Outpacing Rumors with Scientific Evidence:
A 72-Hour Record of Authoritative Investigation and Care

Executive Summary: Following a thermal runaway incident involving a Yunchi Model-X during charging, Yunchi activated its "T+0 Rapid Response." Within 2 hours, the site was secured and those affected were reassured; within 48 hours, a national-level third-party investigator was brought in; at 72 hours, a data-backed authoritative conclusion was released and a claims channel was opened with insurers, minimizing negative impact.

01 / Context and Concerns

Background: An Isolated Incident Under Intense Scrutiny

The incident occurred downtown. Footage spread rapidly across short-video platforms and hit trending searches within 2 hours. Baseless speculation about "battery defects" and "systemic design flaws" quickly took hold.

Core Challenges

Secondary fallout from public opinion: Any explanation without hard evidence would be read as "passing the buck."

Community panic: Owners grew concerned about safety, risking a wave of order cancellations.

On-Site Arrival

45min

Time for the regional general manager to arrive on site

Investigation

Third Party

100% commissioned to authoritative third-party investigators

Community Trust

Stability

Stable daily active users and posting volume in the app community

02 / Response Framework

T+2h Immediate Action

On-site response: Regional after-sales and PR teams arrived, assisted firefighters, and secured the site.
Care: Provided a dedicated car service and hotel accommodation, pledging to resolve the owner's transportation needs first.

T+8h Statement of Facts

The official Weibo account published a "Statement on the Incident":
1. Confirmed there were no injuries or fatalities.
2. Stated that cloud data (EDR) showed normal battery indicators prior to the incident.
3. Announced the engagement of a national-level third-party agency and welcomed media scrutiny.

48h

T+48h Transparency

Investigation site: A joint inspection by the third-party agency and the fire department found preliminary evidence of a severe impact from a hard object on the chassis.
Community management: Launched a "Driving Safety Q&A" in the app, with experts answering questions online to ease concerns.

72h

T+72h Case Closed

Investigation report released, concluding that "severe external impact to the chassis damaged the battery cells."
Announced free chassis inspections for vehicles in the affected batch, with upgraded protective materials for the next generation.

03 / Media & Public Response

EV Planet News

"No passing the buck, no deleting posts. With a detailed third-party investigation report, Yunchi Auto has set the benchmark for incident response in the new energy vehicle industry."

Owner Feedback (App)

"It's unfortunate the accident happened, but the company responded quickly, and the free chassis inspection puts my mind at ease. I'll keep supporting them."

04 / Long-Term Safety Mechanisms

Full Lifecycle Safety Management

BMS Alert Upgrade: Optimized algorithms deliver millisecond-level alerts for abnormal chassis vibration and cell voltage differentials.
Insurance Partnership: Data integration with insurers to launch "Battery Safety Insurance."
Safety Education: Safe-driving courses launched in the app, with points rewards to encourage learning.
Open Black Box: A commitment to unconditionally support EDR data retrieval after any incident, with no tampering—ever.