Musk did not disclose when the automaker would hold an event to launch its robotaxi.
“Requested what I think is an important design change to the front, and extra time allows us to show off a few other things,” Musk said on his X social media platform in a reply to a user post discussing the event.
Shares of Tesla were up nearly 5% in afternoon trading.
Bloomberg News reported last week that the event, originally set to be held on Aug. 8, had been delayed to October.
Musk had announced the August unveiling day after Reuters reported on April 5 that Tesla had canceled its long-promised inexpensive car and would continue developing self-driving robotaxis on the same small-vehicle platform.
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Musk has given minimal details about its robotaxi so far. He has only said that some vehicles would be owned and operated by Tesla, while others would be owned by individuals but rented out on Tesla’s network.