NHTSA ID Number: 11027996
Manufacturer Communication Number: 15-305-22R
TSB/Document Date: 2026-02-02
Summary
The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in the models listed.
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TSB/Document ID: 15-305-22R
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 12 of 80
4c) The screen below will be displayed.
4d) Insert reprogramming USB into the USB port and press OK.
NOTE: If after plugging in the USB, the screen displays a Software Loading Unsuccessful
message, confirm the USB device has been properly formatted and the software on the device
matches the system being reprogrammed (example: Base software is being used to update a Base
system) and retry.
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Bulletin Number: 15-305-22R; Revised: 01/20/26
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If you get the message Software Update Incomplete as shown below, please don’t replace the
hardware but retry updating the software according to the instructions in Appendix 6.
4e) The screen below will be displayed. Press OK to start the software update.
NOTE: The actual software version displayed will be different from the picture shown below.
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Software Version Table
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Bulletin Number: 15-305-22R; Revised: 01/20/26
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4f) Once the update begins, the screen below will be displayed with a progress bar. It takes about 15
to 20 minutes for the update to complete.
VERY IMPORTANT: NEVER turn off the ignition while the software update is in process.
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Bulletin Number: 15-305-22R; Revised: 01/20/26
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4g) When the software update is complete, the following screen will be displayed (the actual
software version will be different).
IMPORTANT NOTE:
On rare occasions a “Software Update Incomplete” message may appear in this step which occurs
due to a bug in the software update procedure. Proceed to Step 4i below to confirm the software
version has been updated to the latest version.
4h) Select OK in the screen above then remove the H/U reprogramming USB from the USB port.
4i) Turn the Ignition OFF, open the driver’s door then close the driver’s door.
4j) Wait for 3 minutes, then turn the ignition ON.
4k) Access Dealership Mode following steps provided item 4a and using the tables below, confirm
the software update completed successfully.
NOTE: The new Software Version number must be entered when prompted at claim entry.
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Software Version Table
4l) Turn the ignition OFF, open the driver’s door then close the driver’s door to complete the
procedure.
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Bulletin Number: 15-305-22R; Revised: 01/20/26
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Appendix 4
Perform the software update by SSM5-R and USB
REPROGRAMMING BY SSM5 FOR IMPREZA/CROSSTREK 24-26MY AND WRX 2425MY AND OUTBACK/LEGACY 25MY AND FORESTER 25-26MY
4-SSM5-a. Introduction
For Impreza/Crosstrek 24-26MY and WRX 24-25MY and Outback/Legacy 25MY and Forester 2526MY it is required to use SSM5-R to access Software Update setting in Dealership Mode Menu.
4-SSM5-b. Preparation
It is necessary to perform the reprogramming work with the Ignition ON and Engine OFF. Preferably,
it is also recommended to hook up a battery charger to the battery to maintain consistent voltage in
the electric circuits of the vehicle.
If the vehicle is Automatic (CVT) model, shift the select lever to N range and apply parking brakes
(EPB). With the gear in P range, the ignition switch is automatically turned off after about 1
hour.
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Outline of the preparation steps:
•
Prepare USB flash drive to store software update files per the instructions in STEP 2 page 5.
•
Prepare an interface to connect the vehicle with the PC loaded with SSM software.
•
Install “Cloud Connector” to the PC.
•
Connect DST-i between the vehicle and the laptop to sync-up SSM5 with the vehicle.
•
Refer to TSB 14-28-21 “New Software Reprogramming Procedures / SSM5-R” for the setup
and configuration details with SSM5.
•
4-SSM5-c. Execution
i. Follow TSB 14-28-21 “New Software Reprogramming Procedures / SSM5-R” STEP
1- STEP 11 to connect the vehicle and the laptop with SSM5 access. When vehicle
information acquisition is completed, a list of on-board systems is displayed. Confirm that
either one of the two reprogramming availability option on the Cockpit Control Unit is
marked “Available” and click on it. See below.
When you have multiple items listed, please select the one applicable to TSB 15-305-22 / Ver 6.0 as
illustrated in the picture below.”
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Bulletin Number: 15-305-22R; Revised: 01/20/26
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ii. Insert the USB flash drive containing the update data into the vehicle’s USB port and click
on [Start Reprogramming] to begin the reprogramming process.
iii. Follow TSB 14-28-21 “New Software Reprogramming Procedures / SSM5-R” STEP 12 STEP 15 to start the software update.
iv. The following progress bar will be displayed briefly (for a few seconds), and then it will
quickly reach 100% and switch to the next screen.
