This content was compiled automatically and has not yet been reviewed by a technician. For reference only.
For reference only. Always confirm part numbers and procedures for your specific vehicle.
Restraints and airbags
BYD DOLPHIN SRS warning: why the under-seat harness and retaining clips need checking together
Japan’s DOLPHIN Gai-3927 recall concerns pretensioner wiring and retaining clips under the front seats. Check scope before ordering an SRS module.
If a DOLPHIN shows an SRS warning and the repair order already specifies an airbag module, first check whether the under-seat harness recall applies. The Japanese action concerns pretensioner wiring and retaining clips. A warning name alone cannot select the assembly.
Recall market and chassis ranges
The market is Japan only. Gai-3927 (Japan MLIT foreign-vehicle recall no. Gai-3927) was filed on May 12, 2025, and started on May 13. The original filing does not separately list production model years; no public model-year data was available. [To be verified] The dates below are import periods, not production dates.[Original filing][S05]
| Japanese type | Chassis range as listed in the notice | Import period | Quantity covered |
| --- | --- | --- | --- |
| ZAA-ME2EXSF | LC0CE4CC0P0****** to LC0CE4CC2R6****** | 2023-08-24 to 2024-04-14 | 400 vehicles |
| ZAA-ME2EXSQ | LC0CE4CB0P0****** to LC0CE4CB6P6****** | 2023-08-24 to 2024-01-13 | 313 vehicles |
The total is 713 vehicles. These ranges follow the original Japanese filing and do not define coverage for same-named vehicles in other markets.
Retention affects connection condition
The action concerns lap-belt pretensioner wiring beneath the front seats. Unsuitable retaining clips may allow driving vibration to cause wear and poor contact at the connection, triggering a warning. In severe cases, pretensioning may not work correctly during a collision.[Defect location description][S06]
Clearing the warning does not correct the harness retention. If diagnosis focuses only on module fault codes, also establish whether the vehicle is included in this action and whether the relevant harness and clips have been addressed as required.
Treat harness and clip replacement as one measure
The official measure replaces the relevant wiring harness and fits conforming retaining clips.[Corrective measure][S05] For an affected vehicle, buying a visually similar connector alone does not establish completion. Conversely, the notice does not require replacing all occupant restraint components.
Have the workshop confirm the fault and work scope before requesting parts. An owner facing an SRS warning should contact a Japanese BYD authorised dealer and must not independently disconnect, bridge or measure pretensioner circuits.
Verification and parts enquiries
Have BYD in Japan confirm actual applicability and recall completion by chassis number. No public data was available for specific OE numbers or permission for separate connector repairs. [To be verified] Verify parts compatibility or interchangeability using the VIN and local manufacturer parts catalogue. This article does not extend to other markets.
For ordinary wiring harness requirements, use the parts enquiry page. Recall work remains with official channels.
[S05]: https://www.mlit.go.jp/report/press/content/001887647.pdf
[S06]: https://www.mlit.go.jp/report/press/content/001887648.pdf
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