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Traction battery and high voltage

Qin PLUS DM-i battery recall: distinguish the OTA detection update from a workshop pack replacement

China’s Qin PLUS DM-i recall separates detection software from replacement after an abnormal battery alert. OTA completion does not mean a new pack.

By Funbyautoparts Editorial3 min read
Content type: Industry Knowledge

After an OTA update on a Qin PLUS DM-i, a later traction battery warning may prompt the question: “It was already updated, so why return to the workshop?” This Chinese recall separates detection software upgrades from battery pack replacement following an abnormal finding. The sequence explains what an update actually completes.

Stronger detection does not establish physical repair

The Nov 28, 2025 notice states that production consistency issues in some traction battery packs may restrict output power and, in extreme cases, prevent electric-only mode.[Defect description][S02]

The measure upgrades vehicle-side detection software. If a battery abnormality is detected, the instrument panel illuminates the traction battery fault lamp and prompts the user to return for battery pack replacement.[Rectification sequence][S02] The software therefore performs detection and notification. “OTA completed” cannot be restated as “software repaired the physical battery defect”.

An alert requires more than clearing codes or repeating an update

For this action, an abnormal alert from the detection logic should be followed by checking the manufacturer's workshop requirements. Clearing the lamp or performing another ordinary update cannot replace the specified abnormality checks and pack replacement arrangements.

Continued hybrid operation also does not establish that the traction battery is fault-free. Loss of electric-only mode is described as an extreme consequence, not a threshold owners must wait for before contacting the repairer.

Recall inclusion does not mean a battery pack is immediately shipped

The public measure links detected abnormalities with workshop pack replacement. It does not require immediate replacement of every pack in scope. Dealers should establish whether a vehicle is at the detection-update, abnormality-return or confirmed-replacement stage before creating a battery assembly order without diagnosis.

Record software work and physical replacement separately. If a later alert occurs, the record should identify what was previously completed rather than only stating “battery addressed”.

Scope and verification

This article covers only the Chinese notice. Retain both manufacturer groups, production periods and action numbers separately rather than merging them into a single VIN range:

| Action number | Manufacturer | Production period | Quantity |
| --- | --- | --- | --- |
| S2025M0189I | BYD Auto Industry Co., Ltd. | 2021-09-26—2023-09-23 | 52890 vehicles |
| S2025M0190I | BYD Auto Co., Ltd. | 2021-01-07—2022-09-30 | 36091 vehicles |

Both groups concern certain Qin PLUS DM-i vehicles. Production dates are not restated as model years, and coverage is not extended to other Qin series vehicles or markets. The cited official text lists neither VIN endpoints nor individual vehicles. No public data was available for the specific VIN scope; have the Chinese authorised representative check by chassis number. No public data was available for battery pack OE numbers, cross-version interchangeability or internal repair criteria. [To be verified] Verify ordinary compatibility using the VIN and local manufacturer parts catalogue.

For additional battery components confirmed necessary after inspection, use the parts enquiry page.

[S02]: https://www.samr.gov.cn/zw/zh/art/2025/art_94d5b59d5f4c4420baae386c463c9717.html

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