NHTSA Campaign Number
21V734000
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
Defect Description
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.
Safety Consequence
A loss of drive power increases the risk of a crash.
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 Recall Page Shows
This page summarizes a single NHTSA recall campaign, including the defect description, safety consequence, and manufacturer's remedy. The affected vehicles listed below are the make/model/year combinations tracked in our database — this is not a VIN-specific result. To check whether your individual vehicle is covered by this recall, enter your 17-digit VIN at nhtsa.gov/recalls. Click any vehicle below to view its full safety profile.
Affected Vehicles (2)
| Year | Make | Model |
|---|---|---|
| 2022 | Toyota | Prius |
| 2022 | Toyota | Prius Prime |
Browse Affected Vehicles
Affected Models
Affected Years
This recall information is from NHTSA campaign 21V734000. This site is not affiliated with NHTSA. Contact your dealer or call NHTSA's Vehicle Safety Hotline at 1-888-327-4236 for more information.