NHTSA recall 21V-734: Engine and Engine Cooling

Toyota Motor Engineering & Manufacturing · Reported September 22, 2021 · 2 affected model years

Engine and Engine Cooling recall

21V-734
September 22, 2021 · Toyota Motor Engineering & Manufacturing
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.
Safety risk
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.

Recall details

NHTSA campaign number21V734000
ManufacturerToyota Motor Engineering & Manufacturing
Report dateSeptember 22, 2021
ComponentEngine and Engine Cooling:Engine:Engine Control Module (ECU/ECM):Software
Fixed over the airNo

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

View on NHTSA.gov ↗

Affected vehicles

2022 Toyota Prius1 recall total2022 Toyota Prius Prime1 recall total

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