Tesla, which has more than 500,000 vehicles on the road, maintains that its cars are 10 times less likely to catch fire than gasoline-powered ones. But experts say that battery fires can be harder to extinguish, because heat tends to build up in the lithium-ion battery systems.
Sunday's incident comes at a sensitive time for the company. Daniel Ives, an analyst at Wedbush Securities, said in a note to clients Monday that he is expecting a "train wreck quarter" when Tesla reports first-quarter earnings on Wednesday due to its weak delivery numbers and cost trajectory.
Earlier this month, Tesla shares dropped more than 8 percent after the company announced lower-than-expected vehicle deliveries. Ives said the stock continues to remain under pressure as investors worry that Tesla's lackluster performance will extend into the second half of the year.
On Monday, shares were down more than 3 percent in late-afternoon trading.
In January, Tesla reported its first back-to-back profitable quarter and said annual sales had surged more than 90 percent. But fourth-quarter profits were lower than expected and Tesla lost $1 billion for all of 2018, highlighting lingering criticism about its long-term ambitions in an increasingly competitive market.
Meanwhile, Tesla CEO Elon Musk has been at the center of a legal battle with the U.S. Securities and Exchange Commission, after he tweeted last year that he had secured funding to take the company private. The SEC sued Musk for allegedly lying to investors about the effort. The parties eventually settled, but the agency recently claimed that Musk violated the agreement by continuing to tweet about the company's finances without getting approval from the board, a condition of the settlement.
The episode underscores what some Tesla investors say is Musk's impulsiveness and irresponsible leadership, which could provoke serious consequences for a company already facing doubts over demand, rising debt and stiff competition.
Last week, Tesla and the SEC asked a federal judge to give them one more week to resolve the dispute.
Musk met with investors Monday afternoon at the company's headquarters to unveil his vision for a self-driving future. He was expected to share the company's latest developments in autonomous technology and demonstrate what the company describes as "full self-driving" features during the event called, "Tesla Autonomy Day." A live-stream of the event began at 2 p.m.