| Symptom | Description | |---------|-------------| | | "Park Brake Limited Function" or "Check Park Brake" in instrument cluster. | | Amber/Red EPB Light | Flashing or steady yellow/red (not solid red when applied). | | No Auto-Apply | Parking brake does NOT engage when shifting to P or turning off ignition (even if enabled in settings). | | No Auto-Release | Must manually release EPB (no automatic release when shifting to D/R). | | Manual Apply Still Works | Usually still possible, but may be slower. | | No Emergency Braking | Pulling and holding switch while driving does nothing. | | Hill Start Assist Disabled | May be unavailable. |

The in the Ford C-Max is a safety and protection feature, not a failure of the parking brake itself. It typically arises from low voltage, overheating, or a loss of calibration data. While manual operation may remain, automatic and dynamic braking are disabled. Proper diagnosis with FORScan, attention to 12V battery health, and correct brake service procedures will restore full EPB functionality without requiring caliper replacement in most cases.

The rain was coming down in sheets as Elias pulled his Ford C-Max into the driveway. He shifted into Park and reached for the electronic parking brake (EPB) switch. Instead of the familiar mechanical whir, a sharp, insistent chime echoed through the cabin.

. While the parking brake may still engage and disengage manually, advanced features like "Auto-Hold" or automatic release may be disabled. Common Causes