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 |
- While listening to the radio (FM/AM) and attempting to select a sports team
channel (SXM channel) from the presets, if the chosen team has a scheduled
game on that day but it hasn't started yet a popup screen displaying the game
schedule appears. However, after the popup screen appears, the system
returns to the previously played channel, and the SXM audio does not play
(not applicable to WRX).
- When using the voice recognition function while playing SXM channels,
the SXM sound may not be heard (not applicable to WRX)
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 56 of 80
Number
Category
9
Symptoms to be Improved:
- After registering SXM channels in the presets when pressing the preset
button after a while, it receives the broadcast information and displays the
channel logo on the preset button. However, when switching the audio source
to AM radio afterward, the preset button returns from the channel logo to a
temporary logo 'SiriusXM' (not applicable to WRX).
- When registering SXM sports team channels to the radio preset buttons if a
team for which logo image cannot be captured is registered, the channel short
name will not be displayed on the registered button and the button will be
blank (not applicable to BASE trim)
SXM
- Regarding the notification information screen for SXM's sports team
channel, certain text appears in English even when the language settings are
set to French (not applicable to BASE trim)
- The voice recognition function encounters an error and ends, when initiating
the SXM Search feature simultaneously with the activation of the CCU unit's
voice recognition
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 57 of 80
Number
Category
9
Symptoms to be Improved:
- When switching to the SAT channel (satellite channel) immediately after
selecting the IP channel (Internet channel) on the SXM360, song information
is not displayed and audio playback stops (not applicable to BASE trim)
- If the ignition-off/on operation is performed quickly immediately after
ignition-on, the previously viewed channel in SXM may not start playing
automatically (It will play by switching the audio source) (not applicable to
BASE trim)
- When the contract status is Demo, "Your Trial Expires in 0 Days" is
displayed on the SXM Setiing screen. The display will be removed when the
contract status is Demo (not applicable to BASE trim)
SXM
- Gametime (1st Period, etc.) is not displayed on the pop-up screen of SXM
Sports channel when a game starts
- Registering a channel with blank information in presets results in a preset
button with a blank label, and the channel logo is not displayed. Additionally,
pressing the preset button with the blank label does not initiate playback of
the channel.
- After turning the engine on, "Loading" should appear on the channel
information screen until SXM playback starts, but it does not appear and
remains blank
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 58 of 80
Number
Category
9
Symptoms to be Improved:
- SXM sound stops sounding after conditions listed below:
1. Register FM station A, an SXM sports channel that is not in the middle of
a game, and FM station B in the order in which they are listed in the radio
presets.
2. Use the steering wheel switch to switch from FM station A to FM station
B, skipping the SXM sports channel that is not in the middle of a game.
3. Just before the playback of FM station B starts, operate the steering
switch seek to return to the previous channel.
SXM
- While playing SXM's Xtra channel, "Slow Network" --> "Something Went
Wrong" is displayed and no sound is heard (not applicable to BASE trim)
- When the preset channel on the SXM is pressed, a different channel is selected instead of the registered channel
10
- When don't select the phonebook contacts transfer during Bluetooth pairing,
transfering the phonebook manually through screen operations can fail. Additionally, the 'Manage Devices' screen may become greyed out and unresponsive in certain instances (not applicable to BASE trim)
- After initiating the phonebook contacts transfer from the smartphone, the
transfer-in-progress screen may remain open and not automatically close even
after the transfer has been completed (not applicable to BASE trim)
Phone
Operation
- When connected to CarPlay, phone calls cannot be answered or hung up using the steering wheel controls (not applicable to WRX)
(The maximum registration limit for Bluetooth-connected devices is 7, but
CarPlay can control a maximum of 5 devices. Therefore, when receiving calls
on the 6th or 7th phone, it was not possible to control the calls.)
- While connecting an iPhone running iOS 16.4 to a vehicle, the SMS functionality cannot be used from the CID screen (only applicable to BASE trim)
- The volume of the phone voice on hands-free calls is set to zero
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 59 of 80
Number
Category
11
Symptoms to be Improved:
- The call screen reduction appears in the Status Bar while connected to Android Auto. Originally, when Android Auto is activated during a
hands-free call, the call screen reduction should disappear (only applicable to
BASE trim).
- If the language setting of the CID is changed while an alarm message by the
Driver Monitoring System(DMS) is displayed on the CID, the alarm will be
hidden (not applicable to BASE trim)
Display
Appearance
- When the vehicle speed is above 25 MPH(40 km)/h, the roll angle display
on the Car Info screen does not become fainter (not applicable to WRX)
- When starting the engine remotely with a registered Driver Profile, one of
the following display issues occurs (not applicable to WRX):
The VDC (Vehicle Dynamic Control) icon on the Home screen is not
displayed and remains blank.
