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Service bulletin 98831114

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id601910
Published by NHTSA1998-08-28
Manufacturer's number98831114
Manufacturer's date1998-06-01
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

NHTSA's summary

EXCESSIVE AIR FLOW COMING FROM VENTS AND/OR TOO COLD WHEN SWITCHING FORM HEATER TO BI-LEVEL ON AUTO. *YC

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
CADILLAC SEVILLE1998

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
19981291998-06-29. Visual System
98V1440001998-06-26. VISIBILITY:WINDSHIELD WIPER/WASHER

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
030844005B2004-03-04. Service bulletin. POOR RADIO RECEPTION OR RADIO STATIC/ INCREASED INTERFERENCE WITH REAR WINDOW DEFOGGER ON OR SOME REAR WINDOW DEFOGGER GRIDS MAY BE INOPERATIVE. *TT
030139001A2003-09-27. Service bulletin. REAR HVAC BLOWER CONTROL KNOB MAY FALL OFF. *TT
0301390062003-08-26. Service bulletin. DIFFICULT TO MAINTAIN DESIRED HVAC TEMPERATURE. *TT
0301390012003-04-24. Service bulletin. REAR HVAC BLOWER CONTROL KNOB MAY FALL OFF. *TT
9908500152000-01-11. Service bulletin. CONCERNS WITH LOSS OF DRIVER SEAT, MIRROR & STEERING COLUMN MEMORY SETTINGS, PROGRAMMING FUNCTION AND / OR MEMORY RECALL FUNCTIONS IMPROPERLY. *TT
9908670011999-08-05. Service bulletin. EXPERIENCING SUN ROOF WIND NOISE / BUFFETING. *TT