GM Chevrolet Bolt collides with motorbike, injures rider
GM Chevrolet Bolt collides with motorbike, injures rider
Occurred: January 2018
Page published: January 2022
GM’s Cruise self-driving Chevrolet Bolt struck motorcyclist Oscar Nilsson during a lane-change manoeuvre in San Francisco, injuring his neck and shoulder, and raising concerns about the safety, accountability and regulatory gaps around autonomous vehicles.
A Cruise-operated autonomous Chevrolet Bolt travelling in the centre lane with a human safety driver changed into the left lane in heavy traffic, then aborted the manoeuvre and moved back toward the centre lane, hitting Oscar Nilsson, who was riding a motorcycle behind it.
Nilsson, who was lane-splitting (legal in California), said he accelerated forward and that the car suddenly veered into his lane, knocking him off the bike and causing him neck and shoulder injuries that required lengthy treatment and time off work.
Nilsson subsequently sued Cruise-owner General Motors, with both parties later reaching a settlement without admissions of liability in what was widely described as one of the first lawsuits involving an autonomous test vehicle crash with a vulnerable road user.
The cause of the incident appears to have been the Bolt's Cruise AV autonomous driving system initiating a lane change and then re‑centering in its original lane in close proximity to a following motorcycle, thereby creating conflicting trajectories: the Bolt was moving laterally back into the centre lane at the same time Nilsson was moving into that space.
Cruise’s system and procedures were being tested in dense urban traffic in which predicting and accommodating motorcycles and lane-splitting behaviour is particularly demanding.
GM’s own crash report acknowledged the aborted lane change but attributed the collision to Nilsson allegedly merging before it was safe, highlighting contested responsibility and limited transparency about how the automated driving stack made its decisions.
For Nilsson, the incident meant physical injury, lost income due to time off work, and the burden of litigation to seek compensation.
For other motorcyclists and vulnerable road users, it raises concerns that autonomous vehicles may not reliably handle motorcycles, lane-splitting and other nuanced behaviours, increasing perceived risk on the road.
Societally, the case fed public debate about whether self-driving technology is being tested on public streets before it is sufficiently robust, especially in dense cities.
For policymakers, it highlights the need for clearer safety standards for AV testing, mandated disclosure of crash and disengagement data, and clarified liability rules when automation and human drivers interact. The confidential settlement, without admitted fault, also illustrates how civil litigation can resolve individual harms while still leaving systemic questions about AV design, oversight and accountability only partially answered.
Cruise AV
Operator: General Motors
Developer: General Motors
Country: USA
Sector: Automotve
Purpose: Automate steering, acceleration, braking
Technology: Self-driving system
Issue: Accountability; Safety; Transparency
December 7, 2017. Collision occurs between a Cruise-operated autonomous Chevrolet Bolt and Oscar Nilsson’s motorcycle in downtown San Francisco.
January 23, 2018. Nilsson files a lawsuit in U.S. District Court alleging the self-driving Bolt veered back into his lane and caused his injuries.
Late January 2018. GM publicly disputes fault, citing a police report and its DMV crash report claiming Nilsson merged into the lane prematurely.
June 2018. General Motors settles with Nilsson, without admitting fault. Details of the settlement were not disclosed.
AIAAIC Repository ID: AIAAIC0701