Home >> VinFast >> 2023 >> VF9 Plus >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Vehicle Control Diagnosis (10 Of 10) >> DTC U1255-98: Invalid Data Received From Active Grill Shutter "A" Control Module - Component Or System Over Temperature >> VinFast DTC Guided Repair Instruction >> Failure Actions