TSB: Infiniti SOS Alert System
This bulletin applies to 2020-2024 Infiniti Q50, 2020-2022 Q60 and 2020-2024 QX80 vehicles equipped with a factory installed SOS switch (located near the overhead map lamp and a wireless communication device called a Telematics Communication Unit (TCU). With an active NissanConnect Services subscription, the TCU communicates with the Nissan data Center to provide various security and convenience services.
When diagnosing DTC B2E1B-06 for “Automatic ECall” on an applied vehicle, if DTC B2E1B-06 is not “CRNT” in the IVC, do not replace the TCU. If the DTC is current, replace the TCU.