2021 BMW Dual Storage System (DSS) Check TSB

Understanding the Dual Storage System (DSS)

The Dual Storage System (DSS) is a critical component within the electrical system of certain 2021 BMW vehicles. This system typically incorporates two batteries and is designed to manage the vehicle's power supply effectively. Its primary function includes ensuring stable electrical operation and supporting various vehicle systems.

Safety Functionality in an Accident

A key safety feature of the Dual Storage System (DSS) is its ability to disconnect from the vehicle's main electrical system in the event of an accident. This disconnection is achieved via an internal relay. This mechanism is crucial for preventing potential electrical hazards and ensuring the safety of vehicle occupants and emergency responders after a collision.

What this 2021 BMW 330i Manufacturer Communication Advises

This manufacturer communication, identified as NHTSA ID 10187479, highlights the importance of inspecting the Dual Storage System (DSS) following an accident. Specifically, it advises that the DSS should be thoroughly checked by qualified technicians. If the inspection reveals any issues or if the system's integrity is compromised due to the accident, replacement of the DSS is necessary to restore proper electrical system function and safety. This 2021 BMW 330i manufacturer_communication is vital for post-accident vehicle assessment.

Owner Action

If your 2021 BMW vehicle, including models like the 330i, has been involved in an accident, it is crucial to ensure that the Dual Storage System (DSS) is inspected as part of the post-collision repair process. Consult with an authorized BMW service center or a certified repair facility to have the electrical system, particularly the DSS, evaluated. This proactive step ensures that all safety features are functioning correctly and that your vehicle's electrical system remains reliable.

Source: NHTSA ID 10187479