Technical Service Bulletin (TSB)
R1H Radio U33.43 USB Software Update
REFERENCE:

TSB: 08-266-25
GROUP: 08 - Electrical

Date:

August 16, 2025

VEHICLES
AFFECTED:

2021 - 2023 (WL) Jeep Grand Cherokee/Grand Cherokee L
This bulletin applies to vehicles equipped with the following radios:
● Uconnect 5 NAV w 8.4" Display (KOR) (Sales Code URL).
● Uconnect 5 NAV w 10.1" Display (KOR) (Sales Code URN).

REVISION: —

MARKET APPLICABILITY:
NA

MEA

SA

IAP

EE

CH

NOTE: This bulletin applies to
the India & Asia Pacific
market.
CUSTOMER
SYMPTOM:

Customers may comment on one or more of the following:
● WI-FI Software update pop up is being triggered in non connected vehicles.
● Vehicle Forward Collision Warning must have two options: OFF/ Warning + Active Braking.
● Temperature shows at upper left and right of center display highlights opposite side of what temperature
hard switch is pressed. Affects RHD only.
● With key on and radio on, The radio display freezes then restarts.
● Radio is taking more than one minute to start after starting the engine.
● System displays a blank screen in E-Hybrid tab when user switches into dark-theme mode.

CAUSE:

Radio software

REPAIR SUMMARY:
This bulletin involves inspecting and if required, updating the radio software level to U33.43. Depending on the
radio’s current software level the radio may need a one or two step USB update.

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CLAIMS DATA:

Labor Operation No:
18-60-02-AR

18-60-02-AU

18-60-02-AV

18-60-02-AW

Failure Code

Labor Description
Radio, Software - Create
USB Jump Drive from
Uconnect Website (One
Time Only) U29.42
(0 - Introduction)
Radio, Software - Create
USB Jump Drive from
Uconnect Website (One
Time Only)U33.43
(0 - Introduction)
Radio - Inspect Software
Level and Perform
Software Update (One
Step Update)
(0 - Introduction)
Radio - Inspect Software
Level and Perform
Software Update (Two
Step Update)
(0 - Introduction)
CC

Skill Category
6 - Electrical and Body
Systems

Labor Time
0.2 Hrs.

6 - Electrical and Body
Systems

0.2 Hrs.

6 - Electrical and Body
Systems

0.7 Hrs.

6 - Electrical and Body
Systems

1.3 Hrs.

Customer Concern

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
–

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B08 FSAR-TSB-4625

REPAIR PROCEDURE:
NOTE: Check and update display module software if needed before performing radio update.
NOTE: A 20GB and/or 4GB USB flash drive is required for this update. It is also recommended to use a
quality, name brand (Kingston®) flash drive over a generic USB flash drive.
1. Check if the radio software has been updated. Go to “Vehicle Settings” then select "System
Information”and look for “Radio Version”.
2. What is the current radio software level (Application Version)?
● U33.43 or higher >>> The radio software is already up to date. Normal diagnostics should be
performed.
● At or above U29.42 and under U33.43 >>> The radio will only need one USB update. Proceed to Step
3.
● Under U29.42 >>> The radio will need two USB updates. Proceed to Step 3.
NOTE: ● For the U29.42 update use a 20 GB flash drive.
● For the U33.43 update use a 4 GB flash drive.
3. Has a 20GB or 4GB USB flash drive been created?
● YES>>> Proceed to Step 12.
● NO>>> Proceed to Step 4.
4. Go to DealerCONNECT>Service>Uconnect Command Center>Uconnect>More Information >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 flash drive with at least 20GB or 4GB 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.

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7. Download the software update file to your local PC's desktop. Make sure to select the “MAC” radial button
for all downloads Fig. 2.

Fig. 2
MAC Radial Button
8. Download the radio software from DealerConnect to a blank USB flash drive. The USB flash drive should
be at least 20GB and formatted to NTFS and/or a 4GB and formatted to FAT32.
NOTE: ● The U29.42 flash drive should be formatted to NTFS.
● The U33.43 flash drive should be formatted to FAT32.
9. There should only be one file on the USB root directory labeled as a “fca-my24-prod-signed-usb_updateU29.42.MASTER.RW-fullupdate.zip” folder for the U29.42 update.
● For the U33.43 Update, download “fca-my24-prod-signed-usb_update-U33.43.MASTER.RWfullupdate.zip” Fig. 3.

Fig. 3
Zip Folder
10. Do not unzip the folder/file and move all contents to the root directory of the USB.
11. Once the USB flash drive have been created, it is recommended to label the USB flash drive with the
bulletin number and proper radio Sales Codes.
12. Turn the engine on and insert the correct USB flash drive with new software into the USB port.
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.

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B08 FSAR-TSB-4625

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. 4 .

Fig. 4
Software Update
14. Press the “Continue” on the display screen Fig. 5.

Fig. 5
Software Updating
15. The radio will reboot and the software update will begin. The software update should only take 30 minutes
Fig. 6.
NOTE: DO NOT turn off the vehicle when the software update is completed and told to remove the
USB flash drive.

Fig. 6
Update Successful
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.

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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. 7.

Fig. 7
Update Failed
18. Press “OK” to continue Fig. 8.

Fig. 8
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. What is the current radio software level?
● U29.42 >>> Radio will still need one more USB flash drive update. Perform the update one more time.
Proceed to Step 3.
● U33.43 >>> Radio update is complete. Proceed to Step 21.
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 close the driver's 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: Suggest to customer to repeat the wireless device pairing again after deleting the existing
pairing from the phone.

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B08 FSAR-TSB-4625

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.