NHTSA ID Number: 11034251
Manufacturer Communication Number: 06-94-25R
TSB/Document Date: 2026-07-02
Summary
This bulletin announces availability of new Electronic Brake Booster (EBB) & Vehicle Dynamics Control (VDC) module reprogramming files developed to address cases of a cracking-type noise heard under the dashboard in the brake pedal area when the brake pedal is released. (This is an revised version of the original bulletin.)
ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
q
CLAIMS PERSONNEL
q
IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE MANAGER
q
© 2025 Subaru of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY: 2022-25MY Forester
2023-25MY WRX
2022-25MY Legacy & Outback
2024MY Impreza & Crosstrek Including
Wilderness
SUBJECT:
NUMBER: 06-94-25R
DATE: 02/24/25
REVISED: 06/19/26
Reprogramming Files / Crack-Type Sound
Emitting From Brake Booster
INTRODUCTION:
This bulletin announces availability of new Electronic Brake Booster (EBB) & Vehicle Dynamics
Control (VDC) module reprogramming files developed to address cases of a cracking-type noise
heard under the dashboard in the brake pedal area when the brake pedal is released. In the EBB,
motion of the output control rod which contacts the master cylinder piston is electronically
controlled. If the output control rod returns too quickly when the driver releases the brake pedal, an
excessive gap is created resulting in the cracking-type sound. This symptom may also occur when
releasing the brake pedal after the engine restarts during Auto Start Stop activation. The new files
contain enhanced EBB and VDC logic to synchronize the motion of the brake booster output control
rod and master cylinder piston. If this symptom is confirmed, reprogram the EBB and VDC using the
procedures outlined in this bulletin.
PRODUCTION CHANGE INFORMATION:
The new EPB and VDC logic has been incorporated into vehicle production as per the table below.
Applicable Vehicle
Starting VIN
IMPREZA SIA
R3799594
IMPREZA Japan
RH360800
CROSSTREK SIA
R3799594
CROSSTREK Japan
RH360800
LEGACY
S3011440
OUTBACK
TBD
S8800634
FORESTER
SH401119
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: 06-94-25R; Date: 06/15/26
Page 1 of 6
PFC FILE INFROMATION:
EBB PFC Files
MY
Model
File Description
Old CID/ROM ID
New CID/ROM ID
2024
Impreza
26400FN_014_04C.pfc
B220240105
B220240104
B220240103
2024
Crosstrek
B220240106
2023-25
Legacy &
Outback
26400AN102_26400A
N112_26400AN09C_2
6400AN12D.pfc
B120230100
B120230102
B120230103
B120230104
2023
26400VC093_103.pfc
B420230100
B420230101
B420230102
B420230103
2024-25
26400VC112_122.pfc
B420240101
B420240102
EBB PAK Files
MY
Model
Files Description
Old CID/ROM ID
New CID/ROM ID
2022
WRX
26400VC007_084_014.
pk2
FDC6AF4D
B420200107
2022
Forester
26400SJ012.pk2
170A000D
B320210103
2023
Forester
26400SJ022.pk2
5017359A
B320240102
2024-25
Forester
26400SJ032.pk2
1B1A5DC0
B320240102
File Description
Old CID/ROM ID
New CID/ROM ID
A220240104
A220240304
A220240404
A220240504
A220240604
A220240704
VDC PFC Files
MY
Model
2024
Impreza
27596FN032.pfc
A220240103
A220240303
A220240403
A220240503
A220240603
A220240703
2024
Crosstrek
Wilderness
27596FN01B.pfc
A220241803
A220241804
27596VC011.pfc
A420220801
A420220901
A420221001
A420221101
A420221701
A420221801
A420221901
A420223101
A420223301
A420223601
A420223701
A420220802
A420220902
A420221002
A420221102
A420221702
A420221802
A420221902
A420223102
A420223302
A420223602
A420223702
2023
WRX
Continued...
Bulletin Number: 06-94-25R; Date: 06/15/26
Page 2 of 6
2024
27536VC051.pfc
A420241700
A420243100
A420241800
A420243600
A420241900
A420243300
A420243700
A420240100
A420240200
A420240300
A420240800
A420241000
A420243800
A420243900
A420240900
A420241100
A420244000
A420244800
A420241701
A420243101
A420241801
A420243601
A420241901
A420243301
A420243701
A420240101
A420240201
A420240301
A420240801
A420241001
A420243801
A420243901
A420240901
A420241101
A420244001
A420244801
2023
Legacy &
Outback
27596AN02B.pfc
A120231000
A120231001
2024
Legacy &
Outback
27596AN03B.pfc
A120241000
A120241001
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
2024 Crosstek Non Wilderness Models ONLY:
•
Replace the VDC control module with the newest part available.
NOTE: This step will change to reprogramming in the future when the required files
become available.
•
Reprogram the EBB Control Module following the normal SSM5-R procedure.
•
Detailed information regarding the SSM5-R reprograming procedures can be found in TSB
14-28-21R.
