Three problems related to brake fluid leak have 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.
Noticed a fluid leaking in the drive way. Upon investigation, it was brake fluid and the lines rusted through. Thank jesus my wife wasn't driving the car. The kicker is no brake warning light was displayed on the dash.
The contact owns a 2006 Hyundai Sonata. While the vehicle was parked, the brake pedal traveled to the floorboard and brake fluid leaked from the vehicle. The vehicle was taken to the dealer where it was diagnosed that the brake line and evaporator line were rusted and corroded due to salt and needed to be replaced. The vehicle was repaired. The manufacturer was notified. The failure mileage was unknown.
After exiting a restaurant parking lot I attained a speed of about 35mph when a traffic lite about 100yds ahead turned to red. I took my foot off the accelerator and after a few yards applied the brakes only to find the pedal going down to the floor with little or no braking action. I grabbed and the pulled the hand brake as hard as reasonable without breaking the handle or doing other damage to the emergency braking system. Although I stopped about 2-3 car lengths short of an accident I'm sure that use of the hand brake prevented a rear end collision. Only after I had driven a few hundred yards to get off the roadway did the red brake failure lite come on confirming that I had survived a sudden brake failure as opposed to a slow leak failure. With a rather shaky hand, I grabbed a flash light and while my passenger pumped the brake pedal I found that the brake fluid was leaking from a location about 16 inches in front of the left rear tire. The car is in the yard now but w/o a lift the location of the failure is unknown. Hundai did not seemed too concerned about the near accident stating there are no known brake issues but did give me a case number for reference, that number is 6046357. Since hundai did not seem too concerned about near accident so I will be taking the Sonata to a local dealer.