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NHTSA recall 21V734000

Engine And Engine Cooling, Hybrid Propulsion System · Toyota Motor Corporation

September 22, 2021report date
8,411units affected
Vehicle recalltype
Details

What's wrong: The engine control unit (ECU) software may falsely detect an error and shut down the hybrid system, causing a loss of drive power.

Why it matters: A loss of drive power increases the risk of a crash.

The fix: Dealers will update the ECU software, free of charge. Owner notification letters were mailed November 18, 2021.

Affected vehicles on MotorDeets

All model years NHTSA lists

2022 Toyota Prius, 2022 Toyota Prius Prime.

Recalls can cover only some VINs. Check yours on NHTSA's official recall page for 21V734000.

Source: NHTSA recall records. Summary shortened; the official notice has the full text.