Service bulletins for the 2021 Cadillac XT4
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.
684 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Body and frame are shown. Show all
| 18NA306 | 2020-10-26. Service bulletin. EQUIPMENT; STRUCTURE:BODY. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.