One problem related to service engine light on has been reported for the 2006 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Hyundai Sonata based on all problems reported for the 2006 Sonata.
I only put 2 items but I have other campaigns in with same care but im driving the car and I loose power in car to everything like it was shut off at key then goes back on does it like 2 or 3 times a week I almost hit another car due to no power to brakes then car just goes right back on without touching anything other problems never heard back is the issue with a known problem with the gas tank leak due to the metal on top rusting and cracks plastic tank cause service engine light to stay on then the front suspension clunking since I bought it 2 yrs ago but dealership cant find nothing its the upper control arm my airbag light in driver cluster was on when I bought it dealer said they fixed it same day I bought it went for state inspect wouldn't pass the fuse was pulled so light stays off this car is a lemon they should repair or buy it back I put more in car in 2 years than what I paid for it so far and still needs more work.