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November 26, 2018 Service bulletin

Whistle noise transmitted to call recipient when using bluetooth® hands-free phone feature

Infiniti technical service bulletin ITB18-042 for 2013 Infiniti M37, 2014-2017 Infiniti Q70 and 2013 Infiniti M56 and others.

Bulletin number
ITB18-042
Component
Equipment: electrical
Summary
2013 M AND 2014-2017 Q70; WHISTLE NOISE TRANSMITTED TO CALL RECIPIENT WHEN USING BLUETOOTH® HANDS-FREE PHONE FEATURE IF YOU CONFIRM While using the Bluetooth® Hands-Free Phone Feature: - The call recipient (the person receiving the phone call) hears a whistle noise through their phone?s speaker during the call. - The whistle noise is not heard by the call sender (Infiniti customer) during the call. - The whistle noise increases when the engine RPM of the call sender?s vehicle is raised. ACTION Repair the related electrical harness wiring at the Telematics Control Unit (TCU).

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