Service bulletins for the 1990 Mitsubishi Sigma
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.
6 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Body and frame are shown. Show all
| TSB-13-42A-002 | 2020-02-11. Service bulletin. STRUCTURE. This Technical Service Bulletin updates the door adjustment procedure in the Body Section of the applicable service manuals. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.