# Service bulletin 11\-178\-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: 10130276
- Published by NHTSA: 2018\-03\-13
- Manufacturer's number: 11\-178\-18
- Manufacturer's date: 2018\-01\-30
- NHTSA component: STEERING:GEAR BOX \(OTHER THAN RACK AND PINION\)

## NHTSA's summary

6MT MODELS ONLY. This bulletin announces availability of ECM reprogramming files to optimize the ECM with improved diagnostic logic for DTC P0852 \(Park/Neutral Switch Input Circuit High\) detection. If the shifter is moved too fast, the gear change may not be properly detected by the ECM causing the P0852 to set.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10130276-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10130276-0001.pdf)

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

## Components

Steering, Steering gear

## Trouble codes named

P0852

## Vehicles listed

- 2018 SUBARU WRX

## Other bulletins for the same vehicles and component

- [4\-26\-20](/bulletins/10185065.md), 2021-01-05, Service bulletin: STEERING:GEAR BOX \(OTHER THAN RACK AND PINION\); POWER TRAIN. This bulletin describes a design change to the replacement hydraulic\-type steering gearbox assembly.

JSON: [/v1/bulletins/10130276](/v1/bulletins/10130276)

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