NHTSA Complaint #11484805 — 2018 HONDA ACCORD

2018 Accord Sport 1.5T - got a tune-up at around 98,000 miles. 1 month later, car went into 'limp' mode while trying to accelerate. Check engine code indicated misfire on cylinder 3. Had to have it towed - dealer found it also misfiring on cylinder 4 and determined it was a defective spark plug since they had just replaced all of them. 1 month later, did the same thing. Took it to a different dealer and they put a camera into each cylinder and found that cylinder 3 and to a lesser extent cylinder 4 were dirty. They are saying that head gasket is leaking coolant into the cylinders and recommending cylinder head replacement. This poses a safety issue as it is dangerous if the car won't accelerate when you expect that it should. Standard internet search indicates that this seems to be a fairly common issue with this particular engine (1.5T).