Tesla on FSD yields space to a signalling semi-truck, then passes
Summary
According to the linked post, a Tesla on FSD slowed by about 6 mph as a semi-truck ahead signalled and began moving, then resumed speed and passed once the truck moved right.
Written by White Box Autonomy from the sources listed below.
What is observable from the evidence
- A semi-truck ahead displayed a left turn signal and began repositioning.
- The vehicle slowed by about 6 mph.
- The vehicle resumed speed and passed once the truck moved right.
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 and precise location.
- Whether the speed change was a response to the truck's signal — behaviour is not proof of internal recognition.
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 · mikepat711
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.