Service bulletins for the 2018 Mazda Mazda3
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.
462 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Manual transmission are shown. Show all
| 05-003-18-3460a | 2018-08-20. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. Some customers who drive at elevations higher than 3,300 ft (1,000 m) may complain of a shift shock felt when shifting into 3rd, 5th and/or Reverse with no AT related DTCs stored. The symptom can be temporarily repaired using the AT initial learning procedure, but may recur after multiple driving cycles. Applicable situations: Shifting up: 2-3 or 4-5 Shifting down: 4-3 or 6-5 NOTE: Shifting from 2-3 or 4-3 is more likely to be felt due to the gear ratio. Shifting into Reverse: D-R, N-R or P-R Improper control logic of the TCM may cause improper learning of R-3-5 brake engaging speed when the vehicle is driven at high elevations. To correct this issue, 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.