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Service bulletins for the 2005 Cadillac STS

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.

626 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Differential are shown. Show all

Bulletins, newest first
10-04-20-001F2017-08-15. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. This technical bulletin provides a procedure to replace the rear differential fluid if the rear axle has a clunk or chatter noise on turns.
SB-10-04-20-001E2013-06-25. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. CADILLAC: REAR AXLE IS MAKING A CHATTER NOISE DURING TURNING. MAY ALSO MAKE A CLUNKING SOUND DURING TURNING AS WELL. *KB

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.