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P0A7F: Why Your Hybrid Battery Pack Is Being Called 'Deteriorated'
P0A7F means the hybrid battery's control system has judged the pack degraded. Here's what it measures, how it differs from P0A80, and your repair options.
Toyota, Prius & Lexus hybrid battery service — Phoenix metro, AZ
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Symptoms, decisions and the things that cost people money. Written for Toyota, Prius and Lexus owners in the Phoenix metro — not for search engines.

P0A7F means the hybrid battery's control system has judged the pack degraded. Here's what it measures, how it differs from P0A80, and your repair options.

P0A80 means your hybrid pack has degraded past the point the computer will keep balancing it — but that doesn't automatically mean full replacement.
· Updated August 20, 2026
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