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By Hyunjoo Jin and Eva Mathews
(Reuters) – Tesla Inc’s top boss Elon Musk said Tesla is tweaking its self-driving software to eliminate a phantom braking problem and may release a significantly improved version within the next two to three weeks.
Tesla shares fell 2.7% to $600.42 in morning trade, headed for a third straight decline. U.S. federal and state regulators have been scrutinizing Tesla’s semi-automated driving system following accidents in Texas and other areas.
In April, Musk said he would be “surprised” if wide beta service was available later than June, calling a May launch “aspirational.”
When asked by a Twitter user whether its vision-only system would remove the “phantom braking” issue, in which a Tesla car sometimes applies a brake abruptly under an overpass or a bridge, he said, “yes.”
In March, Tesla told California regulators that it may not achieve full self-driving technology by the end of this year. It said it is currently offering a driver assistant, level-2 technology that requires driver supervision.
Subscriptions to the software for the system would be offered within a month, Musk said, without elaborating further.
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(Reporting by Hyunjoo Jin in Berkeley, California and Eva Mathews in Bengaluru; Editing by Bernard Orr and David Gregorio)