I have a 2013 Chevy Cruze , My car will not start several alerts flast : stallibility trak , battey and antitheft .

 

I have a 2013 Chevy Cruze , My car will not start several alerts flast : stallibility trak , battey and antitheft. It just depends on how my car is feeling each day.....someday it will crank right up and somedays it throws these alerts. At times it wont even let me unlock my doors or open my trunk and if I use the actual key to unlock it the alarm will go off. I have had the battery tested and and put my car on the machine and everything checks out. Any of you Chevy masterminds know how to help me?? I would really appreciate it! thanks!❤