One problem related to warning light on has been reported for the 2010 Ford Fusion Hybrid. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Ford Fusion Hybrid based on all problems reported for the 2010 Fusion Hybrid.
Airbag disabled warning light appeared on dash. Took it to dealer and after 2 days, it was decided that the computer controlling the airbags had to be replaced. For the next 4 years this same light has come on indicating the airbags are not operating. Each time the same dealer has said the problem was "in the wiring harness under the passenger seat". It works for a time and then with no warning fails again. On one occasion it occurred just when leaving on a 2500 mile trip so we were without airbag protection. I am convinced that it has to do with having a passenger in the right rear seat and that feet under the seat interfere with the wiring. The dealer has never resolved it. Multiple times it has resolved itself before I can get in for service so I am brushed off by the dealer. I consider driving this car without working airbags a great life threatening hazard. I was the passenger in a vehicle with airbag deployment once and am convinced my life was saved by them.