IMPORTANT NOTE: In rare cases when the CCU does not complete the USB authentication check
in time resulting in the message box below.
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This is not to be confused with a typical USB verification failure due to data mismatch.
The recovery steps are outlined below.
•
Perform a soft reset of the CP1 by holding down the CID volume knob. Please leave USB
Drive connected.
•
Once the CP1 has restarted, retry step ii on the previous page and then press the “Start
Reprogramming” button. Please wait for 2 minutes after CP1 has restarted, before press the
“Start Reprogramming” button.
•
If the same failure is encountered again, please proceed with the diagnostic of failure by
checking the USB drive data integrity.
If additional assistance with diagnostic is required, please follow TSB 15-304-22 for the guideline.
Please make sure following essential details are available for analysis.
1. Data log
2. Confirm you have used USB Flash drive from the list recommended by TSB in Appendix 1.
1. If not, please re-test using appropriate USB Flash drive.
2. Confirm that the USB Flash drive is recognized in Factory Mode, if not test multiple USB
3. Flash drives and perform diagnostic to verify USB port is operational.
4. Details for all USB Flash drives (model and make)
5. Directory tree showing the data stored on each drive.
When the following screen is displayed, the software update starts within the CCU.
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At that time CID display changes to show software installation details and progress bar. Wait until
the CID screen displays “Software Update Complete”. See below.
Software Version Table
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v. After “Software update complete” appears in the CID, click “OK” on the SSM5 screen.
vi. Confirmation screen will be displayed as shown below. Check the box and click [OK].
vii. Follow TSB 14-28-21 “New Software Reprogramming Procedures / SSM5-R” STEP 16 STEP 20 to complete update verification procedure. If the software update has been completed
correctly, it will display “Reprogramming completed”. Remove the USB drive from the
vehicle and click on “Back to Diagnosis Screen”.
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Note: It is very important to complete software update verification for the server to get all
required details for the VIN and store that information for future applications. For example,
campaign or recall eligibility or claim eligibility verification etc.
viii. Please verify that the Cockpit Control Unit’s Reprogramming availability is set to ‘Not
Available.’ The software update process is completed at this point.
CAUTION: Once you have performed a software update, you cannot start the next software update
until the “Software update setup is initializing…” process is completed. If the Initializing screen
is displayed, please wait for about 30 minutes until it is finished. While waiting for Initializing to
complete, it is possible to turn the ignition on and start the engine. See Appendix 5 of this bulletin if
need additional information.
ix. Display the System Information/Version information following step 1b from page 4 to confirm
the software has been updated to match a new version from the Software Version Table below.
NOTE: The new Software Version number must be entered when prompted at claim entry.
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APPENDIX 5
Follow this procedure in the RARE case of “Software update setup is initializing…” message is displayed:
• If the screen shown below appears, WAIT for approximately 30 minutes or as long as necessary
(waiting for longer than 60 minutes might indicate system malfunction). In that case please
perform recovery according to the instructions in Appendix 6 to allow the Software update setup
initialization process to complete.
Base
High/Mid
•
The screens shown below will be displayed when the process completes.
Base
High/Mid
1. Turn the ignition OFF, open the driver’s door, close the driver’s door and WAIT for 3 or more
minutes before proceeding further.
2. Open the driver’s door again and either turn the ignition ON (if a charger is connected) or start the
engine.
3. Go to Dealership Mode menu again (PRESS and HOLD the RIGHT-side temperature control
buttons (both up and down) and press the Tune / Scroll knob 6 times then release all to display the
Dealership Mode) and select Software Update as in STEP 4c.
IMPORTANT NOTE: If this procedure is required, contact Techline as additional action may be
necessary.
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APPENDIX 6
In case of retrying the software update after the first attempt of update fails.
•
If the first attempt of update fails with the message below, follow the steps described below 1-2 to
1-8 before retrying the software update.
1-1. Select OK in the screen below
High/Mid
Base
1-2. Turn the ignition switch or the engine OFF, and turn it ON again.
Caution: Do not remove battery terminal and keep battery power supply.
Base
High/Mid
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1-3. Select Software Update in the Dealership Mode diagnostics screen.
Base
High/Mid
1-4. When you see the screen below, wait for approx. 15 minutes until the initialization is
complete
Base
High/Mid
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1-5. You will see the screen below when the initialization is complete.
