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Service bulletin 731103

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 id52568
Published by NHTSA1997-08-21
Manufacturer's number731103
Manufacturer's date1997-06-01
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

NHTSA's summary

AIR TEMPERATURE FROM HVAC OUTLETS DOES NOT CHANGE OR BLOWS COLD (REPLACE TEMPERATURE VALVE DOOR). *TW

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
BUICK CENTURY1997
BUICK REGAL1997
CHEVROLET CORVETTE1997
CHEVROLET VENTURE1997
OLDSMOBILE SILHOUETTE1997
PONTIAC GRAND PRIX1997
PONTIAC TRANS SPORT1997

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

Recalls for the same vehicles and component
20000022000-01-04. Visual System
99V3480001999-12-16. VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES
98V0720001998-04-07. VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES

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
31182004-11-04. Service bulletin. WIND NOISE OR WATER LEAK AT TOP OF DOOR GLASS-ADJUSTMENT TIPS. *SC
016502004-06-04. Service bulletin. MANUAL DUAL ZONE FAN AND MODE KNOB REPLACEMENT. SERVICE VME. *TT
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
01387A2003-11-24. Service bulletin. SERVICE VME INVOLVING BLOTCHES IN ALL GLASS. *TT
014182003-11-22. Service bulletin. BLOTCHES IN ALL GLASS. SERVICE VME. *TT
0507032003-10-27. Service bulletin. BLOTCHY OR SPOTTY CONDITION PRESENT IN THE GLASS DUE TO THE TEMPERING PROCESS USED TO MEET EUROPEAN REQUIREMENTS. *TT
000138011A2002-10-11. Service bulletin. SUBJECT REGARDING POOR HEAT WITH COLD OUTSIDE TEMPERATURES AT LOW ENGINE RPM. *TT
000138011B2002-10-10. Service bulletin. SUBJECT REGARDING POOR HEAT WITH COLD OUTSIDE TEMPERATURES AT LOW ENGINE RPM. *TT
0208580052002-10-04. Service bulletin. CONCERNS WITH WIND NOISE AT THE BASE OF THE WINDSHIELD. *TT
0201390022002-05-21. Service bulletin. SOME CUSTOMERS MAY COMMENT ON THE TIME IT TAKES THE RIGHT SIDE DOOR GLASS TO DEFOG. *SLC