Since February 20th, I have begun keeping a log of these occurrences. Below is a summary: [XXX]: 2-3 occurrences on [XXX] (from Estes Park to Fort Collins, CO) and 2 occurrences on [XXX] northbound. [XXX]: 2-3 occurrences on [XXX] southbound. [XXX]: 1 occurrence on [XXX] southbound and 1 near the [XXX] exit in Colorado. [XXX]: 2-3 occurrences on [XXX] southbound. [XXX]: 2 occurrences on [XXX] southbound, on the morning of my service appointment to drop the vehicle off at the Tesla Service Center in Loveland, CO. [XXX]: 2 occurrences on [XXX] northbound, on the way home from the service appointment. each time the car abruptly slows down by 10-15 miles per hours, unless I intervene and stop using this feature. I only use the cruise control feature of the car. There have been several close calls with other motorists on the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)