Base
High/Mid
1-6. Turn the ignition switch or the engine OFF, open the driver side door and close the door
then wait for 3 minutes.
1-7. Open the driver side door then turn the ignition switch or the engine ON.
1-8. Go to Dealership Mode menu again (PRESS and HOLD the RIGHT-side temperature
control buttons (both up and down) and press the Tune / Scroll knob 6 times then release all to
display the Dealership Mode) and select Software Update as in STEP 4c.
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Bulletin Number: 15-305-22R; Revised: 01/20/26
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APPENDIX 7
In case the Gracenote update popup screen appears or software initializing screen does not go away
for more than 20 minutes, please perform steps 2-1 to 2-11.
High/Mid
2-1. Select “Settings” in the Dealership Mode diagnostics screen.
High/Mid
Base
Base
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2-2. Select “Memory Initialization”
High/Mid
2-3. Select “OK”
After Memory Initialization, all settings are reset to factory default.
High/Mid
Base
Base
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2-4. You will see the following screen
High/Mid
Base
2-5. After a few seconds, system restarts itself.
2-6. Select “Software Update” in the Dealership Mode diagnostics screen.
Base
High/Mid
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2-7. When you see the screen below, wait for about 15 minutes until the initialization is complete
Base
High/Mid
2-8. You will see the screen below when the initialization is complete.
High/Mid
Base
2-9. Turn the ignition switch or engine OFF, open the driver side door and close the door then
wait for 3 minutes.
2-10. Open the driver side door then turn the ignition swatch or engine ON.
2-11. Go to Dealership Mode menu again (PRESS and HOLD the RIGHT-side temperature
control buttons (both up and down) and press the Tune / Scroll knob 6 times then release all to
display the Dealership Mode) and select Software Update as in STEP 4c.
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Bulletin Number: 15-305-22R; Revised: 01/20/26
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APPENDIX 8
Denso Gen 4.5 Software Update Timeline (TSB Number: 15-305-22)
Update #
MY
Version
Release Date:
0
2023
0
9/1/2022
F61WHM013-280 (High model software)
F61WMM013-280 (Mid model software)
F61WBM013-280 (Base model software)
SOP for 23MY Outback/Legacy
1
2023
RC1
11/11/2022
F61WHM023-580 (High model software)
F61WMM023-580 (Mid model software)
F61WBM023-580 (Base model software)
- See “Conditions Addressed by Update #1” as
outlined in Appendix 9 below
2
2023
RC2
2/24/2023
F61WHM033-681 (High model software)
F61WMM033-681 (Mid model software)
F61WBM033-680 (Base model software)
- See "Conditions Addressed by Update #1" as
outlined in Appendix 9 below
RC2
(FOTA Software Version)
6/1/2023
F61WMM033-270 (MID FOTA SOFTWARE)
F61WMM033-570 (MID FOTA SOFTWARE)
F61WHM033-270 (HIGH FOTA SOFTWARE)
F61WHM033-570 (HIGH FOTA SOFTWARE)
- See TSB 15-311-23 Appendix C
RC4
2/23/2024
F91WHM053-880 (High model software)
F91WMM053-880 (Mid model software)
F91WBM053-880 (Base model software)
- See "Conditions Addressed by Update #3" as
outlined in Appendix 9 below
RC3.2
(FOTA Software Version)
4/11/2024
F61WMM043-270 (MID FOTA software)
F61WMM043-570 (MID FOTA software)
F61WMM043-670 (MID FOTA software)
F61WHM043-270 (HIGH FOTA software)
F61WHM043-570 (HIGH FOTA software)
F61WHM043-670 (HIGH FOTA software)
- See TSB 15-311-23 Appendix C
RC5
7/1/2024
FM1WHM073-980 (High model software)
FM1WMM073-980 (Mid model software)
FM1WBM073-980 (Base model software)
- See "Conditions Addressed by Update #4" as
outlined in Appendix 9 below
RC5
(FOTA Software Version)
9/27/2024
F61WMM073-270 (MID FOTA software)
F61WMM073-570 (MID FOTA software)
F61WMM073-670 (MID FOTA software)
F61WMM073-770 (MID FOTA software)
F61WMM073-870 (MID FOTA software)
F61WHM073-270 (HIGH FOTA software)
F61WHM073-570 (HIGH FOTA software)
F61WHM073-670 (HIGH FOTA software)
F61WHM073-770 (HIGH FOTA software)
F61WHM073-870 (HIGH FOTA software)
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