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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© 2022 Subaru of America, Inc. All rights reserved.

SERVICE BULLETIN
APPLICABILITY:

23MY Outback/Legacy Models

NUMBER: 15-305-22R

SUBJECT:

Reprogramming File Availability for Optimization
of Gen 4 Denso CP1.5 Infotainment Systems

DATE:

11/15/22

REVISED:

12/30/22

INTRODUCTION:
The following information announces reprogramming file availability and provides a software
update installation procedure to optimize the new Gen 4 Denso CP1.5 Audio and Navigation head
units utilized in the models listed above. As in previous models, the procedure will involve either
downloading the software update files from Subarunet or using those sent directly from Nuspire to
the SDS Notebook and transferring them onto a USB flash drive for head unit installation.
It is VERY IMPORTANT to read and understand this information completely before proceeding.
CAUTION: VEHICLE SERVICE PERFORMED BY UNTRAINED PERSONAL COULD RESULT
IN THE EQUIPMENT DAMAGE OR EVEN SERIOUS INJURY.
Service Bulletin is intended for use by trained technicians ONLY. It informs technicians of
conditions, which may occur in some vehicles or provides information, which could assist with
proper servicing of the vehicle. Properly trained technicians have the equipment, tools, safety
instructions, and know-how to do the job correctly and safely.
A timeline chart along with a complete list of all the conditions addressed and enhancements included
in this and previous Denso software updates are provided in “Appendix D” and “Appendix E”
located at the end of this bulletin.
IMPORTANT NOTE: The update contains 1 folder and 1 file. When performing an update, the USB
must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set.
NEVER reuse or combine files from a prior update with a newer version.

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: 15-305-22R; Revised: 12/30/22

Page 1 of 28

PART INFORMATION:
NOTE: High Level unit is equipped with Navigation option
(Map icon on Home screen)

11.6-Inch Display, Mid and High Level Units

Dual 7.0-Inch Display, Base Level Unit

Materials Required:
An empty, USB 2.0 or 3.0 storage device (flash drive) will be needed to perform the update
procedure. The device should be dedicated to storing and transferring these updating files only. It
must be a minimum of 64GB or more in size and contain a NTFS file format before downloading the
update files onto it. Be sure to locate and re-format any existing USB drives used for updating audio
units. They must be fully cleared before adding these new update files to them.

IMPORTANT NOTES:
• NEVER change the update file names after downloading them.
• NEVER save any other files on the same flash drive.

There are various types of USB flash drive available from many suppliers. If the head unit does
NOT recognize the USB drive during the reprogramming process due to Controller IC type of USB
drive or Compatibility with the head unit, confirm the flash drive format is NTFS. The flash drive
must be formatted for NTFS. If a recognition problem persists, use a USB flash drive from another
manufacturer.

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Bulletin Number: 15-305-22R; Revised: 12/30/22

Page 2 of 28

•

Kingston®:

DataTraveler G3 Series DataTraveler 100 G3 DT100G3
DataTraveler SE9 Series DataTraveler SE9 G2 3.0 DTSE9G2
Digital Data Traveler 3.0 USB Flash Drive - Violet DTIG4

•

SanDisk®:

Ultra Series SDCZ48-064G-J57
Cruzer Blade Series
Cruzer Glide Series CZ60 SDCZ60-064G-B35

•

Transcend®:

JetFlash 790 Series TS64GJF790KBE

•

PNY®:

Retract USB 3.0 Flash Drive, black (P-FD64GTRTC-GE)

•

Silicon Power®:

2 Pack USB 3.0/3.1 Gen1 USB Flash Drive Blaze B02

IMPORTANT NOTE: The update contains 1 folder and 1 file. When performing an update, the USB
must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set.
NEVER reuse or combine files from a prior update with a newer version.
Continued...
Bulletin Number: 15-305-22R; Revised: 12/30/22

Page 3 of 28

SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
STEP 1- VERY IMPORTANT: Before proceeding with the software updating procedure, the
currently installed software version ID MUST be confirmed by following the steps below:
1a) After starting the engine and system boot-up completes, from the HOME screen, touch the
Settings button.

1b) Press the General button. Use the down arrow to scroll to System Information then press to
display the System Information / Version information.

The examples below identify the head unit model and the last 6 digits signify the software version
number. Examples:
• F61WHMxxx-xxx (High model software)
• F61WMMxxx-xxx (Mid model software)
• F61WBMxxx-xxx (Base model software)

Continued...
Bulletin Number: 15-305-22R; Revised: 12/30/22

Page 4 of 28

MY

23MY

Carline

Outback/Legacy

Trim/Grade

Older Software
Versions

Latest Software
Versions

BASE

013-282

023-580

MID

013-282

023-580

HIGH

013-282

023-580

If the software version number matches “Older Software Versions” proceed to STEP 2 below. If the
software version is “Latest Software Version” as the unit already has the latest software version
installed. Proceed to the WARRANTY / CLAIM INFORMATION section of the TSB and process
a claim for Version Check Only.

