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Service bulletin 032503

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 id10001865
Published by NHTSA2003-07-23
Manufacturer's number032503
Manufacturer's date2003-03-25
NHTSA componentSUSPENSION:FRONT:WHEEL BEARING

NHTSA's summary

FRONT WHEEL BEARING REPLACEMENTS DUE TO AN ANTI-LOCK BRAKE SYSTEM (ABS), TRACTION CONTROL SYSTEM (TCS) OR SERVICE ENGINE SOON (SES) LIGHT ON ASSOCIATED WITH FRONT WHEEL SPEED SENSOR DIAGNOSTIC TROUBLE CODES P1221, P1222, P1225, 26, C1232, OR C1233. 2001, 2002 AND 2003 MODELS. *TT *JB

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, Wheel bearing

Trouble codes named

C1232, C1233, P1221, P1222, P1225

Vehicles listed
BUICK CENTURY
BUICK REGAL
CHEVROLET IMPALA1999
CHEVROLET MONTE CARLO
CHEVROLET U VAN
CHEVROLET VENTURE
OLDSMOBILE SILHOUETTE
PONTIAC MONTANA

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