# Service bulletin ITB12021B

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: 10192069
- Published by NHTSA: 2021\-05\-10
- Manufacturer's number: ITB12021B
- Manufacturer's date: 2012\-11\-14
- NHTSA component: POWER TRAIN

## NHTSA's summary

IF YOU CONFIRM If the customer reports or has previously reported: Harsher than expected down shifts when coasting to a stop. Hesitation/lag when accelerating after coasting. Hesitation/lag or harsher than expected down shifts when coming to a stop and accelerating again \(rolling stop\). Engine rev matching during moderate to heavy braking. ACTION 1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM and TCM. See this bulletin for further detail.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10192069-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10192069-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2012 INFINITI M

JSON: [/v1/bulletins/10192069](/v1/bulletins/10192069)

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