All Other Models:
•
Reprogram the EBB and/or VDC Control Module following the normal SSM5-R and/or
Flashwrite procedure.
•
Detailed information regarding the SSM5-R reprograming procedures can be found in TSB
14-28-21R.
BATTERY CHARING INFORMATION:
Subaru of America, Inc. (SOA) highly recommends utilizing either the Subaru Midtronics DCAContinued...
Bulletin Number: 06-94-25R; Date: 06/15/26
Page 3 of 6
8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-1100 Diagnostic Battery
Charger to the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control module
is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the battery is fully
charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode,
and have the battery voltage stabilized and ready for reprogramming.
NOTES:
•
For instructions on using the Power Supply Mode, reference the applicable User Manual for
the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR81100 Diagnostic Battery Charger on STIS
•
Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all
switched OFF before setting up the charger for Power Supply Mode.
•
Select the correct battery type (Enhanced Flooded, Flooded, Gel, AGM or AGM Spiral).
•
Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have
different CCA ratings. Always confirm the battery’s CCA rating before proceeding.
•
If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to
13.5 Volts.
•
DO NOT connect the DST-i or DST-010 until the Power Supply mode function has completed
its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on
the display.
•
Once Power Supply Mode reaches a steady 13.5 Volts, connect the DST-i or DST-010 to the
OBD connector and proceed with initiating the normal SSM5-R reprogramming process.
•
Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage
rises beyond 14 Volts while programming is in process, the procedure will abort. This can
indicate a need to test or charge the vehicle battery before any further attempt at programming
is made.
•
ALWAYS set the power supply voltage to 13.5 Volts when using Power Supply Mode. NEVER
turn the ignition switch on when charging at voltages 15 Volts or higher.
REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge
the battery fully before proceeding to reprogram the vehicle while using the Power Supply Mode.
NOTE: Control module failures resulting from battery discharge during reprogramming are not a
matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose
per the procedure outlined in the applicable Service Manual.
Bulletin Number: 06-94-25R; Date: 06/15/26
Page 4 of 6
WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited Warranty period or covered by an active Subaru
Added Security Gold plan, this repair may be submitted using the following claim information:
Labor Description
Labor Operation #
Labor Time
Fail Code
BRAKE BOOSTER & VDC CONTROL MODULE
REPROGRAMMING*
A567-486
1.0H
QCZ-48
*Both the Brake Booster CID and VDC Module CID will be required for claim processing. Includes
noise testing.
2024 Crosstrek Non Wilderness Models ONLY:
Labor Description
Labor Operation #
Labor Time
Fail Code
BRAKE BOOSTER & VDC CONTROL MODULE
REPLACEMENT**
A567-586
2.0H
QCZ-48
**Brake Booster CID will be required for claim processing. Includes Noise testing and brake fluid
bleeding.
IMPORTANT: Always note the original Calibration Identification number (CID) / ROMID the
vehicle came in with on the repair order before reprogramming and, make sure to list the NEW CID /
ROMID for any newly installed programming (as confirmed from the actual control module AFTER
installation). The NEW CID / ROMID MUST also be noted on the repair order as this information is
required for entry in the Miscellaneous Detail field during claim submission. These numbers can be
read using SSM5-R.
NOTE: The pfc file listings provided in this bulletin are the latest available at the time of publishing.
Updates are often released thereafter without revision to the original bulletin. For this reason, it is
critical to always have the latest version of Select Monitor software installed on your system. You
can confirm if a later version is available by entering the CID listed in this bulletin into SSM5-R. If a
newer CID is shown as available in SSM5-R, reprogram using that file.
IMPORTANT: Always note the original Calibration Identification number (CID) / ROMID the
vehicle came in with on the repair order before reprogramming and, make sure to list the NEW CID /
ROMID for any newly installed programming (as confirmed from the actual control module AFTER
installation). The NEW CID / ROMID MUST also be noted on the repair order as this information is
required for entry in the Miscellaneous Detail field during claim submission. These numbers can be
read using SSM5-R.
Continued...
Bulletin Number: 06-94-25R; Date: 06/15/26
Page 5 of 6
NOTE: The pfc file listings provided in this bulletin are the latest available at the time of publishing.
Updates are often released thereafter without revision to the original bulletin. For this reason, it is
critical to always have the latest version of Select Monitor software installed on your system. You
can confirm if a later version is available by entering the CID listed in this bulletin into SSM5-R. If a
newer CID is shown as available in SSM5-R, reprogram using that file.
IMPORTANT REMINDERS:
•
SOA strongly discourages the printing and/or local storage of service information as previously
released information and electronic publications may be updated at any time.
•
Always check for any open recalls or campaigns anytime a vehicle is in for servicing.
•
Always refer to STIS for the latest service information before performing any repairs.
Continued...
Bulletin Number: 06-94-25R; Date: 06/15/26
Page 6 of 6
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Ideal for hydraulic and disc brakes
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
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TSB/Document ID: 06-94-25R
Replacement Service Bulletin Number:
MFR Communication Date: 2026-06-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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