NEW YORK (AP) Federal auto safety regulators are investigating why Tesla has repeatedly broken rules requiring it to quickly tell them about crashes involving its self-driving technology, a potentially significant development given the companys plans to put hundreds of thousands of driverless cars on U.S. roads over the next year.
The National Highway Traffic Safety Administration said in a filing on Thursday that Teslas reports on numerous incidents involving its driver assistance and self-driving features were submitted far too late several months after the crashes instead of within five days as required.
The probe comes two months after the electric vehicle maker run by Elon Musk started a self-driving taxi service in Austin, Texas, with hopes of soon offering it nationwide. The company also hopes to send over-the-air software updates to millions of Teslas already on the road that will allow them to drive themselves.
Investors enthusiastic about such plans have kept Tesla stock aloft despite plunging sales and profits due to boycotts over Musks support for U.S. President Donald Trump and far-right politicians in Europe.
The safety agency said the probe will focus on why Tesla took so long to report the crashes, whether the reports included all the necessary data and details and if there are crashes that the agency still doesnt know about.
Tesla did not respond to a request for comment, but the agency noted that the company has told it the delays were due to an issue with Teslas data collection, which Tesla says has now been fixed.
The new investigation follows another probe that began in October into potential problems with Teslas self-driving technology in foggy weather and other low visibility conditions, which has led to several accidents including one death. That probe involves 2.5 million Tesla vehicles.
Tesla stock fell nearly 1% in midday trading Thursday to $321.
纽约（美联社）——美国联邦汽车安全监管机构正在调查特斯拉为何屡次违反规定，未及时上报涉及自动驾驶技术的撞车事故。鉴于该公司计划未来一年内在美国道路上投放数十万辆无人驾驶汽车，这一调查可能具有重大意义。
美国国家公路交通安全管理局（NHTSA）周四在一份文件中指出，特斯拉关于其驾驶辅助和自动驾驶功能涉及的"多起"事故报告提交严重延迟——这些报告在事故发生后数月才提交，而非规定的五天之内。
这项调查启动之际，距离埃隆·马斯克（Elon Musk）执掌的电动汽车制造商在得克萨斯州奥斯汀推出自动驾驶出租车服务已过去两个月，该公司希望很快将这项服务推广至全美范围。特斯拉还计划向数百万辆已上路行驶的车辆推送空中软件升级，使这些汽车具备自动驾驶功能。
尽管由于马斯克支持美国总统唐纳德·特朗普及欧洲极右翼政客而引发的抵制导致特斯拉销量与利润暴跌，但看好这类计划的投资者仍维持着特斯拉股价的高位。
安全机构表示，此次调查将重点关注特斯拉为何拖延如此之久才上报事故、报告是否包含全部必要数据与细节，以及是否存在该机构尚未掌握的其他事故。
特斯拉未就置评请求作出回应，但该机构指出，公司已告知其延误系“由于特斯拉数据收集系统存在问题”，特斯拉表示目前该问题已修复。
此次新调查启动前，美国国家公路交通安全管理局已于10月对特斯拉自动驾驶技术在雾天及其他低能见度条件下的潜在缺陷展开过另一项调查。此前调查显示，该技术已引发多起事故并造成1人死亡，涉及特斯拉车辆达250万辆。
特斯拉股价周四午盘下跌近1%，报321美元。
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