INFO. ON INABILITY TO CONTROL TEMP. & DTC 80361, 80363, &. Buick Regal 1997

THIS IS A MONTHLY SERVICE NEWSLETTER ARTICLE. THIS BULLETIN IS NOT INTENDED FOR PUBLICATION.

SUBJECT: INFORMATION ON INABLITY TO CONTROL TEMP AND DTC B0361, B0363, B0365, B0367

MODELS: 1997 BUICK REGAL WITH DUAL ZONE HVAC

SOME 1998 BUICK REGALS MAY EXHIBIT A CONDITION WHERE THERE IS VERY POOR TEMPERATURE CONTROL AND/OR DTC'S B0361, B0363, B0365, OR B0367 MAY SET. THE CONDITION IS CAUSED BY THE HVAC CASE ALLOWING THE AIR MIX DOOR TO OVERTRAVEL ITS POSITION. THESE DTC'S ARE NOT SHOWN IN THE SERVICE MANUAL. REPLACEMENT OF THE HVAC CASE IS REQUIRED TO CORRECT THIS CONDITION.

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GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR TO PROVIDE INFORMATION THAT COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TECHNICIANS HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS AND KNOW-HOW TO DO A JOB PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THAT THE BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE A GENERAL MOTORS DEALER SERVICING YOUR BRAND OF GENERAL MOTORS VEHICLE FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.