Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 17, 2026.
Fuel economy
54 mpgcombined; city 55, highway 53; every version of this model year; plug-in hybrid versions on gasoline, 133 MPGe on electricity
Five years of fuel
$6,250EPA's own estimate for plug-in hybrids: its national gasoline and electricity prices and the share of miles it expects on electricity; not priced for any state; every version of this model year; fuel only, 15,000 miles a year
NHTSA overall safety rating
Not ratedNHTSA has no overall rating for this year
Owners have filed 16 complaints with NHTSA about the 2020 Prius Prime. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.
Complaints by part of the car
Part
Complaints
Crashes
Fires
Injuries
Visibility/wiper
5
1
0
0
Electrical system
3
1
0
0
Power train
3
1
0
0
Vehicle speed control
3
3
0
0
Tires
2
0
0
0
Air bags
1
1
0
0
Back over prevention
1
1
0
0
Exterior lighting
1
0
0
0
Service brakes
1
1
0
0
Service brakes, hydraulic
1
0
0
0
Structure
1
0
0
0
Visibility
1
0
0
0
Complaints by model year
Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.
NHTSA lists 1 recall campaign for the 2020 Prius Prime over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.
Electronic stability control (ESC); Service brakes
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2019 Lexus LS500, LC500, ES300h, UX250h, LS500h, Toyota Prius, RAV4 HV, 2019-2020 Toyota Prius Prime, and 2020 Corolla HV vehicles. The brake booster pump may fail causing a deactivation of the Vehicle Stability Control system and a loss of braking assist. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control Systems."
Risk: Deactivation of the vehicle stability control system or a loss of braking assist increases the risk of a crash.
Remedy: Toyota will notify owners, and dealers will inspect and, if necessary, replace the brake booster pump, free of charge. The recall began September 20, 2019. Toyota owners may contact Toyota customer service at 1-888-270-9371 and Lexus owners may contact Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are K1L/K0L. Lexus' numbers for this recall are K2F/KLF.
Carmakers sent NHTSA 123 service bulletins and notices that cover the 2020 Prius Prime, the latest on Jan 30, 2026. They tell dealers how to fix known issues.
The parts they mention most: equipment (46), electrical system (35), structure (30), back over prevention (7), engine (7).
NHTSA defect investigations
Opening an investigation isn't a finding of a defect. Outcomes are as NHTSA's summary states them. A recall is shown as an investigation's outcome only where NHTSA's summary names it; other recalls NHTSA's file lists with it are marked as listed, not caused.
Investigation
Part
Opened
Status
Defect petition DP22005 Pedestrian alert sounds · covers 43 makes
The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2020 Prius Prime.
EPA class: midsize cars. EPA greenhouse gas score: 10 out of 10. Each version EPA tested:
Swipe the table sideways for more columns.
Version
Engine
Transmission
Fuel
City / hwy / comb
Prius Prime Front-Wheel Drive
1.8 L, 4 cyl
Automatic (variable gear ratios)
Regular Gasoline or Electricity 25 miles on electricity, 640 miles in all
55 / 53 / 54 on gasoline 133 MPGe on electricity
Sources and dates
U.S. EPA fuel economy data, file of Sep 29, 2026
NHTSA owner complaints, file of Oct 17, 2026
NHTSA recalls, file of Oct 17, 2026
NHTSA manufacturer communications, file of Oct 17, 2026
NHTSA defect investigations, file of Oct 17, 2026
NHTSA 5-Star Safety Ratings, file of Aug 7, 2026
U.S. Energy Information Administration, file of Oct 12, 2026
Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data