I also bought a brand new 2010 Equinox. Had to change the high pressure fuel pump, adjust the programming for the oil change indicator and after 5 years and no warranty at 52k miles the car started stalling with rough idling.
It had a code P0605 which indicates air intake problems. On the way to work it stalled again and heard a " pop" noise. I was close to work so I called a tow truck and took the car to my mechanic. The car was completely out of oil.
I told him that it was not possible since I just had an oil change and I did not have any indication from the car that it was low on oil. He lifted the car and found a massive oil leak from the main seal. After some research he found a bulletin PIP5093 and a repair method for the oil leak. It was caused by frozen PCV system and excessive crankcase pressure.
The repair is about $1,200.
This car is a piece of ....... I will never buy GM car again!!
Reason of review: Bad quality.