Tesla on FSD travels well above the posted speed limit while set to Chill mode
Summary
According to the linked post, a Tesla on FSD set to Chill mode travelled at about 44% above the posted speed limit.
Written by White Box Autonomy from the sources listed below.
What is observable from the evidence
- The post states the FSD speed profile was set to Chill mode.
- The vehicle's speed is stated as ~44% above the posted limit.
Automation status
Driving automation engaged — reported, not confirmed
Whether the driving-automation feature was engaged is a separate question from whether it caused the event.
System / software version
Not identified in the available sources.
Causal attribution
Undetermined
The available evidence does not establish a cause. Involvement of a driving-automation system is not the same as its being a cause.
What remains unknown
- The event date (posting date only, 16 March 2026) and the location.
- Whether the posted limit shown to the system matched the actual limit.
Interpretation
No interpretation is offered for this event.
Sources & evidence
The sources below are the evidence. The summary and any interpretation on this page are written by White Box Autonomy and are not themselves evidence.
X post · AI DRIVR
About this record
Review status: Curator-reviewed. What the review statuses mean.
Record last reviewed or updated: 1 September 2026.
To report an error or raise a concern about this record, contact zuduo.zheng@uq.edu.au.