LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2018 >> C-Max Hybrid SE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Passive Anti-Theft System (Pats) - Vehicles With: Push Button Start >> Description And Operation >> Passive Anti-Theft System (PATS) - System Operation and Component Description >> System Operation >> Key Not Detected Message
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Key Not Detected Message

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS concern if the passive key is within close proximity of the charger. If a concern is observed, move the passive key away from the charger and attempt to turn the ignition on.

The Key not detected message displays in the message center when the ignition is off, the start/stop button is pressed and a programmed passive key is not detected inside the vehicle.

If a component failure is causing the Key not detected message to display, the backup starting method can be used.