The accident happened just after the motorcade left the Ronald Reagan presidential library where Trudeau had given an address touting the benefits of the North American Free Trade deal.
Trudeau promoted his country's fast-track employment permit for certain workers, dubbed the "global skills strategy visa".
Trudeau said 9 million jobs in America are tied to trade and investment with Canada and "the truth is that both Canada and the United States are winning".
A crash involving motorcycle officers accompanying Canadian Prime Minister Justin Trudeau on his visit to Southern California sent one officer to the hospital, but Trudeau's vehicle was not involved and he was not hurt.
John Heubusch, executive director of the Reagan library and institute, said Reagan would have likely agreed with Trump on the idea of putting American interests at the forefront of negotiations, but would diverge on the idea that the US economy could make a go of it absent trade. Among them, Salesforce CEO Marc Benioff announced the online business software company will invest another $2 billion in its Canadian operations.
Heubusch said the chairman of the institute's board of trustees, Washington Post publisher Fred Ryan, raised the idea of Trudeau visiting the centre during a recent meeting with Mulroney.
Trudeau also met Thursday with Amazon Chief Executive Jeff Bezos as Bezos considers possible locations for a second headquarters. Toronto is on the shortlist.More news: Sanchez given 16-month suspended prison sentence for tax fraud
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Trump called the 24-year-old NAFTA trade pact agreement a job-killing "disaster" on the campaign trail and has threatened to withdraw from it if he can't get what he wants.
Google built its latest DeepMind artificial intelligence facility at the University of Alberta in Edmonton, Canada, after several of its graduates came to work on the project.
Canadian Prime Minister Justin Trudeau's motorcade was involved in a collision Friday, Feb. 10, 2018.
Canada's Prime Minister Justin Trudeau speaks while meeting with California Gov.
In brief remarks to reporters before meeting with Newsom, Trudeau said it was good to talk about all the issues that bind California and Canada.
Standing at the Griffith Observatory in the Los Angeles hills - a site made famous as a setting in multiple movies - Trudeau said his pitch to save the North American Free Trade Agreement from falling apart was well received.