Service bulletins for the 1998 Cadillac Seville
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.
94 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Heating and air conditioning are shown. Show all
| 030844005B | 2004-03-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. POOR RADIO RECEPTION OR RADIO STATIC/ INCREASED INTERFERENCE WITH REAR WINDOW DEFOGGER ON OR SOME REAR WINDOW DEFOGGER GRIDS MAY BE INOPERATIVE. *TT |
|---|---|
| 030139001A | 2003-09-27. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. REAR HVAC BLOWER CONTROL KNOB MAY FALL OFF. *TT |
| 030139006 | 2003-08-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. DIFFICULT TO MAINTAIN DESIRED HVAC TEMPERATURE. *TT |
| 030139001 | 2003-04-24. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. REAR HVAC BLOWER CONTROL KNOB MAY FALL OFF. *TT |
| 98831114 | 1998-08-28. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. EXCESSIVE AIR FLOW COMING FROM VENTS AND/OR TOO COLD WHEN SWITCHING FORM HEATER TO BI-LEVEL ON AUTO. *YC |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.