NHTSA ID Number: 11005620
Manufacturer Communication Number: 15-305-22R
TSB/Document Date: 2024-08-05
Summary
This bulletin 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.
4
2023-2025
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 (page 37) below
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 36 of 76
APPENDIX 9
Symptoms Addressed By Update #4:
Number
1
Category
Reset
2
CarPlay
Symptoms to be Improved:
CID screen (CCU) repeatedly resets every 3 minutes.
Wireless conenction drops while using wireless CarPlay due to external signal interference from surrounding facilities etc.
(only applicable to HIGH and MID trim)
During CarPlay handsfree call receiving party is not able to hear the caller as
the microphone data is muted
3
When wireless AndroidAuto connection failed, the same connection failure
error was displayed in all cases. Since it was difficult to understand how to
deal with the problem, the connection failure error was divided into several
phases.
1st step: Bluetooth connection phase
2nd step: Confirmation phase of Wi-Fi connection information
3rd step: Wi-Fi connection and Android Auto connection phase
AndroidAuto
Failure in the 1st step: Various error messages are displayed to try the user to
redo the connection procedure.
Failure in the 2nd step: When an error occurs, an automatic retry is performed
by internal processing, and the screen indicates that a retry is in progress.
Failure in the 3rd step: The timer for determining failure is too long, so it is
changed from 130 seconds to 45 seconds to shorten the time until the error
message is displayed.
(only applicable to HIGH and MID trim)
When the USB cable is disconnected while using Android Auto with wired
connection (USB connection), automatic switching connection to wireless
Android Auto connection may fail.
(only applicable to HIGH and MID trim)
Wireless Android Auto connection fails.
(only applicable to HIGH and MID trim)
The Android Auto icon does not appear on the Home screen; pressing the
Android Auto icon from the Apps screen does not activate wireless Android
Auto.
(only applicable to HIGH and MID trim)
AndroidAuto connection via USB connection sometimes fails.
(Caused by the USB connection mode connecting the Android device to the
on-board device not switching in the expected order)
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 37 of 76
Number
4
Category
Symptoms to be Improved:
1. Toggling the CarPlay ON/OFF switch multiple times on the Manage Devices screen while the iPhone is connected via USB, may result in a ""Bluetooth connection unavailable"" state. It is the same as a ""CarPlay connection
unavailable"" state. Bluetooth icon in the top right corner of the CID screen
may still indicate a connected state.
2. When multiple Android Devices attempt to connect during ignition on, it
may result in a "Bluetooth connection unavailable" state. It is the same as a
"wireless Android Auto connection unavailable" state. Bluetooth icon in the
top right corner of the CID screen may still indicate a connected state.
Bluetooth
5
Audio
Bluetooth connection may not be available and the pairing Delete may not
work.
(only applicable to HIGH and MID trim)
(1) After ignition on, the audio may not return to the audio that was playing at
the previously played audio.
(2) Audio sound may not sound immediately after ignition on.
On iPhone audio with iOS 16.4 or later the song list disappears when a song
in the playing playlist is selected.
(only applicable to HIGH and MID trim)
After ignition on it may take approximately 16 seconds for iPod audio audio
to play.
(only applicable to HIGH and MID trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 38 of 76
Number
6
Category
Display
Symptoms to be Improved:
The registered mobile device information is not displayed on the Manage
Devices screen.
(This occurs when the name or device ID of a mobile device contains a character code that cannot be displayed.)
(only applicable to HIGH and MID trim)
The order of 1.First Name and 2.Family Name in the phone book is set to
1.→2. even if the order is set to 2.→1.
The message function may become unavailable following repeated page
scrolling up and down of the list on the phone's message list screen.
(only applicable to HIGH and MID trim)
When transitioning to the maintenance screen and the setting value is set to
AUTO, a popup prompting the user to sign a MySubaru contract is displayed
and the setting is switched to Manual.
(only applicable to HIGH and MID trim)
When turning off and on while two or more shortcuts of DMS/SRH/SRVD
icons are set on the Home screen, the order of icons changes from DMS to
SRVD, SRH, VDC, AVH, and ISS.
