NHTSA campaign number
21V734000
Engine issue — affecting 2 model years across Toyota.
- Issued
- Manufacturer
- Toyota Motor Engineering & Manufacturing
- Model years
- 2022
- System
- Engine & cooling
Elevated severity
This campaign addresses a defect NHTSA classifies as carrying elevated crash or injury risk.
What the defect is
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.
Why it matters
A loss of drive power increases the risk of a crash.
The remedy
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.
What this page does not include
NHTSA's public recall feed does not supply an affected-population count, the manufacturer's own campaign number, owner-notification dates or a defect chronology for this campaign. Rather than estimate them, we omit them. Confirm whether a specific vehicle is affected — and whether the repair has already been done — using its VIN.
Check a VINVehicles affected by this campaign
2 model years in our index. Coverage reflects the vehicles VerifyTheVehicle tracks, which may be narrower than the full campaign population.