BMW X5 4x4 warning, brake, and ABS lights illuminated simultaneously after transfer case actuator gear replacement on BMW X5

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some BMW X5 owners report experiencing simultaneous illumination of the 4x4 warning, brake, and ABS lights after a transfer case actuator gear replacement, which may indicate various underlying issues. These owners have noted that low battery voltage can trigger these warning lights, while incorrect calibration of the steering angle sensor may also be a contributing factor. Additionally, problems with the wheel speed sensors or the ABS system have been reported to lead to these warning lights being activated. Furthermore, issues with the transfer box could be another potential cause for the warning lights to remain on. To accurately diagnose the specific problem, it is advisable for owners to have the codes read by a BMW dealer, a BMW specialist, or someone equipped with a scan tool to identify the exact cause and facilitate appropriate repairs.

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