I was making a turn into a turnaround on the turnpike and ended up sliding into a guardrail. I believe the brake assistance failed because although I slowed down and braked going into the turned, the vehicle felt like it had lost control and continued towards the guardrail rather than into the pathway I was turning into. My safety was at risk from going into the guardrail when my car didn't slow down as much as I would have expected. As of now, a braking problem with 2020 RAV4's has not been confirmed by Toyota but they are set to inspect the facility within the next couple weeks to collect information from the Event Data Recorder. It's currently at a State Farm holding facility. There were no messages or symptoms of this issue prior to the incident.