Service bulletins for the 2004 Chevrolet Impala
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.
495 on file from NHTSA, as of 2026-10-19.
About C1235 on the 2004 Chevrolet Impala: 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: C1235 are shown. Show all
| 3853 | 2006-08-21. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. ABS LAMP ON AND CURRENT OR HISTORY DTCS C1223, C1224, C1227, C1228, C1234, AND/OR C1235. *TT |
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| 3583 | 2006-05-16. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. ABS LAMP ON AND CURRENT OR HISTORY DTCS C1233, C1224, C1227, C1228, C1234, AND/OR C1235. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.