Technical Service Bulletin (TSB)
Radio Over The Air S26.18 Updating to T25.50 Software Version
REFERENCE:

TSB: 08-046-23
REV. A
GROUP 08 Electrical

VEHICLES
AFFECTED:

2023 (WL) Jeep Grand Cherokee
2023 (WS) Grand Wagoneer/Wagoneer
**This bulletin applies to WL vehicles built on or
before February 17, 2023 (MDH 0217XX) equipped
with one of the following radios:
This bulletin applies to WS vehicles built on or
before February 14, 2023 (MDH 0214XX) equipped
with one of the following radios:**
• Uconnect 5 NAV W 8.4” Display (Sales Codes
UBL, UBR, UER or UEL).
• Uconnect 5 NAV W 10.1” Display (Sales
Codes UBN or UEN).
• Uconnect 5 NAV W 12” Display (Sales Codes
UBQ or UEQ).

CUSTOMER
SYMPTOM:

Date:

April 5,
2023

REVISION:

08-046-23

MARKET APPLICABILITY:
HNA
□MEA
□SA

□IAP

□EE

□CH

Customers may experience one or more of the following:
• Amplifier module sets Diagnostic Trouble Code (DTC) U0485 - Implausible Data Received Set.
• Radio reset (Rearview camera functions normally).
• Voice Recognition (VR) inoperable.
• Wireless CarPlayT inoperable.
• Audio sources inoperable.
• Display switches to Nav on VR prompt.
• Vehicle Positioning (Lat/Long) inoperable.
• Surround View Camera inoperable (Rearview camera functions normally).
• Unable to exit FamCam.
• Audio Repetition inoperable.
• Electric vehicle pages inoperable.
• Translated text is incorrect.
• Profile avatar changes in Valet Mode.
• Display does not return to idle mode after call.
• Dynamic rear view camera guidelines inoperable.
• FOTA popup won’t dismiss.
• Ambient Lights Setting inoperable.
• Call Status on after all ended Favorites available in valet mode.
• SXMT Favorites inoperable.
• Tutorial App inoperable.
• Audio Repetition stops during incoming calls.
• Unable to connect second device.
• Unable to exit Seat Comfort popup.
• Call does not end on the Instrument Panel Cluster (IPC).
• Seat Comfort graphic incorrect.
• Headphone button for front passenger display inoperable.
• Schedule update inoperable.
• USB media source inoperable on front passenger display.
• SXMT inoperable.
• Wireless Android Auto inoperable.

08-046-23 REV. A
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
CAUSE:

-2Media sources duplicated.
Audio unmuted at door close.
Radio freeze (Rearview camera functions normally).
Radio input lagging.
Navigation active with no active route.
Scheduled cabin cooling inoperable.
Incorrect phone repetition displayed.
Navigation routing inoperable.
Unable to exit electric vehicle Pages.
Comfort softkeys incorrect.
Comfort graphic overlap.
Unable to change audio sources.
Audio sources unavailable after profile switch.
No incoming call popup on Uconnect phone.
FamCam image in black and white.
SOS call status banner remains after call ended.
Press and hold inoperable on comfort temperature slider.
Setting preferences will not return to default.
Display input lagging after CarPlayT is connected.
Changed to unselected audio source.
Setting preferences not saved on correct profile.
Translation error in Portuguese.
Memory seats not saved on correct profile.
Audio loss.
Incorrect keyboard in Japanese.
SXMT channel art incorrect.
Rear Seat Entertainment (RSE) audio overlap.
European Media Source (DAB) available on North America vehicles.
Black screen (Rearview camera functions normally).
Unable to delete profile.
Assist call inoperable.
Unable to navigate menu with ongoing SOS call.

Radio Software

This bulletin supersedes Technical Service Bulletin (TSB) 08-046-23, date of issue February 10, 2023,
which should be removed from your files. All revisions are highlighted with **asterisks** and include
updated clean dates and national launch date.
REPAIR SUMMARY:
This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides
the service technician an overview of the steps a customer will need to take to complete the update. The
radio software will be updated from S26.18 to T25.50.
NOTE: The national launch for the FOTA is expected to begin February 6, 2023.

-3-

08-046-23 REV. A

DISCUSSION:
Vehicles sold in the U.S. and Canada can now receive software updates “over-the-air”. Updates to software
will occur in a phased roll-out. The software is updated through a built-in cellular modem in the vehicle.
Customers will see a notification on their radio screen when new software is available for their radio (Fig. 1) .
The owner will have the option to update the radio or schedule the update for later. There is not an option
to decline the update indefinitely, the update must be performed.
NOTE: This is an Information Only Technical Service Bulletin to inform the dealer how the FOTA
update is performed. This document does not contain a LOP for reimbursement.

Fig. 1
Software Acceptance Screen

1. The vehicle needs to be in ‘Park’. The ignition needs to be in the off position.
2. If the customer selects “Update Now” (Fig. 1) they can shut off the vehicle and leave. The update will be
completed automatically.
NOTE: This step may take several minutes to complete.

08-046-23 REV. A

-4-

3. Upon completion of update, the radio will display a confirmation message (Fig. 2) .

Fig. 2
Software Update Confirmation Screen

POLICY:
Information Only
This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of FCA US LLC.