2024 BMW Parking Assistance Limited Check Control Message

Symptoms

Owners of certain 2024 BMW models may observe a "Parking Assistance Limited" check control message displayed in the instrument cluster. This warning indicates that the parking assistance systems have reduced functionality due to errors detected within the Park Distance Control (PDC) sensors. The message typically states: "Reduced parking assistance: Please park without assistance. Sensor's field of view impaired. Other driver assistance systems may also be reduced."

Fault Codes / DTCs

When the "BMW parking assistance limited" message appears, one or more of the following fault codes may be stored in the vehicle's system:

Code	Description
8031BA	Ultrasonic Sensor Rear Side Left Software Error
8031C0	Ultrasonic Sensor Rear outer left Software error
8031AE	Ultrasonic Sensor Rear Outer Right Software Error
8031A8	Ultrasonic Sensor Rear Side Right Software Error
8031B4	Ultrasonic Sensor Rear Middle Right Software Error
8031C6	Ultrasonic Sensor Rear Middle Left Software Error

Cause

The root cause for the "BMW parking assistance limited" check control message can be attributed to several factors. These include environmental influences, potential component degradation, or issues with the software of the Ultrasonic Control and Actuator Package (UCAP) module.

Repair Procedure Summary

BMW Service Information Bulletin SIB 66 03 25 (Revision 3, dated July 14, 2025) outlines the procedure to address the "BMW parking assistance limited" issue. This bulletin supersedes SI B66 03 25 dated May 22nd, 2025.

Initially, technicians will consult with the customer to determine if environmental factors (such as specific locations, roads, or times of day) might be contributing to the check control message. If a pattern suggesting environmental influence is identified, a road test with another vehicle may be performed for verification.

If environmental factors are ruled out, standard diagnostic procedures are followed to identify any component failures (e.g., PDC sensors, wiring). If the test plan ABL-DIT-AT6621_20_USS_UCAP indicates, the UCAP module requires reprogramming.

The vehicle's I-level must be updated to version 25-07-530 or a more recent version, using ISTA 4.54.3x or higher. The programming process involves connecting a BMW-approved battery charger/power supply (as per SI B04 23 10), connecting the programming system (ISTA 4), determining a measures plan, programming and encoding the affected control units, following any rework lists, performing a vehicle test, and clearing fault memory.

Required Tools or Parts

• BMW-approved battery charger/power supply (refer to SI B04 23 10 for details)
• ISTA 4 programming system (version 4.54.3x or higher)

Important Warnings

• Always connect a BMW-approved battery charger/power supply (SI B04 23 10) to the vehicle during the programming procedure to maintain stable voltage.
• ISTA will automatically reprogram and code all programmable control modules that do not have the latest software during this process.
• If one or more control modules fail during the reprogramming, additional repair work may be required. These consequential repairs should be claimed under the Repair Code 6655030200, along with corresponding labor operation codes and flat rate unit (FRU) allowances.

Claim Information

Repairs performed under this Service Information Bulletin are typically covered under the terms of the BMW New Vehicle Limited Warranty or the BMW Certified Pre-Owned Program. The Repair Code for this issue is 6655030200, which covers "Control unit, Autonomous Parking Camera Software error / internal device fault." Applicable labor operations include 00 00 006, 00 00 556, 61 21 528, 61 00 006*, 00 58 500*, and 61 00 730.

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Source: NHTSA ID: 11020916