Service bulletins for the 2003 Oldsmobile Alero
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.
452 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Transmission and driveline are shown. Show all
| 020730050 | 2003-03-29. Service bulletin. POWER TRAIN. ENGINEERING CHANGES TO THE VALVE BODY, PRESSURE REGULATOR VALVE, 2-3 ACCUMULATOR VALVE AND BORE FOR 2002-2003 MODEL YEAR 4T45E TRANSAXLES AND SUBSEQUENT OVERHAUL PROCEDURES WHICH AFFECT 1995-2001 MODEL YEAR TRANSAXLES. *TT |
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| 020730044 | 2003-02-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ERRATIC SPEEDOMETER, ERRATIC SHIFTING, CRUISE CONTROL INOPERATIVE, DIAGNOSTIC TROUBLE CODE P0502, P0758, P1860 SET. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.