2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
2021 · All trims · All engines
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Toyota Prius has 2 documented known issues, with 1 rated critical. The most serious is Catalytic Converter Theft Vulnerability ($150-$3,000 repair). Across all issues with published estimates, repair costs range from $150 to $3,000. DIY maintenance guides at au7o.io.
BACK OVER PREVENTION:DISPLAY FUNCTION
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2022-2026 Toyota, Lexus, and Subaru Solterra vehicles equipped with a Panoramic View Monitor (PVM) system. Please see the recall report for a complete list of models. A software error may cause the rearview camera to freeze or display a blank screen when the vehicle is in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2024 Prius Prime, 2023-2026 Prius, and 2025-2026 Prius Plug-in Hybrid vehicles. Water may enter the rear door switch and cause a short circuit, allowing an unlocked rear door to open unexpectedly.
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2022 Prius and Prius Prime vehicles. The Engine Control Unit (ECU) software may falsely detect an error and shut down the hybrid system, causing a loss of drive power.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Toyota Prius has 2 documented issues. The most frequently reported are: Catalytic Converter Theft Vulnerability, 12V Auxiliary Battery Drain and Failure. Of these, 1 is rated critical and should be addressed promptly.
The 2021 Toyota Prius has 2 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Catalytic Converter Theft Vulnerability. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Toyota Prius issues range from $150 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Catalytic Converter Theft Vulnerability, typically costs $150-$3,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The Toyota Prius is the single most targeted vehicle for catalytic converter theft in the United States. The Prius catalytic converter contains higher concentrations of precious metals (palladium, rhodium, platinum) than most vehicles because the hybrid system results in a cleane… Repairs typically run $150-$3,000. Severity: high.
The 12V auxiliary battery in the Prius is critical for powering the vehicle computer systems that must boot up before the hybrid system can start. Unlike conventional cars where a weak battery can still crank the engine, a dead 12V battery in the Prius means the vehicle will not… Repairs typically run $150-$300. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2024 Prius and Prius Prime vehicles. Water may enter the rear door switch and cause a short circuit, allowing an unlocked rear door to open unexpectedly.
EQUIPMENT:OTHER:LABELS
Gulf States Toyota, Inc. (GST) is recalling certain Toyota 2023 GR Supra, 2024 4 Runner, Corolla, Grand Highlander, Grand Highlander Hybrid, Land Cruiser Hybrid, Tacoma, Tacoma Hybrid, 2023-2024 BZ4X, Corolla Cross Hybrid, GR Corolla, GR86, Highlander, Highlander Hybrid, Prius, Prius Prime, Sequoia Hybrid, Tundra, Tundra Hybrid, Venza Hybrid, 2023-2025 Crown, and 2025 Camry Hybrid vehicles equipped with GST accessories. The load carrying capacity modification label may display inaccurate added weight values. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
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