NHTSA ID Number: 11034443
Manufacturer Communication Number: SA-039-26
TSB/Document Date: 2026-07-03
Summary
This Service Alert supersedes the previously issued SA listed below. The changes are noted in Red text. SA-012/25 10/06/25, 08/21/25, 05/15/25 and 02/27/25 DESCRIPTION Customers having MAZDA
CONNECT concerns should have their vehicle repaired using the following repair procedure. REPAIR PROCEDURE NOTE: Before proceeding: Document the vehicle's current MAZDA CONNECT CMU software version. • 2019-2022 Models - Go to TSB 16-003/23 and confirm the CMU Serial Number is not within the affected range. • Document customer device Brand/Model/Model Number/software version on the repair order. • Confirm that the Connectivity Master Unit (CMU) is updated to the latest software version. Go to MGSS -> Infotainment -> MAZDA CONNECT Updates ○ • If possible, complete the Microsoft Forms Questionnaire. Go to MGSS -> Infotainment -> MAZDA CONNECT Questionnaire.
No
The customers device is not compatible.
Does the same symptom occur
on another same model/year
vehicle?
Yes
Go to step 9.
8
No
Go to step 10.
9
Reboot the customers device.
Does Bluetooth work correctly?
Yes
Vehicle operation is normal.
No
Go to step 10.
Is the Bluetooth device in a place
where radio waves may be
10 blocked?
(Behind or under a sheet, in a
box, in a purse/bag, ext.)
Yes
Move the Bluetooth device away from hidden location.
No
Go to step 11.
Is the Bluetooth device contacting
or blocked by metal objects?
Yes
Move the Bluetooth device away from metal objects.
No
Go to step 12.
Is a Bluetooth device and a USB
12 device connected at the same
time?
Yes
Disconnect other USB device.
No
Go to step 13.
Does the problem occur in a
specific geological location only?
Yes
Move to a different location.
This may be caused by electrical interference by radio
stations, specific small power radio stations, or amateur
radio stations for mobile identification used in industrial,
scientific and medical devices.
No
Go to step 14.
Does the same symptom occur
on another Bluetooth device?
Yes
Go to step 15.
No
The customers device is not compatible.
11
13
14
Check / Replace the CMU.
Does the voice recognition
system operate using other
15
functions such as Bluetooth
Audio?
Yes
No
• Document date and time of the condition.
• Retrieve CMU log data if possible before replacing
the CMU.
Important Note
• Retrieve CMU backup data if possible before
replacing the CMU.
• If necessary, contact Hotline for additional
support.
• See Warranty Information Note.
○
Go to No. 8 Voice Recognition Does Not Work.
Page 13 of 35
06/16/2026 02:24 PM tlawrenc
No. 9 Cannot Play Bluetooth Audio
Step
Inspection
Result
Action
1
Using M-MDS, are any infotainment
system DTC's stored?
Yes
Go to MGSS for DTC diagnosis
No
Go to step 2.
2
Is Bluetooth enabled on the customers
device?
Yes
Go to step 3.
No
Enable Bluetooth on the customers device.
Is the customers device data service
strength good?
Yes
Go to step 4.
3
No
Move to a location where data service strength
is good and retest.
Is the customers device battery strength
good?
Yes
Go to step 5.
4
No
Connect the customers device to a charger or
recharge the device, then retest.
5
Is the customers device paired to the
vehicle?
Yes
Go to step 6.
No
Pair the customers device to the vehicle.
Is the customers device selected in
MAZDA CONNECT settings?
Yes
Go to step 7.
6
No
Select the customers device from Bluetooth
settings.
Delete the device from MAZDA
CONNECT and then re-pair it.
Does Bluetooth work correctly?
Yes
Normal Operation.
7
No
Go to step 8.
Go to connect.mazda.com -> Support ->
Compatibility.
Is the customers device compatible?
Yes
Go to step 9.
8
No
The customers device is not compatible.
9
Does the same symptom occur on another
same model/year vehicle?
Yes
Go to step 10.
