# Service bulletin 18\-224\-22R

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: 10244908
- Published by NHTSA: 2023\-11\-06
- Manufacturer's number: 18\-224\-22R
- Manufacturer's date: 2023\-10\-12
- NHTSA component: EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT

## NHTSA's summary

This Service Information Bulletin is to inform you of the diagnosis procedure of the CP1/ CP1.5 Infotainment System when DTC B2256 is detected.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10244908-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10244908-9999.pdf)

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

## Components

Electrical system, Equipment and accessories

## Trouble codes named

B2256

## Vehicles listed

- 2023 to 2024 SUBARU ASCENT
- 2022 to 2024 SUBARU BRZ
- 2024 SUBARU CROSSTREK
- 2024 SUBARU IMPREZA
- 2020 to 2024 SUBARU LEGACY
- 2020 to 2024 SUBARU OUTBACK
- 2022 to 2023 SUBARU WRX

## Recalls for the same vehicles and component

- [26V436000](/recalls/nhtsa/26V436000.md), 2026-07-07: EQUIPMENT:OTHER:LABELS
- [2023607](/recalls/tc/2023607.md), 2023-11-09: Electrical
- [2023435](/recalls/tc/2023435.md), 2023-08-04: Electrical
- [23V551000](/recalls/nhtsa/23V551000.md), 2023-08-04: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [23V016000](/recalls/nhtsa/23V016000.md), 2023-01-23: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
- [22V473000](/recalls/nhtsa/22V473000.md), 2022-07-01: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); ELECTRICAL SYSTEM:WIRING
- [2019536](/recalls/tc/2019536.md), 2019-10-25: Accessories

## Other bulletins for the same vehicles and component

- [09\-141\-26](/bulletins/11037946.md), 2026-10-05, Service bulletin: ENGINE; ELECTRICAL SYSTEM. This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced acceleration, or lack of power when driving uphill or under heavy engine load.
- [07\-244\-26](/bulletins/11037945.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This Bulletin provides a repair procedure for increased dark current and unintended battery discharge that occurs in a small number of unique cases.
- [SubaruNet Announcement \(M](/bulletins/11037943.md), 2026-10-05, Other: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
- [SubaruNet Announcement \(T](/bulletins/11037942.md), 2026-10-05, Other: POWER TRAIN; ELECTRICAL SYSTEM. This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
- [18\-244\-26](/bulletins/11037938.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. "This Bulletin announces additional troubleshooting steps for the following DTCs: DTC C1956: RH Actuator Circuit DTC C1957: LH Actuator Circuit"
- [15\-333\-25R](/bulletins/11037929.md), 2026-10-05, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin.
- [15\-322\-25R](/bulletins/11037928.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. In the interest of customer satisfaction, Subaru of America, Inc. \(SOA\) is extending the New Car Limited Warranty coverage for the CP1 \& Gen 3.1 Head Unit used in the listed models and model years to \(8\) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system. This is an revised version of the original bulletin.
- [15\-304\-22R](/bulletins/11037927.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the original bulletin.
- [12\-258\-25R](/bulletins/11037925.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be used when working with sunroof seals and sunroof frame assemblies on Ascent models. This is an revised version of the original bulletin.
- [15\-343\-26](/bulletins/11037920.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. "This bulletin announces a design change to the cord assembly that connects the Center Infotainment Display \(CID\) to the CCU, addressing reports of CID screen flickering."

JSON: [/v1/bulletins/10244908](/v1/bulletins/10244908)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2018-224-22R&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10244908&vehicle=Service%20bulletin%2018-224-22R)