{"id":"2021_toyota_prius","make":"Toyota","make_slug":"toyota","model":"Prius","model_slug":"prius","year":2021,"url":"/toyota/prius/2021/","pts":["hev"],"configs":[{"id":42810,"model":"Prius Eco","pt":"hev","drive":"Front-Wheel Drive","trany":"Automatic (variable gear ratios)","cyl":4,"displ":1.8,"eng":"Hybrid","turbo":false,"super":false,"start_stop":true,"city":58,"hwy":53,"comb":56,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"207V Li-Ion and NiMH","fuel":"Regular","vclass":"Midsize Cars","co2":158,"fe_score":10,"ghg_score":10,"fuel_cost":1100,"save_spend":5750,"guzzler":false,"mfr_code":"TYX","modified":"Mon Oct 26 00:00:00 EDT 2020"},{"id":42808,"model":"Prius","pt":"hev","drive":"Front-Wheel Drive","trany":"Automatic (variable gear ratios)","cyl":4,"displ":1.8,"eng":"Hybrid","turbo":false,"super":false,"start_stop":true,"city":54,"hwy":50,"comb":52,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"207V Li-Ion and NiMH","fuel":"Regular","vclass":"Midsize Cars","co2":170,"fe_score":9,"ghg_score":9,"fuel_cost":1200,"save_spend":5250,"guzzler":false,"mfr_code":"TYX","modified":"Mon Oct 26 00:00:00 EDT 2020"},{"id":42809,"model":"Prius AWD","pt":"hev","drive":"Part-time 4-Wheel Drive","trany":"Automatic (variable gear ratios)","cyl":4,"displ":1.8,"eng":"Hybrid","turbo":false,"super":false,"start_stop":true,"city":51,"hwy":47,"comb":49,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"207V Li-Ion and NiMH","fuel":"Regular","vclass":"Midsize Cars","co2":179,"fe_score":9,"ghg_score":9,"fuel_cost":1250,"save_spend":5000,"guzzler":false,"mfr_code":"TYX","modified":"Mon Oct 26 00:00:00 EDT 2020"}],"vclass":"Midsize Cars","segment":"Midsize car","epa_certified":true,"recalls":[],"recall_count":0,"critical_count":0,"park_outside":false,"do_not_drive":false,"score":100,"grade":"A","complaints":{"count":6,"crash":1,"fire":0,"injured":0,"deaths":0,"comps":[["Engine",2],["Fuel/Propulsion System",2],["Wheels",1],["Unspecified",1],["Service Brakes",1],["Electrical System",1]],"by_year":{"2021":2,"2023":2,"2024":1,"2026":1},"excerpts":[["2026-02-23","Fuel/Propulsion System","When i am going down it's charging when the charge reaches 6 from 8 the engine starts working and stop changing at that point and the power continues comes from engine only without the hybrid battery and there are no codes"],["2024-09-18","Vehicle Speed Control","The contact owns a 2021 Toyota Prius. The contact stated while driving approximately 35 - 45 MPH, the vehicle independently accelerated. The brake pedal was depressed but failed to stop the vehicle immediately. The contact swerved around the vehicle in front and ended up on the opposite side of the roadway. The contact\u2026"],["2023-07-14","Forward Collision Avoidance","The Lane keeping assist used in radar cruise control mode during some drive cycles will attempt to maintain the vehicle position to the far extreme of the lane and in some cases actively veer out of the lane. My safety ant others can be put at risk when the vehicle behaves outside of its design parameters like this. To\u2026"]]},"investigations":[{"action":"DP22005","component":"ELECTRICAL SYSTEM:PROPULSION SYSTEM","opened":"2023-01-27","closed":"2023-08-07","campaign":"22V063000","subject":"Pedestrian alert sounds","summary":"NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matt"}],"ncap":[{"desc":"5 HB AWD","overall":5,"frontal":4,"side":5,"rollover":4,"rollover_risk":0.107,"seats":5,"fcw":"Standard","ldw":"Standard","aeb":"Standard","esc":"","backup_cam":"","variant":null},{"desc":"5 HB FWD","overall":5,"frontal":4,"side":5,"rollover":4,"rollover_risk":0.107,"seats":5,"fcw":"Standard","ldw":"Standard","aeb":"Standard","esc":"","backup_cam":"","variant":null}],"popularity":135,"headline":{"range":null,"mpg":56,"ncap":5,"complaints":6},"presskit_trims":[],"generated_at":"2026-09-11 06:27 UTC","sources":["EPA fueleconomy.gov","NHTSA recalls","NHTSA complaints","NHTSA NCAP","NHTSA investigations"]}