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GM Asia Pacific Regional Headquarters Co., Ltd. CT6 — recall

Automotive · South Korea · 2025-08-29

GM CT6 automatic transmission hydraulic control unit wear may cause pressure drop.

Country	South Korea
Category	Automotive
Published	2025-08-29
Manufacturer	GM Asia Pacific Regional Headquarters Co., Ltd.
Models affected	CT6
Units affected	1052
Defect	Recall due to the confirmed possibility that if the automatic transmission hydraulic control unit body wears over time, a pressure drop due to oil leakage could cause certain valves to malfunction unintentionally, which in turn could lead to shift shock during driving and, rarely, momentary wheel lock-up, thereby increasing the risk of vehicle collision and compromising safety.
Component	Automatic Transmission
Remedy	- Update diagnostic software for the automatic transmission control module - Replace the automatic transmission hydraulic control unit if the corresponding engine warning light is observed after the diagnostic software update * The diagnostic software update for the automatic transmission control module will, if an anomaly is detected, limit the vehicle to a specific gear to prevent the possibility of wheel lock-up, and simultaneously display an engine warning light and message. * Additionally, the warranty period for the automatic transmission hydraulic control unit will be extended to 180 m…
Recall number	K5827
Official notice	View source ↗

What this means for sellers

Likely platform / channel actions	OEMs/dealers will run the remedy (repair, replace or refund); component suppliers in the chain may face traceback.
Self-check for comparable products	Check your comparable products' design, materials and QC records against the defect described here.
Rules & standards likely involved	the destination market's product-safety rules and mandatory standards

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