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Service bulletin 270901

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 id626507
Published by NHTSA2001-12-14
Manufacturer's number270901
Manufacturer's date2001-09-27
NHTSA componentSERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM

NHTSA's summary

SUBJECT REGARDING NECESSARY RESURFACING OF THE PARK BRAKE DRUM. *JG

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, Brake drums and shoes

Vehicles listed
CHEVROLET BLAZER1997, 1998, 1999, 2000, 2001
CHEVROLET ENVOY1997 to 2001
CHEVROLET JIMMY1997 to 2001
CHEVROLET S101997 to 2001
CHEVROLET SONOMA1997 to 2001
GMC ENVOY1997 to 2001
GMC JIMMY1997 to 2001
GMC SONOMA1997, 1998, 1999, 2000, 2001
OLDSMOBILE BRAVADA1997, 1998, 1999, 2000, 2001

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