Two problems related to turn signal have been reported for the 2009 Ford Edge. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Ford Edge based on all problems reported for the 2009 Edge.
Brake and turn signal light socket is burnt and charred. I have had to replace the bulbs at least every other month. I was told by Ford that I must have used the wrong wattage bulb. Internet searches suggest otherwise. There are countless other complaints regarding the extremely hazardous and dangerous issue. Ford will not acknowledge that there is an issue or offer to pay the $100 to fix the problem.
Brake light bulbs burning out resulting in a loss of turn signals and brake lights . The connector is discolored due to high heat (current). Company is covering under warranty but has not issued a technical bulletin.