NHTSA 21V734000 United States
Toyota Prius recall: Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software
Official safety recall 21V734000 published by NHTSA.
High risk
Contact an authorised dealer of the maker. Recall repairs are free of charge.
Campaign21V734000
ComponentEngine And Engine Cooling:engine:engine Control Module (ecu/ecm):software
Report date2021-09-22
ManufacturerToyota Motor Engineering & Manufacturing
Affected vehicles
| Vehicle | Model year | Market |
|---|---|---|
| Toyota Prius Prime | 2022 | United States |
| Toyota Prius | 2022 | United States |
The problem
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.
A loss of drive power increases the risk of a crash.
The official 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.