i have a 2010 coupe lt, i am not sure if this is a problem or if it is just the balt. but when i warm up my car in the morning it will only heat up to 144 degrees and when i am driving it goes to 180-190. And the heat isn't warm until like 160 or 170. then if i park and leave it idleing because i am sitting in it the temp drops back to 144 and the heat gets cold again. also my car takes like 10 or 15 min of driving to warm up. i was hoping to find out if this is just the balt or if there is something wrong.