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Service bulletins for the 2003 Pontiac Sunfire

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.

458 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Heating and air conditioning are shown. Show all

Bulletins, newest first
PIT5099G2023-12-26. 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.
PIP5540J2023-01-30. 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.
PIT5099F2022-07-25. 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.
PIT5099E2020-08-10. 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.
PIT5099D2018-11-13. 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.
PIT5099C2018-08-06. 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.
PIT5099A2018-05-07. 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.
030848006J2017-12-22. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This informational bulletin provide information for the technicians to repair the rear window defroster contact or tabs.
7092005-12-16. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; VISIBILITY. CAR ISSUES - FIX IT RIGHT THE FIRST TIME (NEW ISSUES IN BOLD). TO INCLUDE 2006 AND 2007 MODELS. GM. TECH LINK. *TT
6112005-09-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE; EQUIPMENT:APPLIANCE:AIR CONDITIONER. BINDING MODE VALVE-HVAC. *SC
016822004-06-04. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC MODE CONTROL HARD TO CHANGE SETTINGS. *TT
016852004-04-30. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC MODE CONTROL HARD TO CHANGE SETTINGS. *TT
0301380122003-12-04. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. UNDERHOOD RATTLE OR GROWL NOISE WITH AIR CONDITIONER ON. *TT
012892003-11-18. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CHIRP OR SQUEAK ON ACCELERATION FROM STOP. SERVICE VME. *TT
0627032003-10-29. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. FOLLOW UP TO A SERVICE VME SENT OUT ON MAY 29TH REGARDING THE AIR CONDITIONER SIX CVC COMPRESSORS AND POSSIBLE NOISES ASSOCIATED WITH THEM. *TT
0619032003-10-29. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TROUBLESHOOTING/REPAIRING AIR CONDITIONING CHIRP OR SQUEAK DURING INITIAL ACCELERATION. *TT
0603032003-10-28. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CONCERNS WITH REPLACEMENT OF THE 6CVC AIR CONDITIONER COMPRESSOR FOR A NOISE COMPLAINT. *TT
030138005A2003-08-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HARD TO CHANGE HVAC MODE OR TEMPERATURE SETTINGS. *TT UPDATE. *AR

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.