Incident Tesla Model S was up to date on recalls as far as we can tell, including the recent autopilot update via Tesla internet vehicle update releases. While driving in autopilot mode on the freeway in the lane next to the HOV lane, the autopilot got confused as to which lane it should keep and failed to maintain its lane. Incident vehicle drifted across the double lines into the HOV lane, where another Tesla Model S was driving. Both cars were damaged in the ensuing side bump impact, then the incident vehicle made a slight impact to another car rear bumper in front of the incident vehicle. No injuries were reported. A subsequent Traffic Crash Report was filed as required with CA Highway Patrol. We are awaiting this report in the mail. Our safety and others was put at risk due to the failure of the autopilot to maintain its lane. Insurance was contacted. The insurance company, USAA, has deemed the incident vehicle (our vehicle) damage too expensive to fix due to the very high cost of replacement/repair parts and has deemed our vehicle a "total loss." We have not been able to access the software of the vehicle. Since USAA has deemed the vehicle a total loss, they are selling the car for salvage and thus we have no further access to the vehicle for legal purposes. As far as I know, USAA has not pulled the vehicle software records nor has requested such records and has completely ignored the autopilot issue. That is part of the reason for our complaint here as well. Since the