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 39 of 76
Number
6
Category
Display
Symptoms to be Improved:
The AVH icons on the HOME screen are initially lined up next to the ValetMode icon. However, in some cases they are placed at the top (upper left
corner of the first page) or next to the MAP icon.
(only applicable to HIGH and MID trim)
After switching the clock function to AUTO, the CID screen display may
become distorted.
(only applicable to HIGH and MID trim)
It may take accessive time to start the CID screen after ignition on.
7
SXM
The first time ignition on after the CCU software update added the SXM360
functionality, the SXM playback screen may remain at “Loading...” after the
CCU software update.
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 40 of 76
Number
7
Category
SXM
Symptoms to be Improved:
The SXM function will not accept any further operations during playback of
SXM360 IP communication channel.
After the progress bar is displayed with silence due to communication breakdown, etc., operate IRPLay/Pause.
Operation of SXM function becomes unresponsive and SXM function restarts
if the user quickly alternates between SXM satellite and IP channels
Playback may not start when perform fast switch of SXM channel selection
Selecting an SXM channel using steering wheel switch
After booting, the SXM playback screen may remain blank for about 45
seconds.
After ignition off/on, SXM may play a channel that was not the last channel
played.
When viewing preset registered SXM IP channels with the steering wheel
switch to feed presets and switch preset pages, the list may not switch.
Screen remains on FM/AM, SXM with the sound pn and off, asfter switching
audio source to FM/AM from SXM.
The tab buttons for switching settings items may not be displayed.
From the SXM Notification screen, press and hold the Tune knob button to
enter the Sound Settings popup screen. Close the popup with the × button to
transition to the Radio Settings screen.
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 41 of 76
Number
7
Category
SXM
8
Symptoms to be Improved:
In the SXM screen, the On Demand button in the upper right corner is grayed
out and cannot be operated in the Sports→ Sports Talk screen.
(only applicable to HIGH and MID trim)
After booting, the Map screen may not appear even if the Map icon on the
Home screen is pressed.
(only applicable to HIGH trim)
Three destination suggestion displays in the navigation system are sometimes
displayed overlapping each other. Originally, up to three destination suggestions are displayed at the bottom of the screen when the navigation system is
started.
(only applicable to HIGH trim)
The total delay time due to traffic and other factors is not displayed at the top
of the navigation route bar.
(only applicable to HIGH trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 42 of 76
Number
8
Category
Navi
Symptoms to be Improved:
When turning ignition off and on while the Map screen is displayed, the
message ""Loading Navigation..."" may remain on the screen, and the Map
screen may not be displayed.
(only applicable to HIGH trim)
The route guidance operation starts with the screen displaying the entire route
to the destination. Your Information & Privacy screen is displayed when the
navigation system is booting for the first time and you have not accepted the
privacy policy. Set the destination of the navigation system by voice recognition commands, launch the navigation screen.
(only applicable to HIGH trim)
While driving with the navigation destination set, the estimated time of arrival may be interrupted halfway through the speech, and after that the navigation voice guidance may not sound.
(only applicable to HIGH trim)
When a destination is set and the map data of the state through which the
route passes is updated during route guidance, the navigation application may
be restarted or the route in the route guidance may disappear.
(only applicable to HIGH trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 43 of 76
Number
9
Category
Audio/Voice
recognition
Symptoms to be Improved:
The record of the boost peak value may be reset after the engine is started.
(only applicable to WRX model)
10
SUBARU
STARLINK
Delete Subaru STARLINK function icons and setting items on the CID
screen.
Note: Subaru STARLINK apps service was ended in 2023 years.
11
Translation
The screen display containing the word “Depress” was mistranslated in four
languages (Canadian French, European French, Slovak, and Malay) to mean
“Release the brake” instead of “Depress the brake".
Among the error messages in case of CarPlay connection failure, there was a
screen that corresponded only to English. Support translations for languages
other than English.
12
Performance After ignition on, screen operation may be slow when using CarPlay or other
functions without once starting Map.
