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September 17, 2026 Service bulletin

Mazda Connected Services

Mazda technical service bulletin SA-042-26a for 2019-2026 Mazda MAZDA3, 2021-2027 Mazda CX-5 and 2021-2023 Mazda CX-9 and others.

Bulletin number
SA-042-26a
Component
Electrical system
Summary
Mazda Connected Services - Frequently Asked Questions (FAQ) This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-042/26 06/30/26 DESCRIPTION Frequently Asked Questions (FAQ) Index General Questions MAZDA CONNECT Indication Setup and Getting Started Dealer Processes Registration / Enrollment / Take-Over Customer Subscription Status WI-FI General Informatio Opening the TCU Communication Line WI-FI How-To Conditions for Remote Engine Start Will Not Function WI-FI Trial Period Conditions for Remote Engine Start Function Will turn engine OFF Interacting With The App TCU Communication Line Status Service Issues Educational Videos Troubleshooting Resources MyMazda App Error Codes Customer Opt-Out

Owners of these vehicles have filed 253 complaints in the electrical category.

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