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Service bulletins for the 2021 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.

301 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
09-002-21-37702021-02-05. Service bulletin. ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL; EQUIPMENT. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer
01-003-21-37762021-02-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. Some vehicles may experience the CHECK ENGINE LIGHT ON with DTC P2610 and P2507 stored in memory after engine start and room fuse 15A (A) removed. P2610:00: Instrument cluster internal engine off timer performance problem. P2507:00: PCM battery voltage low input
SA2662021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. MAZDA Mobile start (MMS) cannot communicate with vehicle
MT-006-202020-12-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Some customers may complain about the following MAZDA CONNECT™ Temperature Warning message: • Display is too Hot. Screen performance may be decreased until it cools. The warning message displays when the MAZDA CONNECT™ screen temperature is above 176 degrees Fahrenheit (80 degrees Celsius).
09-036-20-37562020-12-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Some vehicles may exhibit a Connectivity Master Unit (CMU), a BLUETOOTH® hands-free unit or text messaging related concerns. To improve the handling of BLUETOOTH® hands-free and/or text messaging customer concerns, Mazda created a special service and parts exchange program as of February 2010.
SA-070-202020-11-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. APPLE CARPLAY / ANDROID AUTO FREQUENTLY ASKED QUESTIONS (FAQ): NOTE: The following vehicles are not equipped with Apple CarPlay / Android Auto, but it can be activated using MDARS. See Activation instructions on MGSS - Infotainment - MAZDA CONNECT Updates - Apple Carplay / Android Auto MDARS Activation Instructions
SA-063-202020-09-03. Service bulletin. ELECTRICAL SYSTEM. When performing vehicle services such as control unit software update, control unit registration/activation, CMU log data retrieval, etc., always use the GR8 battery charger SST to maintain battery voltage.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.