Filter” item in step 2.

NOTE: On Mid and High models,
once the system receives GPS data from the DCM (Mid/High model) or CCU (High model), the head
unit will set the date and time automatically.
Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

1
Quick Guide (DUAL 7.0-INCH DISPLAY SYSTEM)

NOTE: Either front USB port can play back audio files. In case two USB memory devices are
connected, the one connected first will be used by the system for playback operation. In case
an Apple device is connected to one of the USB ports, only the Apple device (Carplay / Subaru
STARLINK) can be used. During this time, USB Memory Device playback isn’t available since the
BASIC FUNCTION
USB port operates in “Host mode” during Carplay or Subaru STARLINK operation.
LOADING AND UNLOADING A DISC*
CONNECTING A USB
RECOMMENDATIONS:
MEMORY DEVICE/
Loading a disc
Unloading a disc
The USB audio playback screen can be accessed by pressing the Media PORTABLE DEVICE
icon on the home screen.

Page 11 of 26

北米Model "A2570BE-A" EDITED: 2019/ 5/ 24

15:30:36

CONDITION #14: Genuine Subaru accessory CD player does not play back “lossless” (listed as
ALAC and FLAC in the table below) audio file formats although the Owner’s Manual shows CP1
does support these formats.
TIPS FOR OPERATING THE AUDIO SYSTEM

● For USA customers, please visit www.subaru.com for
details. Outside of the USA customers, contact your local
dealer to arrange a demonstration in order to confirm
whether or not the phone can be paired with the vehicle.

FILE INFORMATION
Codec

Description

Channels

Container/
Extension

MPEG-4 AAC
LC

8-48 kHz sampling rate
8-320 kbps CBR, VBR

Mono and
stereo

.m4a, .aac

MPEG-4 HE
AAC

16-48 kHz sampling rate
8-320 kbps CBR, VBR

Mono and
stereo

.m4a, .aac

MPEG-4 HE
AAC v2

16-48 kHz sampling rate
8-320 kbps CBR, VBR

Mono and
stereo

.m4a, .aac

MP3

8-48 kHz sampling rate
8-320 kbps CBR, VBR

Mono,
Stereo,
and Joint

.mp3

WMA2/7/8/
9/9.1/9.2

16-48 kHz sampling rate
8-320 kbps CBR, VBR

Mono and
stereo

.wma

PCMWAVE

8 bit and 16 bit
8000, 16000, and 44100 Hz
sampling frequency

Mono and
stereo

.wav

FLAC

44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz, 192 kHz
sampling rate
16 bit, 24 bit

Mono and
stereo

.flac

Codec

ALAC

Description

Channels

44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz, 192 kHz
sampling rate
16 bit, 24 bit

Mono and
stereo

Container/
Extension
.m4a

● The player is compatible with VBR (Variable Bit Rate).
● MP3 (MPEG Audio Layer 3), WMA (Windows Media
Audio) and AAC (Advanced Audio Coding) are audio
compression standards.
● This system can play AAC/AAC+ v2/MP3/WMA files on
CD-R*, CD-RW discs*, USB memory device, and Bluetooth
device.
*: If equipped

● This system can play disc recordings compatible with ISO
9660 level 1 and level 2 and with the Romeo and Joliet
file system.*
*: If equipped

● When naming an AAC/AAC+ v2/MP3/WMA file, add an
appropriate file extension (.mp3/.wma/.m4a).
● This system plays back files with .mp3/.wma/.m4a file
extensions as AAC/AAC+ v2/MP3/WMA files respectively.
To prevent noise and playback errors, use the appropriate
file extension.
● This system can play only the first session when using
multi-session compatible CDs.*
*: If equipped

178

CAUSE:
The information on page 178 of the Owner’s Manual shows “FILE INFORMATION” for Audio
GC7_US.indb
178
2019/05/30
System but, this information is only applicable when using a USB Memory Device.

15:32:04

RECOMMENDATION:
As a work-around, use WMA/MP3/AAC file formats to play back audio CDs originally created in
lossless formats.
CONDITION #15: Microphone test anomaly
When performing the diagnostic checks for microphone operation using DIAGNOSTICS MODE
(Dealership Mode/ Function Check/Microphone), the level gauge reading may appear weaker than
expected or what may have been seen during prior testing. In some cases, a time lag or no or just one
bar may be displayed when speaking into the microphone. This can occur both input levels and does
not necessarily indicate a concern with the microphone.