No
Go to step 11.
10
Reboot the customers device. Does
Bluetooth work correctly?
Yes
Vehicle operation is normal.
No
Go to step 11.
Yes
Move the Bluetooth device away from hidden
location.
No
Go to step 12.
Yes
Move the Bluetooth device away from metal
objects.
No
Go to step 13.
Yes
Disconnect other USB device.
Is the Bluetooth device in a place where
radio waves may be blocked?
11
(Behind or under a sheet, in a box, in a
purse/bag, ext.)
12
Is the Bluetooth device contacting or
blocked by metal objects?
Is a Bluetooth device and a USB device
13
connected at the same time?
Check / Replace the CMU.
No
• Document date and time of the condition.
• Retrieve CMU log data if possible before
Page 14 of 35
06/16/2026 02:24 PM tlawrenc
replacing the CMU.
Important Note
• Retrieve CMU backup data if possible
before replacing the CMU.
• If necessary, contact Hotline for
additional support.
• See Warranty Information Note.
○
No. 10 SiriusXM Inoperative and/or No Audio Sound
Step
1
2
Inspection
Using M-MDS, are any infotainment system DTC's stored?
Using eMDCS, is the vehicle equipped with SiriusXM?
Result
Yes
No
Go to step 2.
Yes
Go to step 3.
No
Inspection complete. Notify
the customer that the vehicle
is not equipped with
SiriusXM.
From the main menu,
•
•
•
•
3
4
Select Entertainment
Select Menu
Select Source List
Select SiriusXM
No issue on vehicle side.
Yes
Is Ch. 001 SiriusXM visible and has audio sound?
Using eMDCS, is there any history of a Remote Tuner
replacement?
•
•
•
•
Select Entertainment
Select Menu
Select Source List
Select SiriusXM
Go to step 6 and retrieve
SiriusXM Radio ID and
provide it for the customer.
Then advise the customer to
contact SiriusXM at 844 7118800 for support.
No
Go to step 4.
Yes
Go to step 5.
No
Go to step 6.
Yes
Possible Cause: The
Remote Tuner was previous
swapped from another
vehicle.
From the main menu,
5
Action
Go to MGSS for DTC
diagnosis
Note: Remote Tuners are
VIN locked, so they cannot be
Page 15 of 35
06/16/2026 02:24 PM tlawrenc
Is the following Siruis XM screen displayed with:
swapped from another
vehicle.
• No Channel List?
• No Audio Sound?
• Blank data as shown below?
Repair Options:
1. Retrieve the original
Remote Tuner and
install it, then return to
step 3.
2. Replace the Remote
Tuner, then go to step
6.
No
Go to step 6.
Retrieve SiriusXM Radio ID
•
•
•
•
•
•
6.
Select Entertainment
Select Menu
Select Source List
Select SiriusXM
Select Channel List
Select Ch. 000: RADIO ID
Go to step 7.
Document SiriusXM Radio ID
Provide the SiriusXM Radio ID from step 6 to the customer
and advise the customer to contact SiriusXM at 844 7118800
Yes
Repair Complete.
No
Contact Hotline for additional
support.
If the Remote Tuner was replaced, inform the SiriusXM
agent so that they can register the new SiriusXM Radio ID to
the VIN (see SA-038/25).
7
Is Ch. 001 SiriusXM now visible and has audio sound?
No. 11 Wireless Apple CarPlay/Android Auto will not connect
Page 16 of 35
06/16/2026 02:24 PM tlawrenc
1 Is the vehicle equipped with Wireless Apple Carplay/Wireless Android
Auto?
Yes - Go to next step.
Go to MGSS --> DIAGNOSTIC ASSIST FUNCTION [CMU] -->
Diagnostic Test --> Vehicle Information --> Carplay/Android_Auto
No - Advise the customer
that the vehicle is not
equipped with Wireless
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TSB/Document ID: SA-039-26
Replacement Service Bulletin Number:
MFR Communication Date: 2026-06-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem: Mazda Connect
Previous TSB | Next TSB |
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