2015 Lincoln MKZ Owner Manual Printing 1 - Page 212

Cruise Control System Not Available Conditions that can cause the system to deactivate or prevent the system from activating when requested include: • A blocked sensor. • High brake temperature. • A failure in the system or a related system. Blocked Sensor WARNINGS Do not use the system when towing a trailer with brake controls. Aftermarket trailer brakes do not function properly when you switch the system on because the brakes are electronically controlled. Failing to do so may result in loss of vehicle control, which could result in serious injury. The system does operate with non-electronic trailer brake controllers, such as over-run or surge brakes. Do not use tire sizes other than those recommended because this can affect the normal operation of the system. Failing to do so may result in a loss of vehicle control, which could result in serious injury. E145632 A message appears if something obstructs the sensor's radar signals. The sensor is located behind a cover near the driver side of the lower grille. The system cannot detect a vehicle ahead and does not function when something obstructs the radar signal. The following table lists possible causes and actions for this message displaying. 209 MKZ (), enUSA