(only applicable to HIGH trim)
New Functions and Enhancements included in Update #4:
Number
1
New Function or Enhancement
The certificate of the data distribution server for the map update service by MapOTA
(MOTA) will be changed from 2025, and the previous server certificate will no longer be
able to connect. Therefore, the updated server certificate will be added.
(See Appendix 10 (page 76) for more details)
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 44 of 76
Symptoms Addressed By Update #3
Number
Category
Symptoms to be Improved:
1
-After turning ignition ON, the "CAUTION" screen is displayed for 2
minutes. After the "CAUTION" screen is displayed, a reset may occur.
-During Bluetooth audio playback, the CID screen may turn to a black screen.
-When shifting from R to any other gear immediately after starting the
engine, the CID screen takes some time to return to the home screen,
displaying only a background (only applicable to HIGH trim)
-Right after starting up, the CID displays only background without icons and
no further operation can be done (not applicable to WRX)
Black
Display
After engine starts, only the black frame of the Caution screen display may
remain on the CID screen.
The rear view camera can be displayed by shifting to shift R.
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 45 of 76
Number
Category
2
Reset
Symptoms to be Improved:
- When an iPhone/iPod is connected via USB cable and connected as an iPod
audio device instead of CarPlay, the CID screen may reset when song information is received.
(This occurs when some of the song information data sent by the iPhone/iPod
is missing)
- Shortly after turning the ignition on, the CID screen reboots (not applicable
to WRX)
When turning ignition on/off repeatedly, the CID screen may restart after
startup (not applicable to WRX)
- After Turning ignition on, the CID screen may restart repeatedly in 2-3
minute cycles (not applicable to WRX)
- After starting the engine, the CID screen (CCU) resets approximately 3
minutes later (not applicable to WRX)
- After performing the Factory Data Reset, there is a mechanism to restart the
CCU once, but it repeats another restart after displaying the Caution screen
immediately following the initial reboot (not applicable to WRX)
- The CID screen suddenly reboots due to audio functionality problem (It is
difficult to visually distinguish this reset from other types of resets)
(not applicable to WRX)
- When multiple reminders for maintenance dates, birthdays, and
anniversaries are set and nearing, a series of pop-up notifications appear on
the CID screen after starting the engine. If you try to delete a reminder right
before it switches to the next one, the CID screen may reboot (not applicable
to WRX)
- Performing the following steps may lead to the CID screen rebooting again
a few seconds later (not applicable to WRX):
1. Turn on the Valet Mode function.
2. Long-press the Volume knob to forcefully trigger a reboot of the CID
screen.
3. When the reboot begins, and the CID screen goes dark, turn the IGN-OFF
and immediately open and close the door.
4. When the CID screen reappears, turn the ignition on.
- CID screen restart may occur about 6 minutes after engine start due to a
radio tuner startup failure (This symptom is indistinguishable from other CID
screen restarts) (not applicable to WRX)
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 46 of 76
Number
Category
2
Symptoms to be Improved:
- When the automatic map data update function is set to ON (as shown in the
example) the CID screen may restart after engine startup (only applicable to
HIGH trim)
Reset
3
4
- TomTom navigation (map) application suddenly restarts (only applicable to
HIGH trim)
- Add a function that, when there is no response from the iPhone for a certain
period while CarPlay is being connected, the source is changed automatically
CarPlay or
to Bluetooth audio with message displayed "CarPlay music playback is not
Android Auto
available" (not applicable to WRX)
projection
application - Bluetooth, AndroidAuto, and CarPlay may become unavailable when
CarPlay is connected to an iPhone via USB cable (not applicable to BASE
trim)
- Symptom 1: Automatic connection of Wireless CarPlay fails.
- Symptom 2: The status bar icon at the top of the CID (Central Information
Display) indicates a Bluetooth connection status, but the 'Manage Device'
screen shows Bluetooth as disconnected, resulting in inconsistent information
as depicted below (not applicable to BASE trim)
CarPlay
projection
application
- While using wireless CarPlay, the CarPlay screen may suddenly disappear
and return to the HOME screen (CarPlay is ended due to the intermittent loss
of Wi-Fi signal) (not applicable to WRX)
- After unplugging and reinserting the USB cable for the wired CarPlay, the
CarPlay becomes unable to launch. This issue occurs only in case of wired
CarPlay (only applicable to BASE trim)
- When using CarPlay, CarPlay may disconnect at the timing to end a Siri(*)
or phone call. Also, CarPlay cannot be reconnected afterwards.
