BMW X5 4x4 inactive and ABS light issue affecting vehicle speed on BMW X5

Some BMW X5 owners report experiencing issues with the 4x4 inactive and ABS light, which can affect vehicle speed and indicate potential problems with the all-wheel drive system. These owners note that the illumination of the 4x4/xDrive light suggests a need for attention to prevent further damage or safety concerns. Additionally, the ABS light may signal various issues, such as a short circuit, broken wire, blown fuse, or a malfunctioning speed sensor, which disables the anti-lock braking system. If the BRAKE light also activates, it indicates a serious braking system malfunction that requires immediate attention to prevent brake failure. Common causes for these warning lights include low battery voltage, steering angle sensor calibration issues, and wheel speed sensor problems. To accurately diagnose the issue, some owners recommend reading the fault memory from the vehicle, as a faulty wheel speed sensor may need replacement, typically costing around $150. It is advised that owners consult a BMW specialist for thorough diagnostics and necessary repairs to ensure safe vehicle operation.