# Service bulletin S\-SB\-0008\-16

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: 10132874
- Published by NHTSA: 2018\-04\-02
- Manufacturer's number: S\-SB\-0008\-16
- Manufacturer's date: 2016\-10\-20
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

TSB: Some 2012 ? 2013 model year iQ vehicles may exhibit one or more of the following conditions: \* Rough idle condition. \* Idle speed momentarily drops at idle. \* MIL ?ON? with one or more of the following DTCs: P1603, P1604 and/or P1605. These may be caused by excessive carbon build\-up on piston head. Follow the Repair Procedure in this Service Bulletin to address this condition

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10132874-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10132874-0001.pdf)

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

## Components

Engine

## Trouble codes named

P1603, P1604, P1605

## Vehicles listed

- 2012 to 2013 SCION IQ

JSON: [/v1/bulletins/10132874](/v1/bulletins/10132874)

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