On April 1, 2026, more than 100 Baidu Apollo Go robotaxis suddenly froze mid-traffic across Wuhan, China, blocking roads and trapping passengers inside stationary vehicles for up to two hours. Local police confirmed a “system failure” caused the mass stall, and at least two collisions occurred when other vehicles rear-ended the stranded cars; no injuries were reported. The incident had major regulatory consequences: on April 29, 2026, China suspended the issuance of new autonomous-driving permits nationwide, freezing fleet expansions and new robotaxi pilot programs across the country.