NHTSA ID Number: 11009699
Manufacturer Communication Number: 16-150-24R
TSB/Document Date: 2024-11-04
Summary
This bulletin announces availability of new reprogramming files developed to address symptoms which a jerk or judder sensation can be felt from the powertrain during braking with air conditioning on, or a shudder felt from the powertrain along with a screeching type of sound.
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
© 2024 Subaru
of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY: 2020-24MY Legacy 2.4L
2020-24MY Outback 2.4L
2019-24MY Ascent
2022-24MY WRX
2022-25MY Outback Wilderness
SUBJECT:
NUMBER: 16-150-24R
DATE:
09/13/24
REVISED:
10/31/24
Transmission Control Module (TCM) /
Software Enhancement
INTRODUCTION:
This bulletin announces availability of new reprogramming files developed to address the two
symptoms described below:
SYMPTOM 1: A jerk or judder sensation felt from the powertrain during braking with the air
conditioning on.
SYPMTOM 2: A shudder is felt from the powertrain along with a screeching type of sound.
NOTE: Both of these symptoms are not related with a fault code.
The new files contain enhanced software optimizing input clutch application along with enhanced
hydraulic pressure control during braking/deceleration. On some model applications, the
Transmission Control Module (TCM) will require replacement along with a final reprogramming (if
applicable). If a customer reports either of the symptoms described above and their vehicle is within
the VIN range listed below, follow the procedures outlined within this bulletin.
PRODUCTION CHANGE INFORMATION:
The new software has been incorporated into vehicle production as per the table below.
Model
Starting VIN
Outback
TBD
Legacy
N/A
Ascent
R3439833
WRX
R8807951
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: 16-150-24R; Revised: 09/31/24
Page 1 of 9
SYMPTOM APPLICATION:
Model Year
Model
2023
2024
2025
LEGACY
1&2
1&2
N/A
OUTBACK
1&2
1&2
N/A
OUTBACK WILDERNESS
1&2
1&2
2
ASCENT
1&2
1&2
N/A
WRX
2
2
N/A
PFC FILE INFORMATION:
Model
MY
Specification
File Description
Old Part #
New CID
New Rom ID
23
2.4L DIT CVT
30919AJ70C.pfc
30919AJ70A
30919AJ70B
Z1FEC73100L
A8FEC73100
24
2.4L DIT CVT
30919AK09E.pfc
30919AK09D
A917550176L
A917550176
23
2.4L DIT CVT
30919AJ71C.pfc
30919AJ71A
30919AJ71B
Z1FEF73100L
A8FEF73100
24
2.4L DIT CVT
30919AK10E.pfc
30919AK10D
A917770176L
A917770176
2.4L DIT CVT
30919AJ72C.pfc
30919AJ72A
30919AJ72B
Z18EF73100L
A88EF73100
2.4L DIT CVT
30919AK11E.pfc
30919AK11D
A917772176L
A917772176
2.4L DIT CVT
without CVTF
cooler
30919AJ79C.pfc
30919AJ79A
30919AJ79B
M3FEE70000L
04FEE70000
2.4L DIT CVT
with CVTF
cooler
30919AJ80C.pfc
30919AJ80A
30919AJ80B
M3FEF70000L
04FEF70000
2.4L DIT CVT
with CVTF
cooler
30919AK46C.pfc
30919AK46B
L4FEE70000L
05FEE70000
LEGACY
OUTBACK
23
OUTBACK
WILDERNESS
24-25
23
ASCENT
24
Continued...
Bulletin Number: 16-150-24R; Revised: 09/31/24
Page 2 of 9
Model
MY
Specification
File Description
Old Part #
New CID
New Rom ID
2.4L DIT CVT
with CVTF
cooler
30919AK221.pfc
30919AK220
G58ED60000L
228ED60000
2.4L DIT CVT
without CVTF
cooler
30919AK211.pfc
30919AK210
G58EC60000L
228EC60000
2.4L DIT CVT
with CVTF
cooler
30919AK421.pfc
30919AK420
23175A6670L
23175A6670
23
WRX
24
PAK FILE INFORMATION:
Model
MY
19
19
19
Specification
2.4L DIT CVT
without CVTF
cooler (air cool)
2.4L DIT CVT
with CVTF cooler
(air cool)
2.4L DIT CVT
without CVTF
cooler (air cool)
File Description
Old Part
Number
Decryption
Keyword
New CID
30919AF98J.
pak
30919AF98D
30919AF98E
30919AF98F
30919AF98G
30919AF98H
30919AK94A
8130B700
R83EE200
30919AF99J.
pak
30919AF99D
30919AF99E
30919AF99F
30919AF99G
30919AF99H
30919AK95A
F807B512
R83EF200
30919AH13K.
pk2
30919AH13E
30919AH13F
30919AH13G
30919AH13H
30919AH13J
30919AK96A
9F55F789
Q93EE300
30919AH14K.
pk2
30919AH14E
30919AH14F
30919AH14G
30919AH14H
30919AH14J
30919AK97A
A7187EA9
Q93EF300
30919AJ53E.
pk2
30919AJ53A
30919AJ53B
30919AJ53C
30919AJ53D
30919AL06A
F060B30D
N2FEE900
30919AJ54E.
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TSB/Document ID: 16-150-24R
Replacement Service Bulletin Number:
MFR Communication Date: 2024-10-31
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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