The National Highway Traffic Safety Administration (NHTSA) has launched a probe into Tesla’s self-driving software following several incidents in which the system caused cars to violate traffic laws.

The auto safety regulator said Tuesday that it had identified numerous incidents in which the company's Full Self Driving software ignored red light signals or attempted to change lanes into oncoming traffic.

The NHTSA pointed to 18 complaints and one media report in which Tesla vehicles using the self-driving software failed to remain stopped or to stop fully at a red light or failed to accurately detect the traffic signal. It said it has also received six reports of crashes, four of which resulted in injuries.

The software also prompted cars to enter opposing lanes, cross double-yellow ma

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