Several users have posted videos on social media of Tesla vehicles that appear to have been in near accidents. One posted a video of a Tesla striking a garage wall and another of a Tesla being struck by a vehicle backing up.
"Consumers are not getting fully tested, consumer-ready technology," said Jake Fisher, senior director of auto testing at the magazine, in a report on Tuesday.
"What consumers are really getting is the chance to participate in a kind of science experiment."
A Tesla software update last month added the Smart Summon feature for some customers. When the car is within 200 feet and in their line of sight, they use a phone app to summon the vehicle in a parking lot.
The company did not immediately respond to a request for comment.