2022-2024 BMW Seat Memory Loss SIB 52 02 24

Symptoms of Seat Initialization and Memory Loss

Owners of certain 2022-2024 BMW models, including the BMW i5, may encounter issues with their seat initialization and memory functions. This can manifest as the loss of previously set seat positions or a repeated failure of seat initialization even after diagnostic attempts. In some cases, drivers might also see specific check control messages (CCM) displayed in the instrument cluster:

• "CCM 108 'Driver restraint system'"
• "CCM 109 'Passenger restraint system'"

These warnings indicate a potential problem with the vehicle's restraint system, which is linked to the seat's proper functioning.

Cause of the Issue

According to BMW SIB 52 02 24, the root cause of the seat initialization and memory loss, and the associated restraint system warnings, is typically unfavorable software within the Basic Central Platform (BCP) control module. Alternatively, an error in the seat standardization test module within the ISTA diagnostic system could also be a contributing factor.

Repair Procedure Summary

To correct the BMW i5 seat memory loss and related issues, a software update is required. The procedure involves several steps performed by a qualified technician:

1. Determine Current I-level: The technician will first determine the vehicle's current integration level (I-level) using BMW's diagnostic applications, such as AIR or ISPA Next/AWP (Aftersales Workplace).
2. Check Target Integration Level: The current I-level is then compared against specific target integration levels for the affected models. If the vehicle's I-level is lower than the specified target, programming is necessary.
   • For G60 (i5 Sedan) and G70 (i7 Sedan) models, the target integration level is G070-23-11-500.
   • For i20 (iX Sports Activity Vehicle) models, the target is I020-23-11-500.
   • For U10 (X2 Sports Activity Coupe) and U11 (X1 Sports Activity Vehicle) models, the target is U006-23-11-500.
3. Program Vehicle: If the I-level is found to be lower, the vehicle must be programmed using ISTA 4.44.2 (released in November 2023) or a higher version. This process will automatically reprogram and code all programmable control modules that do not have the latest software.
4. Functionality Check: After the programming is completed, the technician will perform a functionality check to ensure the seat initialization, memory, and restraint systems are operating correctly.

Important Warnings

Technicians are advised to always connect a BMW-approved battery charger/power supply during programming to maintain stable voltage. This is critical to prevent potential issues during the software update process, as detailed in BMW Service Information SI B04 23 10.

Claim Information

For warranty claims related to this issue, BMW specifies Repair Code 6138450200, which covers