSA now looking at nearly 115,000 vehicles, roughly six times the recall population? Because the agency wants to know whether the problem is bigger than a service procedure.
The two complaint vehicles had different histories. One had prior service, the other had been in a previous collision. And both operated for multiple months and thousands of miles with no apparent problems before the failures. If toe links can fail outside the bad-service population, that points toward something in the design or the joint itself, and that's a different conversation than wrench work.
NHTSA lists four objectives: assess how sensitive the toe link joint is to foreseeable road and service conditions, compare the physical evidence from the two complaints, evaluate Rivian's current repair procedure, and assess the condition of toe links across the in-field population. For its part, Rivian has said in statements to the press that its own investigation reached a different conclusion about the safety risk. The agency is proceeding anyway, which is exactly what it should do.
EV Outdoors take: not a panic, but not a shrug either
Two complaints out of 114,922 vehicles is a very small signal. Both incident vehicles had prior service or collision history, which keeps the door open that this is still downstream of the already-recalled service issue rather than a fleet-wide defect. If I had to bet today, that's where I'd put my money.
But I'm not going to pretend a rear suspension component that can let go at highway speed is a "nothingburger". The failure mode NHTSA describes is sudden lane departure, and one of these incidents ended in a crash. The honest position is somewhere in the middle: low probability, high consequence.
So here's what I'd actually do:
- Run your VIN. Use NHTSA's recall lookup or reach out to Rivian. If your vehicle is in the 26V-003 population, the bolt replacement is free and takes under an hour.
- Know your service history. Both known failures occurred on vehicles with prior rear suspension service or collision repair. If your R1 has either in its past, that's worth a conversation with Rivian service even if your VIN isn't flagged.
- Listen to your truck. New clunks from the rear, a rear end that feels loose or wanders, uneven rear tire wear. All worth a look regardless of this investigation. That's just good ownership of any vehicle you take down washboard roads and trailheads.
- Don't park it. Nothing in the investigation documents suggests pulling the broader fleet off the road. NHTSA opened an evaluation, not an emergency order.
What happens next
Preliminary evaluations typically run for months. Three outcomes are possible: NHTSA closes it with no action, escalates to an engineering analysis, or Rivian gets ahead of it with another voluntary recall. I'll be watching the docket and will update here when there's movement.
For now, this lands in the "check it, then go drive" category. The R1 platform has earned real trust on real trails and real towing miles, mine included. One investigation built on two complaints doesn't undo that. But part of being an honest owner-advocate is taking the regulator's questions seriously, and these are fair questions.
If your VIN is in the recall, book the appointment. It's free, and then you can get back to the good stuff.
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