# Service bulletin 631109

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.

- Type: Service bulletin
- NHTSA id: 51246
- Published by NHTSA: 1997\-06\-27
- Manufacturer's number: 631109
- Manufacturer's date: 1997\-01\-01
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

## NHTSA's summary

AIR COMING FROM I/P VENT WHILE IN HEATER MODES OR A DELAY OCCURS WHEN CHANGING TO A NEW MODE SETTING \(DIAGNOSE/MODIFY/REPLACE\). \*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

- 1996 to 1997 BUICK SKYLARK
- 1996 to 1997 OLDSMOBILE ACHIEVA
- 1996 to 1997 PONTIAC GRAND AM

## Other bulletins for the same vehicles and component

- [631051](/bulletins/51241.md), 1997-06-27, Service bulletin: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. LEFT REAR DOOR POWER WINDOW INTERMITTENTLY INOPERATIVE/COMPLETELY INOPERATIVE \(SECURE CONNECTOR WITH TIE STRAP\). \*TW

JSON: [/v1/bulletins/51246](/v1/bulletins/51246)

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