STEP 2- Prepare the USB:
CAUTION: Do not use any USB flash drive which utilizes file organizing software or an operating
system.
VERY IMPORTANT: Before attempting to download any data files, confirm the PC and flash drive
being used is not infected with any virus. The flash drive MUST be formatted for NTFS.
•

Make sure the USB flash drive contains no other files.

•

Right click on the corresponding “Removable Disk”.

•

Select “Format”.

•

From the File System drop-down menu, select “NTFS”

•

Check the “Quick Format” box (if not already done).

•

Click on “Start” to format the USB flash drive.

STEP 3- Download the Update Files to the USB:
The files are available for download on Subarunet (see “A” below).
The applicable reprogramming files have also been sent directly to retailers by Nuspire in the same
way a Select Monitor Update would be pushed out. (see “B” below).
Follow “A” when using files downloaded from Subarunet.
Follow “B” when using the files sent directly to the SDS notebook from Nuspire.

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“A” When using update files downloaded from Subarunet:

IMPORTANT: Files downloaded from Subarunet will be .zip files and must be unzipped before
they can be used. Using the normal audio / navigation system file update download procedure: Go to
Subarunet, select Service Operations and Technical>>Forms/Downloads>>Gen 4/Denso for Audio/
Navi then click on the applicable Hyperlink to download the file(s) to your SDS Notebook or PC:
Updates for Gen 4.0 Denso Audio and Navigation Head Units - 2023MY Legacy/Outback:
23-Legacy-Outback-Denso-CP1 AUDIO UPDATE-November 2022
•

Go to Downloads.

•

CAUTION: After download is complete, NEVER change the file or folder names.

•

Open / display the contents of File folder, for example: “File name TBD”.

•

Click on “Extract All Files”.

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•

The screen below will appear to set a destination for the extracted file.

•

Double-click on the required folder (for this example, used folder titled “Version7(RC2105)_
F11GHM072-582(High)”).

Copy all files then paste (or click / drag) it to the “clean” USB flash drive as listed (Removable Disk)
in the directory.

IMPORTANT NOTE: The update contains 1 folder and 1 file. When performing an update, the USB
must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set.
NEVER reuse or combine files from a prior update with a newer version.
Continued...
Bulletin Number: 15-305-22R; Revised: 12/30/22

Page 7 of 28

•

To avoid confusion, use a permanent marker to label the flash drive with the file contents (e.g.
Denso CP1 2023MY ALL).

•

Go to Step 4.

“B” When using update files sent directly from Nuspire:
•

Go to My Documents on the GUI screen click on the folder “Denso CP1 Audio-Navi Update
Files” to display the list of available update files shown below.

IMPORTANT: Always confirm there is a correct folder. If not, the SDS notebook hasn’t been
updated with the latest release. Please contact Nuspire to request they resend the update.”

•

CAUTION: After download is complete, NEVER change the file or folder names.

•

Double-click on the required folder (for this example, select the file entitled “2023”) and the
update file will display as shown.

Select all folders and files and either copy / paste or click / drag them to the USB flash drive.
IMPORTANT NOTE: The update contains 1 folder and 1 file. When performing an update, the USB
must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set.
NEVER reuse or combine files from a prior update with a newer version.
Continued...
Bulletin Number: 15-305-22R; Revised: 12/30/22

Page 8 of 28

•

Once all files have been loaded onto the USB flash drive, right click on the drive and select
“Eject”.
CAUTION: NEVER change the file names.

•

Remove the USB flash drive after the prompt appears that says “Safe to Remove Hardware”.

•

Mark the USB to indicate the head unit it will update (Denso CP1 2023MY ALL in this
example).

•

Proceed to STEP 4 below.

STEP 4- Perform the software update.
CAUTIONS:
NEVER attempt to install the software immediately following an exchange module installation. Let
the system restart first and operate for 20 minutes.
NEVER attempt to install the software a second time for 30 minutes following a previously
unsuccessful software installation.
NEVER attempt to install the software for at least 30 minutes after completing a FOTA update.

4a) Perform the update in a well ventilated location if updating with the engine running OR with the
ignition ON and a battery charger connected.
4b) 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 Menu.

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Bulletin Number: 15-305-22R; Revised: 12/30/22

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4c) Select Software Update from the Dealership Mode menu.

IMPORTANT NOTE: On a RARE occasion, the message “Software update setup is
initializing…” may be displayed. Should this occur, proceed to “Appendix A” starting on pg. 16 of
this bulletin for further instruction.

4d) The screen below will be displayed.

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Bulletin Number: 15-305-22R; Revised: 12/30/22

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4e) 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