# Service bulletin TJ34142.4.0\-2018

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: 10155164
- Published by NHTSA: 2019\-03\-25
- Manufacturer's number: TJ34142.4.0\-2018
- Manufacturer's date: 2019\-01\-03
- NHTSA component: STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM

## NHTSA's summary

If error message ?Steering Assistance Temporarily Reduced? is displayed in the DIM while cranking and DTC PSCM\-U30031C is stored, follow advice under Service section below. This is just a message and steering assistance is not affected. The condition could occur during start/stop activations. After cranking the steering assistance become normal and the error message disappears. The DTC indicate that one of the internal switches in the BCSM may be in the wrong position when cranking \(during start/stop\) and it could result in symptom similar to poor main battery state of charge \(SOC\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10155164-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10155164-9999.pdf)

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

## Components

Steering, Power steering

## Trouble codes named

U3003

## Vehicles listed

- 2019 VOLVO S60
- 2019 VOLVO S90
- 2019 VOLVO V60
- 2019 VOLVO V60CC
- 2019 VOLVO XC60
- 2016 VOLVO XC70
- 2019 VOLVO XC90
- 2019 VOLVO XC90H

JSON: [/v1/bulletins/10155164](/v1/bulletins/10155164)

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