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Service bulletin SB635006

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 id626145
Published by NHTSA2001-12-13
Manufacturer's numberSB635006
Manufacturer's date2001-09-18
ReplacesSB635006
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT

NHTSA's summary

SUBJECT REGARDING ALL MODELS EXCEPT LE AND MR, DIFFICULTY ADJUSTING CAB HEAT TEMPERATURE ON CHASSIS EQUIPPED WITH AN AIR CONDITIONING UNIT MAY BE EXPERIENCED. *TT

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
MACK LE
MACK MACK

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