The icon next to the VDC icon on the Home screen is not displayed and
remains blank.
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 60 of 80
Number
Category
11
Symptoms to be Improved:
- When Pre-Collision Braking System is activated, a message of “Obstacle
Detected” is displayed on the information bar and does not go away (not
applicable to WRX)
- During CarPlay navigation, text in the Turn By Turn information displayed
in the Information Bar at the top of the CID may overlap. For example, the
display of 'Unnamed road' and '**** Street 200m ↑' may overlap
(not applicable to BASE trim)
- When shifting from reverse range, the icons on the CID Home screen may
not be displayed, and only background may be displayed for a few seconds
(The clock at the top and the air conditioner screen at the bottom are
displayed) (only applicable to HIGH trim)
- If a hands-free call is started and the Starlink screen is activated at the same
time the call ends, the Media screen (radio, Bluetooth audio, etc.) and the
Starlink screen are overlapped (not applicable to BASE trim)
Display
Appearance
- The date for the message is displayed as 1/1/2000 instead of the correct
date. This occurs on some models of phones with Android OS 13 or later.
12
Touch
Operation
13
- Suddenly, the touch screen on the CID (Central Information Display) becomes unresponsive, even though the screen display remains normal. (not
applicable to WRX)
- CID doesn't respond to touch (The screen is displayed and sound is played,
but only the operations are not available)
- When repeatedly entering text on the destination search screen, the screen
may freeze, and the navigation application restarts (only applicable to HIGH
trim)
Navi
Operation
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 61 of 80
Number
Category
13
Symptoms to be Improved:
- While a detour route is suggested by NAVI system if a faster detour is found
before reaching the suggested alternate point, the route bar switches to the detour display mode a few miles before the actual detour point causing an error.
This detour display mode continues and the route bar becomes inoperative
until passing the detour point (only applicable to HIGH trim).
- During long-distance route navigation, if you deviate from the planned
route and a rerouting occurs, there is a sudden jump in your vehicle's position
to New York (the default location) while the rerouting is in progress. After
approximately 3 seconds, your position returns to its original location (only
applicable to HIGH trim)
Navi
Operation
- After passing through a detour point, the route bar does not return to the
normal route bar from the detour route branch display on the map (only applicable to HIGH trim)
- The color of the traffic information on the map (yellow) is incorrect. Change
it to the same color as the traffic information in the route bar (orange) (only
applicable to HIGH trim).
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 62 of 80
Number
Category
13
Symptoms to be Improved:
- When you turn ignition off/on while in route guidance settings and cancel
route guidance, the map scale does not return to the scale before the route
was set but instead maintains the map scale during route guidance (only applicable to HIGH trim)
- If you repeatedly press the 'Yes' button on the POI(Point Of Interest) popup,
the next time a POI popup appears the 'Add Waypoint' popup also appears
simultaneously causing them to overlap (only applicable to HIGH trim)
- When the system language is set to English, the brand name of that facility
is not displayed on the POI (Point of Interest) details screen. In other languages, brand names like 'Subaru' are displayed, and it should also be correctly displayed in English" (only applicable to HIGH trim).
Navi
Operation
- In the navigation screen, the bottom of the destination suggestion list's
popup screen is cut off and not fully displayed (only applicable to HIGH trim)
- Performing the following steps may cause the map scale to change to the
default scale instead of the one you've set (only applicable to HIGH trim):
1. Display the map (with the set scale).
2. Ignition off/on.
3. Change the map display mode (North-Up Heading-Up). "
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 63 of 80
Number
Category
13
Symptoms to be Improved:
- During map data updates, if you switch off the Wi-Fi function from the Settings screen pressing the Map icon on the Home screen doesn't display the
Map screen for a while (only applicable to HIGH trim)
- Even when pressing the Map icon the map does not appear and it remains
stuck on the 'Loading Navigation' message. This issue occurs due to a corrupted file that stores settings and destination history (only applicable to
HIGH trim).
- The text keyboard which should not be displayed appears on top of the list
of POI categories (only applicable to HIGH trim) when performing the steps
below:
1. Narrowing down the search range within a specific city in the navigation
destination search.
Navi
Operation
2. Move to the POI category screen.
3. Touch the city name input area, then the keyword input area, in that order.
- When a language other than English is set, the distance to the destination
displayed in the navigation destination is abnormal (only applicable to HIGH
trim):
1. When the distance is greater than 1.0, the decimal point is rounded down.
2. When the distance is less than 1.0, the value becomes 0.1.
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 64 of 80
Number
Category
13
Symptoms to be Improved:
- "Keyboard is disable while the vehile is in motion"" is displayed on the
screen when performing the steps below (only applicable to HIGH trim) :
1. Press the POI (destination) Shortcut on the home screen to display the list
of destinations.
