HONDA
A25-028
Manufacturer communications
- Publication date
- 2025-07-03
- Received by NHTSA
- 2025-07-09
- NHTSA record numbers
- 11020579
Manufacturer summary
Original wording in English
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.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Honda
P0530Air Conditioning Refrigerant Pressure Sensor CircuitCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Honda | PROLOGUE | 2024 |