Tesla is recalling 2 million cars due to Autopilot, which has been an issue after a review of nearly 1,000 crashes.

Tesla had agreed to an “over-the-air” software update starting Tuesday and will limit the use of the Autosteer feature if a driver repeatedly “fails to demonstrate he or she is ready to resume control of the car while the feature is on,” per a letter to Tesla by the National Highway Traffic Safety Administration.

The recall comes two days after an investigation was released by the Washington Post that found at least eight accidents, including some fatalities, in which the Autopilot feature should not have been engaged.

The software update happens automatically, and does not require a visit to a dealership.

On Tuesday, Tesla posted a response to the Post’s story.

“Safety metrics are emphatically stronger when Autopilot is engaged than when not engaged” it wrote, pointing to statistics that suggested there were fewer crashes when the system was used.

“The data is clear: The more automation technology offered to support the driver, the safer the driver and other road users” Tesla said.

The National Highway Traffic Safety Administration said, “In certain circumstances when Autosteer is engaged, the prominence and scope of the feature’s controls may not be sufficient to prevent driver misuse (of the feature.)”

In addition to the software updates, Tesla will mail letters to car owners notifying them of the change.