Owners/service Manual problems of the 2012 Buick Enclave

Rear lift gate will partially open then close again, when you attempt to manually open it will not hold in the open position. Lift gate will open all of the way then close electronically, the gate pinned my elderly mother. Lift gate will stop working all together.

On 9/28/2015 on the way to work, whenever you turn on to the road or just making a general turn there is a loss of power steering. There is power steering during straight driving and slight corrections; but , when you turn into an intersection or try to park, you have no power steering. I can handle the loss of power steering but if someone were elderly or not very strong, they would not be able to control the vehicle. This vehicle was just serviced. A complete front brake job, oil change, tire rotation and new rear shocks that the dealership said were leaking. I checked the power steering fluid according to the Buick owners manual and found that the fluid was within the recommended level. I am scheduling an appointment today to have this looked at. I wanted to inform the NHTSA as this is an extremely dangerous situation and just wanted to bring this to light for safety reasons. This has been a very reliable and safe vehicle but at this time it is extremely unsafe to drive. Thank you.