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 12 of 26

Lower Display Screen on
“Base” Models

Display Screen on “Mid”
and “High” Models

CAUSE:
There is a known bug with the RC2003 software update released in June 2020. See Appendix B
in TSB 15-261-20R to confirm if the software of the unit being repaired is impacted by this bug.
This bug affects only the display of the microphone test and in no way impacts actual microphone
operation.
RECOMMENDATIONS:
With the microphone display being impacted, it is recommended to use other diagnostic methods.
Alternatively, troubleshoot the microphone operation using the Voice Recognition feature to
confirm the unit receives voice input correctly or, make a voice call. If concerns remain, perform
continuity and voltage drop testing to confirm if a poor contact or connection may exist. Reference
the applicable Service Manual for related wiring diagrams for the Cockpit Control Module and
microphone wiring diagrams, with or without Telematics depending upon the vehicle.
CONDITION #16: Weather Alert message
CAUSE:
The Denso CP1 system is designed to receive severe weather alert information from Sirius XM
(SXM) and display a pop-up window with the alert message as shown below.

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 13 of 26

RECOMMENDATIONS:
Denso implemented SXM Weather Alert settings within the Gen 4 CP1 controls. These settings
control all alert types as well as the ability to completely turn the alerts off. Unlike Gen 3 Harman,
the settings for Weather Alert in Gen 4 Denso are in the SiriusXM Travel Link menu (Applications).
See the Gen 4 screenshots below.

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 14 of 26

CONDITION #17: CarPlay operation hints
CAUSE:
There have been several reports received related to Apple CarPlay operation resulting in unnecessary
head unit replacement while the root cause of the condition was any or all of following:
• the iPhone used to control the application
• the USB cable (non-Genuine Apple cable)
• the USB Hub (Aux port- damaged or other).
The iPhone is a “master” supervising the Apple CarPlay application projected on the system.
RECOMMENDATIONS:
Any time communication is interrupted between these devices, it will impact Apple CarPlay
functionality. The hints below are intended to help interpret the data shared by the customer.
•

Handsfree call in progress (clock with green background)
Gen 4 Denso CP1 CID
Gen 3 Harman Head Unit Display

NOTE: This information may be beneficial if the customer asks about the clock background color
changing at random or, how to confirm a handsfree call was in progress when the condition occurred.
Diagnostic hint: Check the phone screen when the condition occurs to see what is active on it or if
any error messages are displayed.
•

iPhone MIC is enabled by another application (clock with red background)
Gen 4 Denso CP1 CID
Gen 3 Harman Head Unit Display

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 15 of 26

NOTE: A report was received with a customer concern of the audio streaming app stopping at
random. It turned out, the Camera application (video) has been accidently started on the iPhone and
was interfering with the audio streaming application. It was determined by using clock background
attribute showing the MIC was enabled each time the streaming stopped. Replacing the hardware
in the vehicle would not have had any effect or resolved this case but, helping the customer to
understand how the phone works will likely prevent future concerns.
HINT: Always check the phone screen when the condition occurs to see what app is active and if any
error messages may be displayed.
If any issue duplicates consistently, or if only intermittent, always perform a complete diagnosis to
eliminate the iPhone, the cable and / or the USB Hub being the root cause. Intermittent concerns
are always more challenging and might require consistently collecting information from the customer
over a period of time to understand the steps required to duplicate the concern.
NOTE: Observing the iPhone screen is as important as monitoring the head unit display. See the
examples below which illustrate this point.
•

WAZE application has started on iPhone (iPhone clock with blue background to indicate
enabled notification mode with the vehicle audio source forced to switch to Apple CarPlay):

NOTE This information will be helpful when explaining why the radio or CD stop playing when
the Waze app was started. The head unit projects what the iPhone is pushing to it. Hardware
replacement will NOT fix the concern of a crashing phone app. In cases like this, frequent iPhone
reboots or restarts (especially after recent iOS update) or updating or reinstalling the application on
the phone were suggested. Check the comments in iTunes store as this may be a known concern with
the app.
Hopefully, the information above is helpful. Always check for those types of details as well as
utilization of any reference material available on Subarunet (Service Operations & Technical/ Forms
and Downloads) including TSGs, TSBs, Operating Tips etc.

