I purchased my 2009 Enclave in 2012 and in the first year I owned it, I have had the following problems: 1. Timing Chain, 2. Water pump, 3. Front Struts, 4. Rack and Pinion, 5. Power Steering Pump, 6. Engine Mount, 7. Washer fluid pump and 8 Transmission.
And since the car never goes more than one week without a check engine light coming on (which disables the remote start), the remote start is not available most of the time.
Other than that, I love the car.