Service bulletins for the 2020 Mazda Mazda6
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.
364 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Manual transmission are shown. Show all
| 05-001-20-3699 | 2020-07-02. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. Some customers may complain of a shift shock felt when shifting into 3rd, 5th and/or R range with no A/T related DTC stored. The symptom can be temporarily repaired by A/T initial learning procedure, but may recur after multiple driving cycles. Applicable situations: • Shifting up: 2-3, (4-5) • Shifting down: 4-3, (6-5) NOTE:(4-5) and (6-5) are felt more than others due to the gear ratio. • Shifting into R: D-R, N-R, P-R. Improper control logic of the TCM may cause improper learning of R-3-5 brake engaging speed during certain driving situations. To correct this concern, the control logic of the TCM has been modified. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.