Service bulletins for the 2015 Buick LaCrosse
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.
1576 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Heating and air conditioning are shown. Show all
| PIT5099G | 2023-12-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
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| PIT5099A | 2023-12-11. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C Blows Warm Or Poor Performance. |
| PIP5540J | 2023-01-30. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW:ELECTRICAL HEATING ELEMENT. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance. |
| PIT5099F | 2022-07-25. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| 12-01-37-001F | 2022-07-12. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service. |
| PIT5099E | 2020-08-10. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| PIT5099D | 2018-11-13. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| PIT5099C | 2018-08-06. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| 99-01-39-004F | 2018-06-11. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This technical bulletin provides a procedure to correct the customers concern of odor coming from the Air conditioning. |
| 99-01-39-004F | 2018-05-29. Service bulletin. EQUIPMENT; EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This technical bulletin provides a procedure to correct the customers concern of odor coming from the Air conditioning. |
| 99-01-39-004G | 2018-05-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. This technical bulletin provides repair information for the correction of a customer concern of short duration musty odors emitted from the HVAC system at vehicle start-up in hot, humid conditions. |
| 99-01-39-004F | 2018-05-21. Service bulletin. EQUIPMENT; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This technical bulletin provides a procedure to correct the customers concern of odor coming from the Air conditioning. |
| PI1440 | 2018-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system. |
| PIT5099A | 2018-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| 030848006J | 2017-12-22. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This informational bulletin provide information for the technicians to repair the rear window defroster contact or tabs. |
| PIE0339B | 2017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This engineering information bulletin announces the end of need for information from the field regarding poor A/C performance. |
| PI1440 | 2017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.