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Service bulletin 9802-98-1101

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 id600295
Published by NHTSA1998-05-06
Manufacturer's number9802-98-1101
Manufacturer's date1998-05-06
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

NHTSA's summary

SUBJECT ON HVAC ENHANCEMENT. *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
AM GENERAL HUMMER1994

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