What are the signs of a failing Prius transmission?

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What are the signs of a failing Prius transmission?

Common symptoms include high-pitched whining noises, reduced fuel efficiency, difficulty shifting between drive modes, o r unexpected power loss. Discussing these warning signs can help owners diagnose issues early.

Lubaba asked on 13 Feb 2025 12:55:30 pm

1 Answer

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Car Mechanic Expert - on 13 Feb 2025 13:04:09 pm

Watch for these symptoms of transmission issues:

Whining o r humming noises: This could signal worn-out bearings, an inverter issue, o r normal regenerative braking sounds.
Reduced fuel efficiency: If fuel economy decreases unexpectedly, it may indicate that the transmission o r hybrid system is struggling to operate efficiently.
Difficulty shifting between drive modes: If you notice hesitation o r difficulty when switching between Drive, Reverse, and Park, the transmission may be affected.
Unexpected power loss: Sudden s in power while driving can be linked to eCVT o r inverter issues.