Service bulletins for the 2025 Honda Prologue
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
15 on file from NHTSA, as of 2026-10-19.
About P0534 on the 2025 Honda Prologue: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0534 are shown. Show all
| A26-094 | 2026-10-15. Service bulletin. VISIBILITY/WIPER. Service Bulletin - Some vehicles may experience a lack of HVAC heating output with vehicle in ON mode. This condition typically occurs at key-on when the ambient temperature is 77°F or below and may persist for approximately 15 minutes or longer. During diagnosis, technicians may find DTC P0534 (A/C Refrigerant Charge Low) stored. |
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| A25-028 | 2026-03-03. Service bulletin. VISIBILITY/WIPER. Service Bulletin - A whistle noise may be present within the HVAC system when switching from cabin heat to full cooling (A/C on). While driving, the heat may begin to blow cold air and the blower speed may drop intermittently. Possible DTC codes P0530 (Air Conditioning Refrigerant Pressure Sensor Circuit) and P0534 (Air Conditioning Refrigerant Charge Low) may be set. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.