Symptom Chart: Adaptive Cruise Control

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Condition	Possible Sources	Actions
A module does not communicate with the diagnostic scan tool	Fuse Wiring, terminals or connectors Communication concern Module	REFER to: Communications Network .
The ACC adaptive cruise control is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test A
The cruise control switch is inoperative/does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test A
The ACC does not function in rain or snow conditions	Refer to the Pinpoint Test	GO to Pinpoint Test E
ADAPTIVE CRUISE NOT AVAILABLE SENSOR BLOCKED SEE MANUAL message in the IPC message center	Refer to the Pinpoint Test	GO to Pinpoint Test E
The ACC indicator lamp is never/always on	Wiring, terminals and connectors PCM IPC	REFER to: Instrumentation, Message Center and Warning Chimes
Unexpected ACC braking	CCM Front bumper cover	The ACC system can occasionally detect and respond to out-of path vehicles, especially on curves, entry/exit ramps or when changing lanes. CHECK the CCM and front bumper cover for damage. RETEST the ACC system.
Late or lack of ACC braking	CCM Front bumper cover CCM bracket alignment concerns CCM alignment or attachment concerns	The ACC system may not detect and respond to vehicles carrying out close cut-ins or on tight curves (especially for vehicles on the passenger side) due to limited CCM field of view. CHECK the CCM and front bumper cover for damage. If no damage is observed, RETEST the ACC system. CHECK the radar attachments to the bracket for damage, loose grommets or attachments that have come free from the ball stud. This may cause the module to not point parallel to the ground. Incorrect alignment can cause delayed detection. If concerns are present, REPAIR attachments and CHECK for proper radar alignment. REFER to: Cruise Control Radar Alignment . If no damage is observed and bracket attachments are OK, RETEST the ACC system.
ACC does not slow the vehicle down until too close to a lead vehicle, does not detect a lead vehicle or vehicle follows closer than the set gap value	CCM Front bumper cover CCM bracket alignment concerns CCM alignment or attachment concerns	The ACC system may not detect and respond to vehicles carrying out close cut-ins or on tight curves (especially for vehicles on the passenger side) due to limited CCM field of view. CHECK the CCM and front bumper cover for damage. If no damage is observed, RETEST the ACC system. CHECK the radar attachments to the bracket for damage, loose grommets or attachments that have come free from the ball stud. This may cause the module to not point parallel to the ground. Incorrect alignment can cause delayed detection. If concerns are present, REPAIR attachments and CHECK for proper radar alignment. REFER to: Cruise Control Radar Alignment . If no damage is observed and bracket attachments are OK, RETEST the ACC system.
Collision warning alerts in high sensitivity setting occur on bridges	CCM bracket alignment concerns CCM alignment or attachment concerns	CHECK the radar attachments to the bracket for damage, loose grommets or attachments that have come free from the ball stud. This may cause the module to not point parallel to the ground. Incorrect alignment can cause delayed detection. If concerns are present, REPAIR attachments and CHECK for proper radar alignment. REFER to: Cruise Control Radar Alignment . If no damage is observed and bracket attachments are OK, RETEST the ACC system.
Noise during ACC braking	Low speeds Brake concern	The driver can detect some noise at low speeds when adaptive cruise control braking occurs. If braking noise continues, REFER to: Brake System .
The cruise control cannot set above 100 kmh (65 mph), 110 kmh (70 mph), 120 kmh (75 mph), or 130 kmh (80 mph)	A MyKey® restricted key is in use and MyKey® max speed limiter is turned on	VERIFY a MyKey® restricted key is in use. With an admin key, VERIFY if MyKey® max speed limiter is turned on. REFER to the Owner's Literature. If necessary, VERIFY cruise control normal operation with an admin key.