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henrykoch32

Mirai Infotainment System Issue

I have a vexing issue concerning my 2020 Toyota Mirai, which is electric. I can no longer connect my smartphone to the infotainment system, and there's an error stored. Could this be related to electrical faults, or a deeper software issue affecting the suspension or transmission systems indirectly? My mileage is at 67190 km.

Summary of the thread

The issue with the 2020 Toyota Mirai's infotainment system was an inability to connect a smartphone, accompanied by a generic communication error. Initial troubleshooting efforts, such as re-establishing the Bluetooth connection, were unsuccessful. The problem was suspected to be either an electrical fault or a software issue. A visit to a certified Toyota workshop revealed that the problem was due to an incorrect pairing, which was resolved with a software reset.

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4 comment(s)

gretamueller37

The symptoms you describe point towards a potential communication issue, possibly from an incorrect pairing sequence or outdated software. Have you tried deleting the existing pairing profile from both your smartphone and the Mirai's system, then re-establishing the connection? Is the error message a generic communication fault, or does it specify a particular subsystem?

henrykoch32 (community.author)

Yes, I've tried to delete and re-establish the Bluetooth pairing multiple times, following the owner's manual. The issue persists. The error message is unspecific, indicating a general communication malfunction within the infotainment system but providing no further detail. Could this suggest a more fundamental electrical fault beyond just the pairing itself?

gretamueller37

The persistence despite your troubleshooting and the generic error code suggest a deeper issue than a simple pairing mishap. It's plausible that an underlying electrical fault is interfering with the communication protocols. Given the Mirai's systems, I recommend a visit to a certified Toyota workshop. They possess the diagnostic tools necessary to pinpoint the root cause, be it a software glitch, a hardware component failure, or a wiring issue. Get it checked before it potentially impacts more critical drivetrain or suspension functions.

henrykoch32 (community.author)

I booked an appointment with a certified Toyota workshop. It was indeed an incorrect pairing with the end device that necessitated a software reset. The repair cost was 45€.

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TOYOTA

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MIRAI