So this is how yesterday went. This is long so bear with me. My wife took the '10 Traverse LT in to the dealer for the free oil change we get since we bought it from this dealer. All said and done and my wife drives about 24 miles back to work (had it done around lunch time) End of day, she drives home another 8 miles in Phoenix rush hour traffic, walks in and tells me the check engine light is on and it sounds "funny". She didn't notice the light until closer to the house. I start it and a very noticeable tick is a new sound so I shut it down right away and pop the hood. Pull dipstick and wipe it, re-insert and wait a few seconds and check again, NOTHING ON IT!! I wait a couple minutes and check again, NOTHING. I check oil filter, it's tight, drain plug is tight so it just wasn't filled with oil. I do see some oil on the undercarriage but not a crankcase full. Just drippage from the crappy design where the oil drains down. I call the dealer pretty pissed and end up talking to guy in charge. I tell them I want a flatbed to come and get it. They give me the 24 hr Chevy road service # but they will only take it to nearest dealer and I would have to pay $60.00 difference. I say no thanks and call dealer back and get # for tow company they deal with directly and get them to come get it. So this morning dealer calls and says all is ok and that they gave another oil change and checked it all out. It was 2 to 2 1/2 quarts low thats why it didn't seize within blocks of the dealer. I tell him I am very concerned about long term damage that was caused but he says it has a safety in which it will not run if there is not enough oil or oil pressure to prevent catastrophic failure. With all the new technology, I don't know what to think. We pick it up, (all detailed for our trouble), sounds good, no more tick. They used synthetic Mobil 1. I double checked the dipstick for oil to ease my mind. I made sure they put their mistake on the write up. Do you all think it will be ok?