•

Always refer to STIS for the latest service information before performing any repairs.

Continued...
Bulletin Number: 15-236-18R; Revised: 06/10/25

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“Appendix A”
The following time line and symptom list represents conditions addressed by all previous Harman 3.1
updates including the most current version as described in this bulletin.

Harman Gen 3.1 Software Update Chronology (TSB Number: 15-236-18R)
Update #

Release
Date:

NEW Version
ID #:

Map Update
Software ID #

0

7/1/2018

Rel4.18.11.50
Rel4.18.20.50
Rel_U1.18.20.60

Rel_U0.18.30.20**

1

12/5/2018

Rel_U1.18.38.50

n/a

2

3/18/2019

Rel_UA.19.01.70

Rel_UD.19.17.70**

Revised 15-236-18R, INCLUDES update #1 above and addresses
these additional conditions:
- AM/FM radio station presets are lost.
- Favorite Phone Contacts list is lost.
- previously displayed on SXM screen was changed to (a.k.a. SEEK).
- US State names corrected when using voice guidance.
- Correction made for Pop / Crackling-type sound when using AM
radio.
- Navigation system freezes during loading / start-up.
- Music skips/cuts out while using Apple CarPlay.
- Hands-free feature freezes intermittently while loading.
- Navigation system freezes after entering a particular address using
Voice Recognition.
- The voice guidance volume no longer changes After Ignition Off/On.
Once the Voice Guidance has been muted, the system retains that
setting even after switching the ignition Off/On.
- Invalid Destination Code message appears on the display while
listening to the radio.
- Spanish version FOTA (Firmware Over The Air) translation corrected.
- Mismatch of Speed Limit between Navigation display and the Speed
Limit displayed in the Combination Meter Multi-Function Display
(MFD).

3

8/16/2019

Rel_UE.19.22.70

Rel_UE.19.25.70**

Revised 15-236-18R, INCLUDES updates #1 & #2 above and
addresses these additional conditions:
- The steering wheel satellite controls for the audio/ navigation
system (other than volume control) and the audio/ navigation head
unit hard buttons (other than volume control) may become inoperative
intermittently.
- The setting for scheduling charging will terminate (Only Crosstrek
Hybrid).

Conditions Addressed:

- Station presets are lost
- Addition of the security enhancement

** NOTE: These Map Update Software I.D. numbers contain the same functional updates as the corresponding New Version I.D.
numbers.

Continued...
Bulletin Number: 15-236-18R; Revised: 06/10/25

Page 22 of 26

Update #

Release
Date:

NEW Version
ID #:

Map Update
Software ID #

4

12/18/19

Rel_UA.19.36.70

Rel_UA.19.42.70**
Rel_UF.20.28.70**

Revised 15-236-18R, INCLUDES updates #1, #2 and #3 above
and addresses these additional conditions:
- Navigation Route Calculation takes too much time.
- SXM Preset Program List is lost.
- Enhanced CD (e-CD) does not play.
- Voice recognition (VR) does not operate correctly.
- When the ignition switch is turned on, music in USB memory goes
back to track #1.
- Phonebook cannot be downloaded from a connected smart phone.
- When the ignition switch is turned on, a message of ‘Invalid
Destination Code’ is displayed.
- When using voice recognition for route searching, the state name is
recognized wrong.
- When MOTA (Map update Over The Air) is conducted, the map
display goes blank (white) temporarily. In case the customer
terminates the MOTA when in this condition, the map stays blank
(white). See NOTE 1 below.
- Hands Free conversation volume not loud enough compared to the
audio volume (unfavorable balance). See NOTE 2 below.
-Added function for SXM Weather Alert setup. See NOTE 3 below.

5

12/21/2020

Rel_UA.20.38.70

Rel_UA.20.41.70
Rel_UH.21.13.70
Rel_UA.21.41.70**
Rel_UA.22.05.45**

Revised 15-236-18R, INCLUDES updates #1 - #4 above and
addresses these additional conditions:
- Radio station information does not appear.
- Activation Code Not Accepted by Navigation System when updating
Map Data
- For 19MY NAVI models, the map data update over the air (MOTA)
is available using a mobile phone with the STARLINK App installed.
For 20MY models, this function was incorporated at the start of
production.
- If of over 1000 addresses are stored in Phonebook, some part of
Phonebook cannot be downloaded to the Head Unit.
- When reading out SMS (Short Message Service or text message) in
CarPlay, the voice breaks up or words are incorrectly pronounced.
- On push-button start models, the word “key fob” is deleted from
the note that appears when the operation setting of Rear Gate Unlock
Button is selected. (Rear Gate equipped models only.)
- When the iPhone is disconnected while playing music through the
CarPlay function, the music source is no longer selected automatically
(instead of automatically changing to RADIO.)
- When an iPhone (CarPlay allowed) is connected using USB, the
system moves to CarPlay screen no matter what is set in the menu in Setting. The Setting menu of
is applicable only on Android Auto.
- Repair Facility POI Icons are now shown on the NAVI map display.
See 2-1-4 for details.

Conditions Addressed:

Continued...
Bulletin Number: 15-236-18R; Revised: 06/10/25

Page 23 of 26

Update #

Release
Date:

NEW Version
ID #:

Map Update
Software ID #

6

7/27/2021

Rel_UH.20.52.70

Rel_UA.21.41.70**
Rel_UA.22.05.45**

Conditions Addressed:
Revised 15-236-18R, INCLUDES updates #1 - #4 above and
addresses these additional conditions:
- Minor hardware (GPS module supplier) change on SBR / SIA
production line.
NOTE:
1. The new version software is installed ONLY at the production line,
and NOT released as USB or FOTA update.
2. The Navi Head Unit part number does not change due to this
software update.
3. The functionality of the Head Unit is not affected by this software
update.
4. The above change will be implemented to production line from the
beginning of April 2021 production at SIA and the end of April 2021
production at SBR.

