2020 Toyota Prius Prime: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"ON MULTIPLE OCCASIONS, FROST DEVELOPING ON THE INSIDE OF THE WINDSHIELD WHILE VEHICLE PARKED IN THE PARKING LOT AT WORK 2 TIMES(JAN 17TH AND THE 30TH AT HOME AND AT WORK IN THE MORNING AND AFTER WORK) AND ANOTHER TIME WHILE VEHICLE PARKED AT HOME IN THE DRIVEWAY. IT TAKES 20 OR MORE MINUTES TO DEFR..."
"FROST DEVELOPING ON THE INSIDE OF WINDSHIELD ON MULTIPLE DAYS IN DIFFERENT LOCATIONS. AT HOME AND AT WORK DURING THE DAY TIME AND AT NIGHT. TAKES 20 MINUTES OR MORE TO DEFROST."
"TL* THE CONTACT OWNS A 2020 TOYOTA PRIUS PRIME. THE CONTACT STATED THAT HE PURCHASED AND INSTALLED A DASHBOARD COVER IN THE VEHICLE. THE CONTACT STATED THAT WHILE REVERSING, THE DASHBOARD COVER SHIFTED AND BLOCKED THE SENSOR FOR THE BACK OVER PREVENTION CAMERA, ALLOWING THE DISPLAY SCREEN TO GO DARK..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Toyota Prius Prime — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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