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Service bulletin PIC-4887

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 id10026686
Published by NHTSA2008-12-02
Manufacturer's numberPIC-4887
Manufacturer's date2008-06-01
NHTSA componentSUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER

NHTSA's summary

GMC: HARSH RIDE OR LINE INSTALLATION CONCERN WITH DELCO SHOCK KIT. CONCERNS WITH CONNECTING THE LINES TO THE SHOCKS AND THE AIR COMPRESSOR. CONCERN OF HARSH RIDE AFTER INSTALLATION. *PE

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

Suspension, Shocks and struts

Vehicles listed
BUICK LESABRE2000, 2001, 2002, 2003, 2004, 2005
BUICK PARK AVENUE1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
BUICK RIVIERA1999
CADILLAC DEVILLE2000, 2001, 2002, 2003, 2004, 2005
CADILLAC SEVILLE1998, 1999, 2000, 2001, 2002, 2003, 2004
OLDSMOBILE AURORA1995, 1996, 1997, 1998, 1999
OLDSMOBILE AURORA2000
OLDSMOBILE AURORA2001, 2002, 2003
PONTIAC BONNEVILLE2000, 2001, 2002, 2003, 2004, 2005

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

Other bulletins for the same vehicles and component
150089004B2021-04-16. Service bulletin. Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component
016062004-05-28. Service bulletin. SERVICEABILITY OF THE UPPER MOUNT FOR REAR SHOCK ABSORBERS. *TT
0312012002-04-04. Service bulletin. FRONT STRUT NOISE CONDITION. *TT