7

8/12/2022

Rel_UG.22.13.70

Rel_UG.22.39.70**

Revised 15-236-18R, INCLUDES updates #1 - #6 above and
addresses these additional conditions:
1)

No Audio when HK AMP is installed (added fail-safe function to
reset the external Harman Kardon amplifier in case of no sound
failure)

2)

Volume setting becomes inoperative

3)

Buzzing Noise following Head Unit reboot (CarPlay is reset with
noise)

4)

Head Unit is stuck in phone mode following completion of the
call

5)

Multiple audio sources are playing simultaneously

6)

Noise (random interruption) on AM radio

7)

Bluetooth handsfree call disconnect using iPhone

8)

Re-route search in Faster Route mode does not work

9)

is not shown completely in the pop-up menu
for Paid Map License Renewal

10) Voice recognition address search does not work in some states
in Mexico

Continued...
Bulletin Number: 15-236-18R; Revised: 06/10/25

Page 24 of 26

Update #

Release
Date:

NEW Version
ID #:

Map Update
Software ID #

8

5/10/2023

Rel_UK.22.49.70

Rel_UL.23.13.70 **

Conditions Addressed:
Revised 15-236-18R, INCLUDES updates #1 - #7 above and
addresses these additional conditions:
1)

Message “DCM FOTA In Progress” is displayed following IGN-ON

2)

Loss of Bluetooth pairing or difficulty connecting

3)

Music played via Bluetooth device is lost (skipped or
interrupted), when Apple Watch is being connected

4)

If multiple phones (phone A and phone B) are connected
via Bluetooth and phone A is playing music while phone B’s
registration is deleted, than phone A’s registration can’t be
deleted

5)

Android Auto does not launch

6)

When playing music with Android Auto, the sound or volume
control is lost

7)

Android Auto does not launch automatically using Android phone
connected prior to stopping CarPlay operation due to iPhone
disconnection

8)

CarPlay does not launch, after iPhone is connected

9)

Clock setting changes on its own, when the time is set in
manual mode

10) License confirmation logic improvement in Map Update process
11) USB Hub (AUX USB port) Reset function. Please follow TSB 15314-23 as well to confirm proper hardware is installed*
* Please follow TSB 15-314-23 to confirm proper hardware
is installed

9

12/15/2023

Rel_UK.23.16.70

Rel_UK.23.42.70**
Rel_UM.24.08.70**

Revised 15-236-18R, INCLUDES updates #1 - #8 above and
addresses these additional conditions:
1)

Error message appears and Android Auto does not start when
connected via USB cable

2)

No response to the operation on Android Auto screen

3)

Screen freezes while using Android Auto

4)

When an IGN cycle is performed while using Android Auto, the
registered phonebook is grayed out and phonebook favorites
disappear

5)

CarPlay widget is displayed on the taskbar when CarPlay is
launched, but the CarPlay icon is not displayed on the Home
screen

6)

Expansion of data storage for MOTA (data size limit per region
for MOTA is extended from 2 GB to 2.3 GB)

7)

Unable to play News on Google Assist

Continued...
Bulletin Number: 15-236-18R; Revised: 06/10/25

Page 25 of 26

Update #

Release
Date:

NEW Version
ID #:

10

11/8/2024

Rel_UK.24.09.70

Map Update
Software ID #

Conditions Addressed:
Revised 15-236-18R, INCLUDES updates #1 - #9 above and
addresses these additional conditions:
1)

11

06/16/2025

Rel_UK.25.04.70

This software update was solely prepared to renew the
electronic certificate programmed in the head unit to enjoy Map
update Over the Air (MOTA) service.

Revised 15-236-18R, INCLUDES updates #1 - #11 above and
addresses these additional conditions:
1) No sound from AM/FM radio.
2) Delay in AM/FM radio sound.

** NOTE: These Map Update Software I.D. numbers contain the same functional updates as the corresponding New Version I.D.
numbers.
NOTE 1: The MOTA operation is performed in two steps, i.e., Downloading (download the map data to the H/U via Wi-Fi) and
Overwriting (replace the map data to new one inside the H/U.) Before updating the software to Ver. 6, the map screen turns blank (white)
during the Downloading process until it is completed. If the customer stops (by turning off the H/U,) during the Downloading process, the
map display will stay in blank condition. The MOTA operation can be restarted even in this condition. After the Ver. 6 software is installed,
the map does not turn to blank (white) during Downloading. However, the map still turns to blank (white) during the Overwriting process,
which is a normal operating characteristic.
NOTE 2: To meet with customer expectations, Ver. 6 software will increase the Hands-Free conversation volume by 6dB against the
base audio volume. Customers will now be able to hear Hands Free conversation volume which used to be at audio volume level 30
at level 22 after installing this update. If the customer prefers the original Hands-Free conversation volume setting, it can be manually
adjusted by following: Home >> Settings >> Sound Tab >> Phone Volume >> then lowering the volume 6 - 8 steps.
The base audio volume setting chosen at the Factory Data Reset is at level 22 compared to the previous setting, which is level 30. (This
means customers will no longer have to adjust the base audio volume to get
comfortable Hands-Free conversation volume.)
NOTE 3: Added function for SXM Weather Alert is only applicable to HIGH grade head unit.

Bulletin Number: 15-236-18R; Revised: 06/10/25

Page 26 of 26