"How reliable is the 2020 Toyota Prius?"

"Based on 23 NHTSA complaints, the 2020 Toyota Prius has a median complaint mileage of 14260 miles. The most common issue is UNKNOWN OR OTHER."

"What are common problems with the 2020 Toyota Prius?"

"The most frequently reported component in NHTSA complaints for the 2020 Toyota Prius is UNKNOWN OR OTHER, accounting for a significant portion of the 23 total complaints filed."

2020 Toyota Prius: Reliability Data

Source: NHTSA — 23 complaints

Total Complaints

14,260mi

Median Mileage

UNKNOWN OR OTHER

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

4,206 25th Percentile

14,260 Median Mileage

15,670 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

UNKNOWN OR OTHER

SERVICE BRAKES

TIRES:SIDEWALL

ELECTRICAL SYSTEM

ELECTRONIC STABILITY CONTROL (ESC)

POWER TRAIN

WHEELS

STRUCTURE

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

FUEL/PROPULSION SYSTEM

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"THE MULTI INFORMATION DISPLAY THAT SHOWS THE SPEED, FUEL, AND OTHER DRIVING METRICS STOPPED WORKING, I AM NOT ABLE TO SEE HOW FAST I AM GOING, HOW MUCH FUEL IS LEFT, ODOMETER OR OTHER ITEMS THAT IS DISPLAYED THERE."

"PROXIMITY SENSORS GENERATED AN ALERT THAT PARKING ASSISTANCE SENSORS NEEDED CLEANING DURING MODERATE RAIN CLEANING THE SENSORS DID NOT RESOLVE THE ISSUE. STOPPED AT DEALER TO HAVE IT CHECKED AND WAS ADVISED THAT THE SENSOR DO THAT IN INCLEMENT WEATHER AND I WOULD NEED TO LEARN TO LIVE WITH IT. I..."

"MY DAD WAS DRIVING ON THE HIGHWAY. HE SAID THAT HE STEPPED ON THE BRAKES AND THE BRAKES DID NOT WORK. HE GOT INTO AN ACCIDENT IN WHICH THE ALL AIRBAGS WERE DEPLOYED AND THE CAR WAS TOTALED. THE CAR ONLY HAD 700 MILES. I BELIEVE THIS WAS THE SECOND TIME THAT MY DAD DROVE THIS CAR ON THE HIGHWAY. ..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

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