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Service bulletin 11-200-20R

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10175989
Published by NHTSA2020-06-02
Manufacturer's number11-200-20R
Manufacturer's date2020-05-06
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

This bulletin announces the availability of reprogramming files to optimize the Engine Control Module (ECM) for hard starting in sub-freezing temperatures, DTC P0400, and surging in high altitudes.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Exhaust and emissions, Software

Trouble codes named

P0400

Vehicles listed
SUBARU CROSSTREK2018, 2019, 2020
SUBARU FORESTER2019, 2020
SUBARU IMPREZA2017, 2018, 2019, 2020
SUBARU LEGACY2015, 2016, 2017, 2018, 2019, 2020
SUBARU OUTBACK2015, 2016, 2017, 2018, 2019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
21V2640002021-04-15. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM:IGNITION; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
19V7430002019-10-18. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:IGNITION
18V7730002018-11-01. ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
09-103-232023-08-02. Service bulletin. This bulletin the announces diagnostic procedures and availability of new Engine Control Module (ECM) reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sensor Circuit Range/Performance) detection.
15-236-18R2023-07-03. Service bulletin. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.
16-139-222022-08-02. Service bulletin. The WRK-21 recall includes TCM reprogramming to prevent CVT chain slip. If, during the recall inspection, a vehicle is confirmed to have already experienced severe enough CVT chain slip, the CVT assembly will be replaced.
15-291-222022-03-04. Service bulletin. Going forward when a customer’s vehicle is equipped with a DCM that does not have Software version ID DCM_06.00.17_20190816 installed and they wish to subscribe to Starlink Telematics Service, the DCM must be replaced.
15-246-19R2022-02-04. Service bulletin. This bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the 2020-22 Legacy and Outback.
WTB-63R2020-11-05. Service bulletin. Subaru of America, Inc. (Subaru) is initiating a service campaign for all 2015 model year Legacy and Outback vehicles. Subaru has determined that vehicles affected by this Service Program require reprogramming of the Electronic Parking Brake (EPB) system.
Subaru Starlink2020-10-05. Service bulletin. Update your STARLINK Multimedia Software and Navigation Maps.
Subaru Starlink2020-10-05. Service bulletin. Update for STARLINK Multimedia Software and Navigation Maps.
Subarunet Announ2020-09-04. Service bulletin. Concern with latest 2020 MY Legacy / Outback Gen 4 CP1 FOTA Software Update.
16-130-202020-09-04. Service bulletin. This bulletin announces availability of reprogramming files to optimize the Transmission Control Module (TCM) used in the TR580 and TR690 CVT.