ATTENTION:
GENERAL MANAGER

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PARTS MANAGER

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CLAIMS PERSONNEL

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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.

SERVICE MANAGER

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© 2023 Subaru of America, Inc. All rights reserved.

SERVICE BULLETIN
APPLICABILITY:
SUBJECT:

2019-2023 Crosstrek Hybrid

NUMBER: 19-01-26
DATE: 03/19/26

12v Inverter Connector Corrosion

REVISED: 03/26/26

INTRODUCTION:
This bulletin announces the repair procedure for the 12v terminal on the inverter to address concerns
regarding corrosion buildup. The 12v terminal and cable assembly are now available as a one-piece
design for repairing the inverter in rare cases where corrosion has developed after WRD-23 was
performed. If the customer concern is a result of corrosion on the 12v terminal on the inverter or a
damaged cable is found on the HV air conditioning cable, please follow the procedure outlined in this
bulletin. Note this repair is not appropriate in any cases where the WRD-23 recall is still incomplete.
REQUIRED TECHNICIAN TRAINING
Subaru technicians will be required to take and pass the WRD-23 12-Volt Inverter Connector
Corrosion Video and Post Test before performing the 19-01-26 service procedure. The video and
post test are currently available on STAR-U.
Technicians must also complete the following required WBT courses in STAR-U, before performing
the 19-01-26 service procedure. These WBT courses are currently available, and technicians are
encouraged to be completed prior to enrolling in the WRD-23 Volt Inverter Connector Corrosion
Video and Post Test.
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2019 Crosstrek Hybrid Introduction (13L301101W)

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2019 Crosstrek Hybrid Safety (13L301103W)

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2019 Crosstrek Hybrid Technical (13L301102W)

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2023 Subaru Solterra - Systems and Features WBT (80L200103W)

CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.

Subaru of America, Inc. is
ISO 14001 Compliant
ISO 14001 is the international standard for
excellence in Environmental Management
Systems. Please recycle or dispose of
automotive products in a manner that is friendly
to our environment and in accordance with all
local, state and federal laws and regulations.

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 1 of 31

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2023 Subaru Solterra - High Voltage Systems WBT (80L200104W)

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EV Power Down Video (20L000120W)

PART INFORMATION:
Part Description

Part Number

Qty

PRODCTN PRCHS
DWG

X1009AA100

1

PRODCTN PRCHS KIT (X1009AA100) Component Breakdown
Part Description

Qty

Image

Part Number

PRODCTN PRCHS DWG

1

10099AA100

COVER,CONVERTER

1

G927133010

BOLT, FLANGE

11

9010505065

COVER,HV CONVERTER

1

091X733010

CAP

2

9033916002

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 2 of 31

Additional One-Time Use Parts Required
Part Description

Qty

Image

Part Number

BOLT

2

010108450

BLIND RIVET

3

8057040009R

GASKET-EXHAUST

2

44616AA2919R

GSKT-EGR PIPE

1

14738AA3519R

GASKET(CR)

1

44022AA1239R

GASKET

1

44011SG0009R

SELF LOCK NUT M10

2

9023300119R

ANCHOR PROTR TMC

1

82677FL5009R

ANCHOR PROTR FFL

1

82677FL5109R

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 3 of 31

COVER-POWER CONN

2

33274AA0619R

REQUIRED TOOLS:
Part Description

Qty

Leak Detector (Essential Tool)
For inspecting air leak from the inverter with converter
assembly after replacing the 12V terminal

1

Image

Part Description

Part Number

Qty

WRD-23 LEAK TEST TOOL KIT

SOA635177

1

IMPORTANT: SOA635177 was automatically shipped 1 per retailer during the release of WRD-23.
WRD-23 Leak Test Tool Kit (SOA635177)
Part Description

Part Number

Qty

CONNECTOR HOLDER
(No. 1)

81911FL010

1

CONNECTOR HOLDER
(No. 2)

81911FL050

1

CONNECTOR HOLDER
(No. 3)

81911FL040

1

CONNECTOR HOLDER
(No. 4)

81911FL030

1

REPAIR TOOL
(No. 5)

99804AN030

1

FLANGE BOLT
(No. 6)

010406200

4

FLANGE BOLT
(No. 7)

010406120

4

Image

Details
For inspecting air leak from the inverter with converter assembly after replacing the 12V terminal

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 4 of 31

Part Description

Qty

Image

Details

Non-metallic Sealant Scraper

1

For removing sealant. (To prevent
any damage to the sealant surface,
DO NOT use metallic scraper)

12V External Power Supply

1

For supplying 12V power to the leak
detector.

Silicon Hose

1

To be used when performing leak
check (Inner Diameter: 7mm/0.3 in)

Spray Nozzle
(3M Cavity Wax Plus
Applicator Wand Kit or
general nozzle)

1

To be used with 3M Cavity Wax Plus
spray (3M# 7100088894)

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 5 of 31

Part Description

Qty

Insulated Hand Tools

1

For removing and installing bolts for
the high voltage components

1

To be used when removing and
installing the high voltage components

High Voltage Insulated
Gloves (Additional Information Provided Below)

Image

Details

For preventing static electricity from
electronic parts

Antistatic Mat
1

For preventing static electricity from
electronic parts

Antistatic Strap

Circuit Tester

1

For measuring the high voltage

Coolant Hose Cap

6

For preventing engine coolant dripping from the coolant hose

Hand Riveter

1

For installing the inverter/converter
cover

Wooden Blocks

1

To be used to support the inverter/
converter cover replacement

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 6 of 31

REQUIRED CHEMICALS FOR 12V TERMINAL REPLACEMENT:
Product Name

3M Cavity Wax Plus
(3M# 7100211448)

Three Bond 1207F (SOA868V9650)
Warranty Number SOA635336

Qty

Remarks

Appropriate
amount

For rust prevention

Appropriate
amount

Sealant

Image

HIGH VOLTAGE INSULATED GLOVE INFORMATION:
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New gloves and sleeves are marked with the date of manufacture/electrical test and are
acceptable for use 12 months from that date.

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If new gloves are first used within 12 months of the manufacture/electrical test date, recertification must occur 6 months from first use. The first use date should be recorded.

•

If the first use date is not known, the gloves/sleeves must be retested 6 months from the
electrical test date stamped on the glove/sleeve.

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 7 of 31

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All gloves must be inspected by the user for damage prior to each use.

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The gloves include a stamped date indicating when the rubber insulating gloves were
“originally or last tested electrically.” Rubber insulating gloves must be re-tested electrically
by a certified lab 6 months after first use. The lab will re-stamp the gloves with the new
“tested” date.

SERVICE PROCEDURE FLOW CHART:

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 8 of 31

COMPONENT DETAILS / CONFIGURATION:

Continued...
Bulletin Number: 09-01-26; Revised: 03/26/26

Page 9 of 31

PRECAUTIONARY INFORMATION:
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When working on high voltage systems, always wear high voltage insulated gloves.

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During disassembly and reassembly of the inverter/converter assembly, BE CAREFUL
not to cause or induce any static electricity.

•

ALWAYS place the inverter/converter assembly and any other removed electronic
components on an antistatic work mat after removal.

•