Honda Prologue 2024–2025 — technical service bulletin
Bulletin A25-043 · NHTSA communication 11019250 · issued May 23, 2025
Technical service bulletin
communication type
Electrical System
component
2024–2025
model years
2
vehicle entries
Official 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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.