A loss of drive power increases the risk of a crash.

Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm) — Software
Hybrid Propulsion System

Summary

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.

Actions

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.

Documents (8)

• ISSUED Owner Notification Letter(Part 577)
• Recall Acknowledgement
• Manufacturer Notices(to Dealers,etc) - Toyota Date: September 22, 2021 SAFETY RECALL 21TA07 (Interim Notice 21TB07)
• September 22, 2021 DEFECT INFORMATION REPORT
• Defect Notice 573 Report
• Remedy Instructions and TSB
• Manufacturer Notices(to Dealers,etc) - Toyota 21TA07_Dealer_Letter_Published_10.21.2021
• Recall Quarterly Report #1, 2021-4

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