Okay some basic help for you, the gear icon with exclamation point is for your transmission. ( A scan tool is required to pull a code for this )
The not starting issue can be broken down
Park/neutral safety switch
1st. Quickest test located the starter relay and while someone turns the key to try and start listen for an audible click( should be able to feel it too )
2nd. Locate the starter, make sure there are no lose connections follow the main leads from the starter positive and ground and make sure they are tight on both ends. If they are give it a few taps with the end of a screw driver on the side and try again.
3rd. Key - if you have more than one try a different one, if memory serves me it should be a chipped one, ( or even just flip the key over and try that) sometimes they do go bad.
Wednesday, September 11th, 2019 AT 3:05 AM