Four problems related to horn assembly have been reported for the 2012 Ford Edge. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Ford Edge based on all problems reported for the 2012 Edge.
When you start your car. A message comes on that doors are not closed. It happens randomly every time you drive the car. You can open and shut your doors. All the time. The car also randomly honks the horn and the lights all flash. We have changed the batteries in the remotes and it still happens. This has been going on for while.
Vehicle is stationary. Dash warning "driver's door is ajar". Door is closed, but computer indicates the door is not closed. When this occurs, a warning light appears on the dash indicating "door is ajar". If I drive with that light on, another warning is displayed to "shift to park". When warning is on, the dome lights stay on. If I attempt to lock the car with the remote, the horn beeps twice (as opposed to once), indicating the doors are not locked.
Door ajar sensor failure: 2012 Ford Edge left rear passenger "door ajar" sensor fails to indicate when door is shut/locked indicating it may still be open/unlocked. The sensor failure affects the following: - alarm/intrusion detection: security system does not set properly and will activate randomly if set. Attempting to set alarm results in three abnormal horn blasts indicating a door is ajar. In this state, alarm will sound randomly which is highly disruptive to neighbors. It is unsure whether this model can lock without security system enabled, forcing the vehicle to be left unlocked. - electric / battery: dome lights, and other dash indicators do not secure manually and cause severe battery drainage. Expensive battery replacements. - safety: small children in car seats, unsure if doors are properly secured, doubt and peace of mind in Ford. The issue was discovered approximately August 2016. Vehicle was parked. At first the door could be opened and re-shut with force and sensor would self correct, but ultimately it would fail altogether. This is a known issue. Ford, where is the recall!?.
Driver side door ajar warning light and message displayed after entering or exiting the vehicle even though the door is shut. Problem occurs intermittently, seemingly more often when outside temperatures reach above 70 degrees. Attempts to open and shut the door multiple times often does not resolve the issue. When issue occurs the doors do not lock automatically when the vehicle begins moving, interior lights remain on. Occurs when starting to drive the vehicle or when parking. If parking, when the key fob "lock" button is pushed the horn honks twice rather than the normal single honk, indicating that the security alarm is not activated. Problem occurred within the first 10k miles and was fixed by Ford dealership under warranty. Problem started to occur again around 35k miles (Jan 2016).