Service bulletins for the 2021 Kawasaki Z400
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.
2 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Engine are shown. Show all
| MC20-05 | 2021-01-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Some newly-released 2021 Kawasaki models require “service activation” before delivery to the customer. The main purpose of this is to record the "service activation" date of the vehicle. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.