(not applicable to WRX)
(*) Siri is the digital assistant that is part of Apple Inc.'s OS operating systems
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 47 of 76
Number
Category
4
Symptoms to be Improved:
- The screen does not switch to the CarPlay screen even if the CarPlay icon
on the Home screen is pressed. (This occurs if both the CarPlay screen and
the automatic screen switching by some function overlap in time)
(not applicable to WRX)
- After turning the ignition off and on, wireless CarPlay does not
automatically reconnect (not applicable to BASE trim)
- When turning the ignition on, there is a failure to automatically reconnect to
the previously connected wireless CarPlay (not applicable to BASE trim)
- Automatic reconnection of Wireless CarPlay may take approximately 7
minutes. (not applicable to BASE trim)
- If CarPlay is manually turned on from the Manage Devices screen
immediately after engine starts while CarPlay is automatically connected,
CarPlay cannot be activated (not applicable to BASE trim)
- CarPlay cannot be started immediately after engine start, when manually
turn on CarPlay from ManageDevices screen.
- CarPlay may disconnect when switching between CarPlay and other screens
during CarPlay connection.
CarPlay
projection
application
- CarPlay will not be activated.
(This occurs due to CarPlay connection authentication failure caused by corruption of certificate data read from AppleIC.)
"- When using CarPlay, it may disconnect and not reconnect even after unplugging and plugging in the USB cable.
(This occurs when there are repeated failures in data transmission/reception with the iPhone and the number of unanswered signals from the iPhone
exceeds 127)"
- When starting the engine with the iPhone connected via USB, CarPlay may
not start even if the CarPlay icon on the home screen is pressed. (This can be
resolved by reinserting the USB cable.)
- When WirelessCarPlay is disconnected due to radio interference, we have
incorporated improvements to avoid radio interference and make it easier to
reconnect (not applicable to BASE trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 48 of 76
Number
Category
5
Symptoms to be Improved:
- When repeatedly unplugging and plugging the USB cable of an Android
device during Android Auto, it may lead to the "Android Auto connected"
display showing up even when Android Auto is not actually running. As a
result, reconnecting the USB cable may not start Android Auto as expected
(not applicable to WRX)
- Situation: Connect a registered Android device to USB with IGN ON and,
after launching the CID screen, immediately disconnect the USB.
Symptoms: Even though Android Auto is not connected, the ""Connecting""
icon appears on the Manage Devices screen. Also, despite disconnecting the
USB, wireless Android Auto does not connect (not applicable to WRX)
Android Auto - When you toggle on Android Auto from the Manage Device screen in CID
projection while the Android device is not connected via USB, there may be a failure to
application start Wireless Android Auto (not applicable to BASE trim)
6
Audio
- Wireless Android Auto disconnects (not applicable to BASE trim)
Stand-by time setting for automatic disconnection in case of no response
from the smartphone is changed from 3 seconds to 10 seconds
- Add a function to automatically try to reconnect when Bluetooth or
Android Auto is disconnected due to no communication response from the
Android device (If there is no response from the Android device even after
reconnection, it will disconnect.)
- After starting the engine, there is no sound from the speakers, including
audio and voice guidance, and it is not possible to switch the audio source
(not applicable to WRX)
- When starting music playing on the Bluetooth audio screen, song
information is displayed, the seek bar progresses, but there is no sound coming from the speakers (not applicable to WRX)
- When the engine is repeatedly turned on and off with the driver's door open,
audio and voice couldn't be heard from the speakers and the volume change
operation may not work.
Continued...
Bulletin Number: 15-305-22R; Revised: 07/18/24
Page 49 of 76
Number
Category
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TSB/Document ID: 15-305-22R
Replacement Service Bulletin Number:
MFR Communication Date: 2024-07-18
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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