2021 BMW 330i 'Replace Battery' Service Action

Symptoms of the 2021 BMW 330i Replace Battery Issue

Owners of certain 2021 BMW models, including the 2021 BMW 330i, may observe a red Check Control Message (CCM) on their instrument cluster stating: "Replace Battery". This message indicates a potential issue with the vehicle's power management system.

Diagnosis and Trigger Conditions

The root cause of the "Replace Battery" warning is a software error. This error intermittently causes the microcontroller within the power management system to continuously reset. This frequent resetting leads to the erroneous display of the "Replace Battery" message, even if the battery itself is not faulty. The issue affects the vehicle's EQUIPMENT and POWER TRAIN components.

Manufacturer's Remedy: Service Action 10198906

BMW has issued a SERVICE ACTION, identified by NHTSA Manufacturer Communication 10198906, to address the 2021 BMW 330i Replace Battery issue. This service action involves either programming or replacing the dual storage system battery. The specific action taken will depend on the diagnosis performed by a BMW authorized service center. This procedure aims to correct the software error and prevent the erroneous "Replace Battery" message from appearing.

What Owners Should Do

If you own a 2021 BMW 330i or another affected 2021 BMW model and are seeing the "Replace Battery" message, it is recommended to contact your authorized BMW dealership. Inform them about the "Replace Battery" warning and the associated SERVICE ACTION. The dealership will be able to diagnose the specific condition of your vehicle and perform the necessary programming or replacement of the dual storage system battery under this service action.

Source: NHTSA Manufacturer Communication 10198906