Service bulletins for the 2004 Chevrolet Malibu
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.
644 on file from NHTSA, as of 2026-10-19.
About P0621 on the 2004 Chevrolet Malibu: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0621 are shown. Show all
| 01649 | 2004-06-29. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THE CONDITION IA A SHORT FLASH OF THE BATTERY LIGHT AND DIAGNOSTICS TROUBLE CODE (DTC) P0621 AS A HISTORY CODE. *MJ |
|---|---|
| 01649 | 2004-06-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 3.5L LX9 ENGINE DIAGNOSTIC TROUBLE CODE P0621.*MR |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.