2022-2024 BMW Central Display Resets TSB 65 01 24

Owners of certain 2022-2024 BMW models may experience their Central Information Display going black intermittently due to unexpected resets of the Head Unit (HU-H3). This issue, identified by BMW TSB 65 01 24, can store a specific fault code in the vehicle's system. Addressing this BMW HU-H3 reset is crucial for proper infotainment system functionality.

Symptoms

The primary symptom owners will notice is the Central Information Display intermittently going black. This indicates that the Head Unit (HU-H3) is resetting unexpectedly.

Fault Codes / DTCs

When this issue occurs, the following fault code will be stored in the HU-H3:

• B7F8F9 - "HU-H: Reset"

Diagnosis / Trigger Conditions

This intermittent BMW HU-H3 reset is primarily caused by unfavorable software interaction between the Head Unit and downloaded applications. To diagnose the issue, technicians will determine the vehicle's current I-level using BMW's AIR or AWP applications. The repair procedure is initiated if the I-level is found to be lower than S18A-23-07-520.

Repair Procedure Summary

The correction involves updating the Head Unit (HU-H3) software and associated applications. The general steps for technicians are:

1. Check I-Level: Determine if the vehicle's current I-level is lower than S18A-23-07-520.
2. Program HU-H3: If the I-level is too low, program the vehicle to I-level S18A-23-07-520 or higher using ISTA 4.44.2x (released November 2023) or a later version.
3. Preparation: Connect a BMW-approved battery charger to the vehicle and connect the programming system (ISTA 4).
4. Execute Measures Plan: Determine and fully work through the measures plan, ensuring all control units are programmed, encoded, and enabled.
5. Rework and Test: Follow the rework list, carry out a vehicle test, and delete any stored fault memory.
6. Update Apps: Update all apps and services stored in the vehicle. This can typically be done through the path: Apps > Installed Apps > Options > Update Apps and Services.
7. Final Check: After programming is complete, verify the system's functionality. If the fault persists, further steps may be required.

Important Warnings

• Do not program the vehicle if the I-level is currently at S18A-23-07-520 or a more recent version.
• Always connect a BMW-approved battery charger/power supply (refer to SI B04 23 10) to maintain stable voltage during programming.
• ISTA will automatically reprogram and code all programmable control modules that do not have the latest software.

Owner Action

If your 2022-2024 BMW experiences an intermittent BMW HU-H3 reset, or if you see the "HU-H: Reset" message, it indicates a known software issue. You should contact your authorized BMW dealer to schedule a service appointment. The repair involves a software update, which is typically covered under the terms of the BMW New Vehicle Limited Warranty or the BMW Certified Pre-Owned Program.

Source: NHTSA Manufacturer Communication 10249032