2021 Toyota Prius - Maintenance & Specs
The 2021 Toyota Prius belongs to a Toyota Prius lineup that Know Your Ride tracks across 13 model years, from 2001 to 2026. Engine options on record include the 1.8L, 1.8L I4. It is configured as front-wheel drive with an automatic (variable gear ratios). The 2021 sits mid-run, with both earlier (2001) and later (2026) Prius model years also documented.
It takes 0W-20 full synthetic oil, 4.4 qt with a new filter meeting ILSAC GF-6A. Fluid specs on file include Super Long Life coolant, DOT 3 brake fluid, ATF WS transmission fluid. Know Your Ride lists 14 scheduled maintenance items for this vehicle, the earliest interval falling at 7,500 miles. Documented torque values include oil drain plug 30 ft-lb, lug nut 76 ft-lb, spark plug 18 ft-lb.
NHTSA complaints for this vehicle cluster around electrical system,service brakes,engine (1), forward collision avoidance,lane departure (1), fuel/propulsion system (1). A representative report reads: "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..."
EPA fuel economy is rated at 54 city / 50 highway MPG, 52 MPG combined. Estimated annual fuel cost is about $850.
Quick Specs
| Oil viscosity | 0W-20 |
| Oil type | Full Synthetic |
| Oil capacity (w/ filter) | 4.4 qt |
| OEM oil spec | ILSAC GF-6A |
| EPA combined | 52 MPG |
| Tire size | 215/55R17 |
| Coolant | Super Long Life |
| NHTSA overall | 5 / 5 stars |
| Technical service bulletins | 90 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
Related Vehicles
Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.