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.
By type
By component
By trouble code
Only bulletins with component: Wheel nuts and studs are shown. Show all
| 06282004 | 2005-04-11. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS. LEFT AND RIGHT FRONT WHEEL ASSEMBLIES IN WHICH THE TWO BOLTS THAT ATTACH THE FRONT BRAKE CALIPER TO THE STEERING KNUCKLE WERE NOT TIGHTENED ADEQUATELY. CAMPAIGN 04094 IS SCHEDULED. *TT |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.