Carrier/rack problems of the 2013 Chevrolet Impala

I have a 2013 Chevrolet Impala--I have had multiple problems with; my dashboard lights up with service stablitrack, brake assist, traction control, and the abs light comes on while driving down the road. I have taken it to numerous places, that tested it, and was told no problem was found. It makes a grinding noise when in reverse; sometimes it doesn't want to accelerate, especially when it rains. Also my passenger seat's, buckle up alarm, goes off when no one is sitting there and the front window always seems dirty, even after it's cleaned-inside and out.

2013 chevy Impala ltz has to many issues with under dash door agigator censors 2times on this car and now abs and trackstablizer lights coming on and it makes a grinding noise when turning the wheel to the left was driving and the lights came and cant get them to go off even after resetting them.

I purchased a 2013 Impala in November with 19,000 miles on it. I noticed a bang in the front end when backing out of driveway cutting to the right or left. The drivers tire is wearing uneven because the alignment is off "but only slightly and within specs". Steering wheel shakes at 45-50 mph without pulling. Go over a bump and feel a vibration in the floor under my feet! it has been in several times and they have done the following: 1. Tighten motor mount 2. Had it half a day to replace a broken motor mount (same one they tightened two weeks earlier) 3. Had it all day to "listen for the noise", heard it and ordered a strut spacer 4. Had it half a day to replace strut spacer, did not stop the noise they have heard the noise 3 times and made several attempts to correct but was not successful. I suggested the rack and pinion but was told gm will not pay them to explore my front end. Shop says without hearing the noise all the time we will have to wait for a "catastrophic event to occur".