This sounds like you have a problem with your neutral safety switch. This is the switch that will only allow your vehicle to start in neutral or park. In the diagrams down below I have included diagrams, diagnostic testing, and step by step instructions for the removal and installation for the neutral safety switch for you vehicle. Please go through the guide and get back to us with what you are able to find out.
Images (Click to enlarge)
Thursday, July 4th, 2019 AT 8:29 PM