At times when the car starts with either the radio on or off there is no sound and it will not appear if the radio was off and then turned on or if the radio is turned off and on. It will often then appear the next time the car is used.
RepairPal Certified shops can diagnose and repair your 2012 Lincoln MKZ. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.