Component
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
Manufacturer
Toyota Motor Engineering & Manufacturing
What Happened
There's a software issue with the computer that controls your hybrid system, which might make the car stop moving if it thinks there's a problem.
Risk if Unfixed
If your car's hybrid system shuts down, you could lose control or be unable to stop safely, which increases the risk of a crash.
Free Fix
Toyota will update the computer software for free, so schedule an appointment with the dealership to get your car fixed.
Show original NHTSA language
Original — What Happened
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.
Original — Risk if Unfixed
A loss of drive power increases the risk of a crash.
Original — 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.
View full recall details →
Repairs are free at any authorized dealer. Find a dealer →