# Service bulletin L\-TT\-0253\-18

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.

- Type: Service bulletin
- NHTSA id: 10153238
- Published by NHTSA: 2019\-02\-19
- Manufacturer's number: L\-TT\-0253\-18
- Manufacturer's date: 2018\-12\-18
- NHTSA component: EQUIPMENT

## NHTSA's summary

TT: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM \(telematics transceiver\) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10153238-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10153238-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories

## Vehicles listed

- 2018 to 2019 LEXUS NX300

JSON: [/v1/bulletins/10153238](/v1/bulletins/10153238)

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