Service bulletins for the 2001 Saturn LS
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.
191 on file from NHTSA, as of 2026-10-19.
About P0135 on the 2001 Saturn LS: 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: P0135 are shown. Show all
| 040604008 | 2004-04-23. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. SERVICE ENGINE SOON (SES) LAMP ILLUMINATED WITH DTC P0135 HO2S HEATER CIRCUIT PERFORMANCE BANK 1 SENSOR 1 AND/OR DTC P0155 HO2S HEATER PERFORMANCE BANK 2 SENSOR 1. *MR THIS BULLETIN REPLACES PREVIOUS 04-06-04-008. *EH |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.