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Service bulletin 190101

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 id618180
Published by NHTSA2001-04-06
Manufacturer's number190101
Manufacturer's date2001-01-19
NHTSA componentSERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

NHTSA's summary

SUBJECT REGARDING A GEL LIKE SUBSTANCE FOUND IN THE MASTER CYLINDER ON 1997 THROUGH 2001 MEDIUM DUTY TRUCKS EQUIPPED WITH ABS BENDIX BRAKE SYSTEMS. *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

Brakes, Anti-lock brakes

Vehicles listed
CHEVROLET CHEVROLET TRUCK
GMC GMC TRUCK

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