Rear exterior door handles both broke off.
CD player skips.
Computer needed to be replaced.
Warning lights come on sporadically, and some will not shut off, even though there is no problem.
LED light for clock has a short in it, turns on and off sporadically.
Catalytic converter went bad. This was a known problem and I was told by Chevrolet that the repair would be fully reimbursed. It was NOT.
Several trim items (ashtray, moulding, glove box, etc.) have come loose or have broken off.
Brakes needed to be replaced after only 20,000 miles due to cheap Chinese steel.
I love the ride and handling of this car. It is very comfortable, even on very long trips. The interior is very roomy, even for rear seat passengers. There is tons of space in the trunk.
However, it does not hold the road well in wet or snowy conditions. Even after meticulous maintenance, there have been many, many mechanical problems with this car. The cosmetic issues I have had are not due to any type of abuse or over-use.
My experience has been that this is a very poorly built automobile, and as a result has been unusually expensive to maintain. I would not consider purchasing one in the future.
With the amount of miles on your car, the vehicle's catalytic converter should have been replaced under the federal 8 year/80,000 mile emissions warranty. Unless you modified or damaged the vehicle, the manufacturer is then no longer liable for the failure of this component.