BYD recalls 89,000 units of the Qin Plus sedan in China due to battery system failure

The automotive manufacturer began a broad preventive recall process involving almost 90 thousand units of the hybrid model in its domestic market. The regulatory measure comes after the identification of a manufacturing defect in energy storage components, which could compromise the safe operation of affected vehicles during daily driving.

The Chinese government’s supervisory body, Administração Estatal of Regulação of Mercado, made the directive official after a series of detailed technical investigations into the operation of the powertrain. The cars involved in this safety campaign were assembled on production lines between January 2021 and September 2023, a period in which the model recorded high volumes of registrations in the Asian country.

Sedan owners began to receive formal notifications through corporate digital channels, providing guidance on the technical procedures necessary to regularize the fleet. The automaker established an immediate service protocol to mitigate the risks associated with sudden loss of power, mobilizing its dealer network to meet the demand generated by the official call.

Technical details of the operational failure

The central problem lies in an anomaly in the energy cell management system, which presents premature wear under specific conditions of continuous use. Quando the vehicle is subjected to long periods of demand, the integrity of the internal component can be severely compromised, generating an imbalance in the load distribution to the main electric motor.

Situations of high electrical demand generate localized overheating, resulting in an internal communication failure in the traction control module. Esse extreme scenario can lead to a sudden interruption of the power supply, immobilizing the car on public roads and increasing the risk of thermal incidents if the driver does not adopt the immediate stopping procedures recommended by the owner’s manual.

Remote update procedures

The initial remediation strategy involves the use of wireless data transmission technology, known in the automotive industry as remote software updating. The brand’s engineers developed a specific data package to recalibrate the control module’s safety parameters, allowing quick intervention without the immediate need to physically travel to a workshop.

This digital upgrade allows the vehicle’s sensors to early identify any abnormal variations in the temperature or voltage of individual power cells. The system starts to act preventively and autonomously, limiting power delivery before irreversible physical damage to the equipment occurs, ensuring that the driver is able to drive the car to a safe location.

Vehicles that do not have an active connection to the manufacturer’s data network will need to be physically directed to an authorized dealership to carry out the procedure. Technicians will install the new monitoring program directly through the standardized diagnostic ports, ensuring that the entire listed fleet receives the additional layer of electronic protection.

Component Replacement Protocol

In cases where the software update detects a prior and irreversible compromise of the cells, the automaker will activate a structured mechanical contingency plan. The official guideline determines the complete exchange of the energy storage package without any financial burden for the consumer, fully covering the costs of parts and specialized labor.

The replacement process requires specific lifting equipment and electrical isolation protocols, given the complexity and weight of the hybrid system’s central component. Authorized network workshops were instructed to prioritize the care of these critical cases, reorganizing service schedules to avoid prolonged unavailability of the asset and guarantee the mobility of affected customers.

The distribution logistics of the new batteries have already begun in the main urban centers of Chinese territory, aiming to meet the demand generated by the security campaign in a timely manner. The supply of spare parts follows a strict flow established in conjunction with local regulatory authorities, ensuring traceability of all modules installed during the repair process.

Consumers who had already incurred repair costs related to this specific defect prior to the official announcement will be entitled to an administrative refund process. Documentation supporting the service, including invoices and detailed service orders, must be presented to the customer service channels for due analysis and subsequent refund of the amounts paid.

Safety guidelines for drivers

Until the technical verification is completely completed on each unit, the manufacturer has issued a strict behavioral alert to all drivers of models manufactured during the period under suspicion. The main recommendation is to avoid sudden accelerations and maintaining high speeds on long stretches of road, practices that quickly raise the internal temperature of the electrical system. Moderate and predictive driving significantly reduces the likelihood of failure mode triggering, ensuring a greater safety margin during daily city commutes and minimizing stress on high-voltage components still awaiting official inspection.

If the instrument panel displays red warning lights related to the traction system or error messages on the on-board computer, the driver must immediately initiate a stopping maneuver on the shoulder of the road or in a safe place. The protocol guides the complete shutdown of the ignition, the evacuation of occupants and the immediate activation of the towing service provided by the brand’s uninterrupted assistance. Attempting to restart the vehicle, ignore the audible warnings or continue traveling under these conditions severely increases the risk of short circuits and thermal incidents in the lower chassis structure, putting the physical integrity of passengers and third parties on the road at risk.

The automaker’s position in the automotive scenario

The model involved in this safety campaign represents a fundamental portion of the brand’s sales volume, consolidating itself as one of the most popular and profitable hybrid sedans in the Asian market due to its high energy efficiency and accessible technological package. The company’s quick response in coordinating a recall of continental proportions demonstrates strict alignment with consumer protection standards implemented by government agencies, which require total transparency in detecting systemic failures. The electrified vehicle industry operates under constant regulatory scrutiny regarding the durability and safety of its energy storage components, requiring manufacturers to maintain engineering departments focused exclusively on the continuous analysis of fleet telemetry data. Proactive reporting of anomalies has become a determining factor in maintaining the confidence of the purchasing public, especially in a highly competitive segment where new electrical architectures are introduced in increasingly shorter development cycles. The efficient and documented resolution of this event is treated as a top priority by the executive board, aiming to preserve the brand’s reputation and ensure customer loyalty in its main commercial hub on the continent.

Established communication channels

Owners can check the exact status of their vehicles by entering the chassis identification number directly on the manufacturer’s official web portal or via the dedicated customer mobile app. An exclusive telephone center and instant messaging channels were structured with technical support teams to clarify operational doubts and assist in the priority scheduling of services at the dealerships closest to each registered user’s home.