One problem related to warning light on has been reported for the 2015 Ford Fusion. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Ford Fusion based on all problems reported for the 2015 Fusion.
Vehicle displayed airbag warning light. After Ford inspected the vehicle they stated that the defect was in the driver's seat belt buckle and that it would need to be replaced at a cost of $400. Ford stated that the defect would not allow the air bags to deploy. I asked for my vehicle back but had to pay $89 for diagnostics. Took vehicle home and removed driver belt buckle and discovered wire broken at base of buckle (see attached images). This defect that will not allow airbags to deploy and involves a broken wire in the belt buckle should be a safety recall. Otherwise, what will happen is all the vehicles that have broken wires will not get fixed and the only defense is the seat beat alone.