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Stack AV Self-Driving Crashes

2 crashes involving Stack AV's self-driving vehicles were reported to the National Highway Traffic Safety Administration between September 2025 and April 2026, 0.1% of all reported self-driving crashes. In 0% of them the Stack AV vehicle was stopped or parked; 0% involved a reported injury.

Crashes reported: 2
Share of all: 0.1%; #27 of 35 companies
Vehicle stopped or parked: 0%
Injury reported: 0
Serious or fatal: 0
Cities: 2

Crashes per month

Stack AV crashes reported to NHTSA per month

Peak: September 2025, 1 crashes

View as a table

Month	Crashes
September 2025	1
October 2025	0
November 2025	0
December 2025	0
January 2026	0
February 2026	0
March 2026	0
April 2026	1

A rising line usually means a growing fleet: more vehicles and more miles, in more cities. Without the miles, the count alone cannot say whether Stack AV's vehicles crash more or less often over time.

Most serious injury reported

No injuries reported100% · 2 crashes

What the Stack AV vehicle collided with

Another vehicle100% · 2 crashes

Who could take the wheel

Safety driver on board100% · 2 crashes

Where they happened

Edgewood, NM 1 crash
Mount Pleasant, PA 1 crash

Other companies

Waymo 2,382 crashes
Zoox 170 crashes
Cruise 156 crashes
Avride 84 crashes
May Mobility 48 crashes
Tesla 36 crashes
Motional 28 crashes
Aurora 24 crashes

Every company, ranked.

How to read these numbers

A count is not a rate. A company that drives more miles reports more crashes. NHTSA does not publish the miles behind these reports, so nothing here is divided by distance, and a longer bar does not mean a less safe car.
Being in a crash is not causing it. The reports do not assign fault, and many of these crashes happened while the self-driving vehicle was stopped or parked, often hit from behind.
Companies file these reports themselves. NHTSA publishes them as filed: they may be incomplete or unverified, injuries are as alleged, and some details are withheld as confidential business information.
One crash, one row. A crash can get several reports, from updates or from more than one company (an operator and its fleet partner); we count it once, using NHTSA's own incident ID.
The rules changed in June 2025. NHTSA amended what must be reported and when, so counts before and after that month are not directly comparable.
Driver assistance is not here. Crashes with systems like Tesla Autopilot or GM Super Cruise in customers' cars are a separate NHTSA dataset with different rules. 15 reports filed in the self-driving file that name a driver-assistance system are left out.