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Service bulletin PIC4840

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 id10025146
Published by NHTSA2008-07-14
Manufacturer's numberPIC4840
Manufacturer's date2008-06-01
NHTSA componentSERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

NHTSA's summary

SOFT BRAKE PEDAL. *NJ

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 master cylinder

Vehicles listed
BUICK LUCERNE2008
CADILLAC DTS2008

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