I had a 2011 Aveo with 38K and had the plugs changed at dealers about 20 thousand miles ago under this recall. I got a blinking check engine light and bad engine vibrations this weekend, had it towed to the dealer and diagnosed as bad plugs and coil ($400 to fix). I asked if the recall plugs were warrantied and told no. Does anyone know otherwise and if that should have been covered?> Thanks, Dave