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 16 of 26

CONDITION #18: No Audio during CarPlay
CAUSE:
A number of reports have been received stating the Audio Output (radio, CD, USB etc.) gets
interrupted when the Apple CarPlay app is launched or a Navigation app (e.g. Waze) or audio
streaming application is (e.g. TuneIn) is started from the Apple CarPlay environment.
Gen 4 Denso CP1 CID

RECOMMENDATIONS:
This is a normal operating characteristic as the iPhone takes control. This may also occur when the
phone is used for other purposes while CarPlay is active such as: texting, replying to e-mails or other
phone-side actions.
Restore the audio playback by switching the source back to Radio or Media as applicable using the
touch display or steering switch. Another work-around is to clear the iPhone’s CarPlay cache. Steps
to do this are supplied below.

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 17 of 26

In case the audio output is not restored, follow the troubleshooting flowchart using the link on
Subarunet (Service Operations & Technical/ Forms and Downloads) and document the results in the
applicable questionnaire.

CONDITION #19: SXM Functions
CAUSE:
Several reports have been received of normal operation being mistaken as a failed behavior resulting
in corrective actions leading to unnecessary hardware replacement.
RECOMMENDATIONS:
As an example, based on enabled SXM settings, the information displayed on the CID can vary
during SXM playback or when changing between SXM channels. Below are some definitions from
the Owner’s Manual to help with the terminology:
Smart Favorites: The first 10 channels which are registered to a preset button will automatically be
registered to Smart Favorites. Channels registered to Smart Favorites can be cached and played back
as desired within a certain amount of time. Smart Favorites channels would have a designation
symbol appearing in preset button in the upper right corner (
)

Smart Favorites allows the head unit to buffer up to 1 hour of audio content.

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 18 of 26

Tune Scan: Channels registered to Smart Favorites can be scanned to find a desired channel. If Tune
Scan setting is ON, the “Scan” button changes to “Tune Scan”.
The screenshots below show how to control SXM functions and what it looks like on the Home
screen.

OFF

ON

Tune Start: When this function is on, channels registered as Smart Favorites will be cached and
when the channel is changed, the song on that channel can be listened to from the beginning. Reports
have been received where the customer is not sure how to bring back the display of the preset buttons
once the cache / song replay screen has popped up. Touching the “Replay” soft button will remove
the cache / song replay screen.

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 19 of 26

NOTE: This playback option automatically appears for Smart Favorites when the “Tune Start”
setting is ON and based on when the smart favorite channel is selected. Tune Start causes the module
to start playing from the start of the most recent buffered song with each station selection change.
This operation is a normal operating characteristic. Do NOT replace hardware to stop getting the
replay screen following Smart Favorite channel selection. If the customer wants to stop the playback
option from automatically appearing for Smart Favorites, turn “Tune Start” setting to OFF using
SiriusXM Setting options.
Below are some screenshots of these conditions:
•

Playback option appears, when the channel selected playing a new song:
Select Ch.019
Preset #5

Ch.016 Preset #5 is
currently playing

•

Ch.019 Preset #5
selected

Ch. 019 Preset #5
selected

Ch. 019 Preset #5
selected

Playback option
comes up, because
the song has changed

Press “Replay” to
return to Preset
buttons

Presets displayed
again

Playback option does not appear, when the channel selected playing the same song
Select Ch.016
Preset #6

Ch.019 Preset #9 is
currently playing

Ch.016 Preset #6
selected

No playback option,
because the same
song was playing
during previous
selection

Ch.016 Preset #6
selected

No playback option,
because the same
song was playing
during previous
selection

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 20 of 26

Observing the time bar is useful in understanding the replay feature and why it doesn’t start each time
Smart Favorite channel is chosen with Tune Start setting enabled.
Reply button selected
(cache is full)

Playing out of cache from
the start of backup
(up to 60 min)

Smart Favorite reply from
the beginning of song
(1min7sec)

REMINDER: Always confirm the concern the customer is reporting is not related to characteristic
SXM Features which may be controlled by changing settings prior to any hardware replacement.
CONDITION #20: Missing “Camera” setting
CAUSE:
A report was received describing a missing “Camera” setting in Settings/General menu:
Camera setting PRESENT

Camera setting MISSING

missing

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 21 of 26

RECOMMENDATIONS:
After further investigation, it was determined to be a result of a needed process not being followed
during replacement of the combination meter. The new combination meter was installed but not
programmed properly by completing the required Variant Work. Always follow the applicable
Service Manual instructions on STIS and confirm completion of all the necessary steps before
condemning a possibly related system or hardware component. The Service Manual image below
is an example of the VARIANT WORK procedure required for Combination Meter System
replacement. Always follow the applicable procedure for the vehicle being repaired.

