Ford C-Max electrical failure on shutdown with automatic A/C activation after reset on Ford C-Max

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Ford C-Max owners report experiencing electrical system issues, including starting difficulties and warning indicators such as a red triangle signaling an electrical isolation fault. These problems can arise particularly after the vehicle has been shut down, especially when automatic A/C activation is involved. Owners have noted that these electrical issues can compromise the vehicle's safety and reliability, making prompt resolution essential. It is recommended that those facing electrical failures consult a qualified mechanic or authorized Ford service center for effective diagnosis and repair. Regular maintenance and timely repairs are crucial in preventing further electrical system failures in the Ford C-Max.

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