2022 Toyota Prius & Toyota Prius Prime Hybrid Propulsion System Recall 21V734000 (Toyota 21TB07)
NHTSA recall 21V734000 (Toyota recall 21TB07 / 21TA07) covers about 8,411 2022 Toyota Prius & Toyota Prius Prime vehicles (hybrid propulsion system), filed with NHTSA Sep 22, 2021. There is no do-not-drive or park-outside advisory.
Source: NHTSA campaign 21V734000 · Data as of Nov 6, 2026 · By CarWhere Research
What's recalled
Component: Hybrid propulsion system
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.
The risk
A loss of drive power increases the risk of a crash.
The remedy and its status
Dealers will update the ECU software, free of charge. Owner notification letters were mailed November 18, 2021. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 21TB07/21TA07.
Status: NHTSA lists Nov 18, 2021 as the owner-notification date for this campaign.
Toyota recall number 21TB07 / 21TA07
NHTSA lists the manufacturer's own recall number for 21V734000 as 21TB07, 21TA07. Owner letters and dealer service departments often use this code, so a search for "21TB07 recall" refers to the same campaign.
Affected models and years
Models and model years NHTSA lists for this campaign. Not every vehicle of a listed model and year is included; check by VIN.
| Vehicle | Model years | More |
|---|---|---|
| Toyota Prius | 2022 | All Prius recallsYears to avoid |
| Toyota Prius Prime | 2022 | — |
Key dates
- Report filed with NHTSA
- Sep 22, 2021
- Owner notification
- Nov 18, 2021
- Recall initiated by
- the manufacturer
- Filed by
- Toyota Motor Engineering & Manufacturing
Check your VIN for 21V734000
- Find the 17-character VIN on the driver-side dashboard (visible through the windshield), the door-jamb sticker, or your registration.
- Enter it in NHTSA's free VIN recall lookup. It shows every open recall on that exact vehicle, including this one if it applies and hasn't been repaired.
- If 21V734000 is open, call any Toyota dealer's service department and give them the recall number (21V734000 or 21TB07). The repair is free.
Not sure of the exact model or year? Decode it first with the free VIN decoder.
Frequently asked questions
What is recall 21V734000?
NHTSA recall 21V734000 (Toyota recall 21TB07 / 21TA07) covers about 8,411 2022 Toyota Prius & Toyota Prius Prime vehicles (hybrid propulsion system), filed with NHTSA Sep 22, 2021. There is no do-not-drive or park-outside advisory. It covers certain 2022 Prius and Prius Prime vehicles.
Is it safe to drive a vehicle with recall 21V734000?
NHTSA's record for 21V734000 carries no do-not-drive or park-outside advisory. The risk NHTSA lists is: "A loss of drive power increases the risk of a crash." Get the free repair as soon as it is available for your vehicle.
How do I know if my vehicle is affected by 21V734000?
Only a VIN lookup can tell you. Not every vehicle of the listed models and years is included, and repaired vehicles drop off. Enter your 17-character VIN in NHTSA's free recall lookup at nhtsa.gov/recalls, or ask any Toyota dealer to check it.
What is the fix for recall 21V734000, and is it free?
NHTSA's record says: "Dealers will update the ECU software, free of charge." NHTSA lists Nov 18, 2021 as the owner-notification date for this campaign. Safety-recall repairs are done free of charge at authorized dealers.
What is the Toyota recall number for 21V734000?
NHTSA lists the manufacturer's own recall number as 21TB07, 21TA07. Dealers and owner letters often use that code (21TB07, 21TA07) instead of the NHTSA campaign number 21V734000.
Sources and method
- NHTSA recall record for 21V734000, from NHTSA's public recall campaign database. Problem, risk and remedy text is NHTSA's own wording.
- "Vehicles affected" is NHTSA's potential-units-affected count for the whole campaign.
- Data as of Nov 6, 2026. NHTSA updates campaigns as manufacturers file amendments, so check the official record for the latest.
Related recalls
- 26V049000: 2023–2026 Toyota (3 models) electrical system (Jan 28, 2026)
- 25V744000: 2022–2026 40 models backup camera / back-over prevention (Oct 30, 2025)
- 24V548000: 2023–2025 Toyota (22 models) equipment (Jul 23, 2024)
- 24V274000: 2023–2024 Toyota Prius & Toyota Prius Prime electrical system (Apr 17, 2024)