CONDITION #21: SXM reception outage
CAUSE:
This issue could happen due to signal loss or subscription status change.
RECOMMENDATIONS:
Start diagnostic by confirming no warning messages are displayed to indicate receptions issues:
antenna malfunction or signal loss. It is also a good practice to tune to Ch. 001-XM Preview
and verify there is audio (sound) present. Also use built-in SERVICE DIAGNOSTICS MODE as
described in the service manual to verify SXM antenna status (SXM-> OK). Unless there are issues
with receiving the signal due SXM antenna, harness failures or internal system malfunction, most
likely a simple signal refresh will restore normal operation. Please use the link www.siriusxm.com/
refresh and follow the steps outlined by SXM. Remember to allow enough time for the system to
sync the data by keeping the system powered up after the signal refresh is initiated. During the trial
period, an SXM representative might engage with the customer to let them know about their trial and
when it is going to expire. If the SXM service provider does not hear from the customer or receive
some type of payment, they assume the customer is not interested and deactivate SXM radio after
Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 22 of 26

the trial period is over. SXM service provider offers free listening campaigns, which run several
times each year. Whenever there is a concern about SXM service outside the trial period, always
confirm the customer’s subscription is active and current before condemning the head unit. Radio ID
is displayed when tune to Ch.0. If needed, feel free to contact SXM Advance Technical Support at
1-866-463-5326 (Monday – Friday: 8am – 8pm EST, Saturday – Sunday: Closed to perform.
CONDITION #22: Travel Link Application greyed out or Traffic information not available
CAUSE:
This issue could happen due to signal loss or subscription status change.
RECOMMENDATIONS:
When you are investigating a case for the Travel Link Application icon remaining grey or for Traffic
information not being available, please confirm the Travel Link Application or Traffic information
have been operational previously. Next please confirm SXM reception is not compromised and the
customer is still subscribed for SXM services. Please also review information in the item SXM
reception outage covered in CONDITION #21.
CONDITION #23: CP1 software version verification
CAUSE:
CP1 software update might be performed incorrectly.
RECOMMENDATIONS:
When you confirm CP1 system software version information, please assure the system has been
running long enough to finish boot-up process. We don’t have a spec for how long to wait. Good
practice might be to wait around 3 minutes. If you don’t wait long enough some versions would be
missing or asterisk symbols (****) as shown below.

By the way it is correct to see Deck version as asterisk symbols (****), when CD Player is not
installed. With that said please don’t confuse the case with no “RAD_SW” version and “DSP_FW”
version displayed or showing asterisk symbols (****), even after waiting long enough for the
system to complete boot-up. That would a sign for the failed software update. For more details see
Subarunet message “Recall WRH-20 / WRI-20 Denso Gen 4 CP1 software update. Critical points to
avoiding unnecessary hardware replacement” posted January 5, 2021.
Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 23 of 26

CONDITION #24: CD and Rockford Fosgate amp installation
CAUSE: how to combine installation of CD Player accessory and Rockford Fosgate Audio Upgrade
accessory.
RECOMMENDATIONS: Please note accessory CD player can be installed with the accessory
Rockford Fosgate system.

In order to do so, you should use the harness from Rockford Fosgate Audio Upgrade kit instead of
Power Harness from CD Player Installation Kit

Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 24 of 26

CONDITION #25: Volume adjustment isn’t available and Audio isn’t playing
CAUSE: There have been many reports for audio playback and volume adjustment issue following
CP1 reboot. Please keep in mind it might be a normal operation, if you see a message “No Audio
Playing” in the status bar area.

The message “No Audio Playing” in the status bar area indicates no audio source was selected for
CP1 following reboot. Likely resulted from CP1 running projection application or streaming audio
prior its shutdown. This is not a failure and the customer should not be alarmed.
RECOMMENDATIONS: please select the audio source (SXM, AM, FM, Media etc.) to enable
playback (audio output)

FROM

TO

Please keep in mind, Telematics service and VR features are still available regardless “No Audio”
source selected. By pressing talk button on steering switch would allow to hear voice prompt for
voice command, which verifies the audio playback is operational. Adjusting volume while “No
Audio Playing” isn’t advised, because there is no audio source available.
Continued...
Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 25 of 26

It is also advised to wait for CP1 to complete its setup process (configure applicable settings: pair
accessory, load SXM lineup, find NAVI satellites etc. ), prior to entering command using CID soft
buttons. This action could overload command buffer delaying completion of boot process, which
might also get confused with CP1 malfunction.
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.

Bulletin Number: 15-259-20R; Revised: 06/28/21

Page 26 of 26