Technical Service Bulletin (TSB)
R1H Radio USB Update to U39P.2
REFERENCE:

TSB: 08-146-26
GROUP: 08 - Electrical

Date:

April 9, 2026

VEHICLES
AFFECTED:

2026 (DT) RAM 1500 Pickup
This bulletin applies to vehicles built on or before July 21, 2025 (MDH
0721XX) equipped with Uconnect 5 Nav w 12.0" Display (Sales Codes
UBQ, UEQ, UFQ and UPQ) or Uconnect 5 NAV W 14.4" Display (Sales
Codes UBW, UEW, UFW and UPW).

REVISION: -

MARKET APPLICABILITY:
NA

MEA

SA

IAP

EE

CH

NOTE: This bulletin applies to
the North and South
America, Enlarged
Europe, India & Asia
Pacific, Middle East
& Africa and China
markets.
CUSTOMER
SYMPTOM:

Customers may experience one or more of the following:
● Navigation highly inaccurate.
● Compass intermittently shows "--" in cluster.
● Navigation stuck at the same location.
● Screen OFF hard key inoperative.

CAUSE:

Radio software

REPAIR SUMMARY:
This bulletin involves inspecting and if required, updating the radio software level to U39P.2.

B08 FSAR-TSB-6953

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CLAIMS DATA:

Labor Operation No:
18-60-F2-D3

18-60-F2-D4

Failure Code

Labor Description
Skill Category
Radio, Software - Create 6 - Electrical and Body
Systems
USB Jump Drive from
Uconnect Website U39P.2
(One Time Only)
(0 - Introduction)
6 - Electrical and Body
Radio, Check Software
Systems
Level and Perform
Software Update U39P.2
(0 - Introduction)
CC
Customer Concern

Labor Time
0.2 Hrs.

0.6 Hrs.

The dealer must use failure code CC with this Technical Service Bulletin.
● If the customer’s concern matches the SYMPTOM identified in the Technical Service Bulletin, failure code
CC is to be used.
● When utilizing this failure code, the 3C’s (customer’s concern, cause and correction) must be provided for
processing Technical Service Bulletin flash/reprogramming conditions.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerCONNECT/
Service Library, verify all related systems are functioning as designed. If Diagnostic Trouble Codes (DTCs) or
symptom conditions, other than the ones listed above are present, record the issues on the repair order and
repair as necessary before proceeding further with this bulletin.
If the customer describes any of the symptoms listed above in the customer symptom section, perform the
Repair Procedure.
SPECIAL TOOLS/EQUIPMENT:

Description
wiTECH or Equivalent

Ref. No.
–

Notes
–

REPAIR PROCEDURE:
NOTE: Check and update display module software if needed before performing radio update.
NOTE: A USB-C Jump Drive of at least 4 GB of space is required for this update. It is also
recommended to use a quality, name brand (Kingston®) flash drive over a generic USB-C Jump
Drive.
1. Check if the radio software has been updated. Go to “Vehicle Settings” then select "System
Information”and look for “Radio Version”.
2. Was the radio software at or above U39P.2?
● YES >>> This bulletin does not apply.
● NO >>> Proceed to Step 3.
3. Has a 4 GB USB-C Jump Drive been created?
● YES>>> Proceed to Step 12.

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B08 FSAR-TSB-6953

● NO>>> Proceed to Step 4.
4. Go to DealerCONNECT>Service>Uconnect Command Center>Uconnect>Dealer software downloads to
download the files.
5. If a security message appears “Do you want to view only the web page content that was delivered
securely?” Fig. 1. Press “No” to continue.

Fig. 1
Pop-Up Security Message
NOTE: If the software cannot be downloaded, make sure you have proper security access. If not,
have the Service Manager or Shop Foreman download the software update.
6. Use a blank USB-C Jump Drive with at least 4 GB of space. Follow the on-screen instructions to download
the software files.
NOTE: When downloading the software file, always select the MAC version, regardless of the
computer being used.
7. Download the software update file to your local PC's desktop. Make sure to select the “MAC” button for all
downloads Fig. 2.

Fig. 2
MAC Button
8. Download the radio software from DealerConnect to a blank USB-C Jump Drive. The USB-C Jump Drive
should be at least 4 GB and formatted to NTFS.
9. There should only be one file on the USB root directory labeled as a “.zip” folder.
10. Do not unzip the folder/file and move all contents to the root directory of the USB.
11. Once the USB-C Jump Drive have been created, it is recommended to label the USB-C Jump Drive with
the bulletin number and proper radio Sales Codes.
12. Start the vehicle and insert the correct USB-C Jump Drive with new software into the USB-C port.

B08 FSAR-TSB-6953

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CAUTION!
Make sure no other device is plugged into any of the USB ports while performing this software
update. If other devices are connected to USB ports during this procedure, it may cause a failure of
files to be loaded which can cause the radio to need replacement.
13. Once the system has verified there is an available update, press the “Update Now” button. Make sure the
vehicle is in park. Do NOT turn the ignition off until the two minute timer has expired. The ignition
doesn't have to be turned off to update the radio's software Fig. 3.

Fig. 3
Software Update
14. Press the “Continue” on the display screen Fig. 4.

Fig. 4
Software Updating
15. The radio will reboot and the software update will begin. The software update should only take 30 minutes
Fig. 5.
NOTE: DO NOT turn off the vehicle when the software update is completed and told to remove the
USB-C Jump Drive.

Fig. 5
Update Successful

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B08 FSAR-TSB-6953

NOTE: Vehicle should be running the entire time.
16. DO NOT turn off the ignition at this point. The software update is still in process. Wait until the radio
restarts and the home screen is displayed. This should take around five minutes.
17. If the radio displays an error pop up “ SWITCH-INVALID_BINARY“ after successful radio update, ignore
this error message and press “OK” to continue Fig. 6.

Fig. 6
Update Failed
18. Press “OK” to continue Fig. 7.

Fig. 7
Completed Update
19. Check if the radio software level has been updated. Go to “Vehicle Settings” then select “System
Information” and look for “Radio Version”.
20. Was the radio updated to U39P.2?
● YES >>> Proceed to Step 21.
● NO >>> Perform the software update one more time. Proceed to Step 12.
21. Select and run "Perform Factory Reset". This can be found in the radio menu under Vehicle Settings >
Reset > Perform Factory Reset.
22. Once the factory reset is completed, turn off the ignition, open and closed the drivers door and then let all
modules go to sleep. Make sure the scan tool is NOT connected to the vehicle.
23. After all the modules have been in sleep mode for five minutes, turn the ignition back on.
24. Before clearing all DTCs, cycle the ignition OFF and back to RUN quickly (within two seconds).
25. Using the wiTECH, clear all DTCs that may have been set in any module due to reprogramming.
NOTE: For SA market only, after applying this TSB, it is not necessary to send DID-I or DID-A.

POLICY:
Reimbursable within the provisions of the warranty.
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.