2. Press "x" to clear the list.
3. Start driving with the Map screen displayed.
- Add Stop (Register via destination) button is displayed instead of Set button
and Favoirte registration for Home/Work cannot be done after performig the
steps below moving to the ""Favorite"" screen with the navigation destination
set (only applicable to HIGH trim) :
1. Press Add Home/Work
2. Select a location from the Destination History screen
Navi
Operation
- Map is not displayed when Map is pressed from the home screen if switching the language used for the text input keyboard on the search screen of the
navigation application (only applicable to HIGH trim)
- During navigation route guidance, if a Wi-Fi-based map data update is performed and immediately after its completion a route recalculation (rerouting)
takes place, the navigation map screen may freeze and the navigation app
(map app) will restart (only applicable to HIGH trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 65 of 80
Number
Category
13
Symptoms to be Improved:
- When you set a navigation destination and drive repeatedly triggering
rerouting by deviating from the route and start a map update via Wi-Fi, then
wait for about 30 minutes on a screen other than the navigation screen (like
the HOME screen) before transitioning back to the navigation screen the following symptom occur (only applicable to HIGH trim):
symptom 1: The map is not displayed.
symptom 2: The download start button is not displayed on the map update
screen.
Navi
Operation
- When using voice recognition to search for a destination based on a Point of
Interest (POI) category name (such as "gas station"), the search results may
display facilities that have names partially matching the POI category name
in addition to the facilities within that specific category (only applicable to
HIGH trim)
- While parked or driving, touch the traffic information icon on the map or the
traffic information icon on the route bar and display the traffic information
details screen. If you start driving with this screen displayed, it will exit the
traffic information details screen and transitions back to the map screen (only
applicable to HIGH trim)
- After narrowing down the location by city and specifying a point in ""Add
Home"" then registering it as your home if you proceed to ""Add Work"" and
input any text into the search box, the navigation application reboots (only
applicable to HIGH trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 66 of 80
Number
Category
13
Symptoms to be Improved:
- The requirement to press ""OK"" on the Your Safety screen during the initial navigation launch sometimes wasn't displayed (only applicable to HIGH
trim).
Before the change:
If the navigation app was launched for the first time from any icon other than
the Map icon on the Home screen (e.g., through a rest suggestion feature) the
Your Safety screen would not appear and navigation functionality could not
be initiated.
After the change:
Even if the navigation app is launched for the first time from an icon other
than the Map icon on the Home screen, the Your Safety screen will be displayed.
Navi
Operation
- When searching for navigation POIs using voice recognition, the response
is "Navigation is not ready" and POI search may not start (only applicable to
HIGH trim)
- When the vehicle is in the state of New Mexico, the navigation app freezes
and restarts after setting the destination on the navigation system (only applicable to HIGH trim)
- When the vehicle with the navigation route set deviates from the guided
route and triggers an automatic recalculation, the navigation app freezes (only
applicable to HIGH trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 67 of 80
Number
Category
13
Symptoms to be Improved:
- When using voice recognition during navigation to say 'Search for ****
along route,' the POI search results list may display the same result twice
(only applicable to HIGH trim)
Navi
Operation
14
15
Audio/Voice
Recognition
- USB audio is activated by voice recognition command ""play artist xxx""
or ""play album xxx"". The last song played by USB audio is played, not the
song commanded by voice. (only if the same USB is used) (not applicable to
WRX)
Voice
Guidance
- While driving with a navigation route set, there are instances where the
voice guidance may not correctly pronounce "mile."It mispronounces "mile"
as "me" (only applicable to HIGH trim)
16
- After setting a route in the navigation system and activating voice recognition function, the route guidance is not canceled even "Cancel Route" or
"Delete Destination" is completed (only applicable to HIGH trim)
Voice
Recognition
- When you say ""Call ****"" using voice recognition, the meter display
shows "Please wait a moment," but the call cannot be made (not applicable to
WRX)
(Note: "****" indicates an actual phone number or contact name you are trying to call)
- Starting the CCU (Cockpit Control Unit) voice recognition while using the
SXM Voice Search function results in an error and ends the voice recognition
(not applicable to BASE trim)
- When operating the navigation system via voice recognition, certain regional place names (states, cities, etc.) are not recognized (only applicable to
HIGH trim)
Continued...
Bulletin Number: 15-305-22R; Revised: 01/20/26
Page 68 of 80
Number
Category
16
Voice
Recognition
17
19
20
- Speech recognition may not recognize the words "Cruise Control Options"
when completed
- Voice recognition does not recognize the name of a specific SXM channel
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