While driving in Dallas the engine seemed to have problems. We ended up pulling over and having the vehicle towed to a Hyundai dealer in Arlington TX where we live because we were concerned the vehicle was unsafe to drive and could stall out on a freeway. The dealer informed us they needed to replace the fuel injectors at a cost of approximately $1800. The vehicle has approx 60,000 miles and we also purchased an extended warranty. Apparently no warranties cover this issue according to the dealer. It seems Hyundai should take some responsibility for this defect which could be potentially dangerous when driving the vehicle with these known issues.