Service bulletins for the 2020 Mazda MX-5
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.
253 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| SA-046-19 | 2019-11-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. On the 2019 Mazda3 (BP) and and all 2020 Mazda vehicles (except CX-3), the CR2032 button cell battery is required for the new type remote transmitter. If it is mistakenly replaced with the conventional CR2025 used in the previous type remote transmitter, it may cause a malfunction. Verify the button cell battery type before replacing it. |
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| SA-045-19 | 2019-11-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Currently, Mazda does not have a way to cut the auxiliary keys for the new style remote transmitter as they use a different key code than the previous transmitter key. Follow the repair procedure if one or both auxiliary keys are lost: |
| SA-042-19 | 2019-10-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. NOTE: Before proceeding: Confirm that the Connectivity Master Unit (CMU) is updated to the latest software version. Go to MGSS - Infotainment - MAZDA CONNECT Updates, Confirm that the customers device is updated to the latest software version. Apple Carplay/Android Auto FAQ, go to SA-001/19. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.