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May 23, 2025 Service bulletin

A Malfunction Indicator Lamp (MIL) may illuminate, or a “Service High Voltage” message may appear

Honda technical service bulletin A25-043 for 2024-2025 Honda Prologue.

Bulletin number
A25-043
Component
Electrical system
Summary
Service Bulletin - A Malfunction Indicator Lamp (MIL) may illuminate, or a “Service High Voltage” message may appear. Additionally, the 12-volt battery may intermittently or persistently discharge due to an internal Battery Energy Control Module (BECM) calibration anomaly causing the setting of specific DTCs related to battery performance and communication.

Owners of these vehicles have filed 203 complaints in the electrical category.

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