Battery terminal issues

Just changing the terminal ends would not cause this type of issue so we need to start with the security system. It looks like your vehicle is equipped with the standard system so if the indicator is remaining on then we most likely have an issue with the disarm switch. So we need to check for voltage coming out of the disarm switch to make sure it is closing. If not we will need to see if the light is flashing when trying to start and count the flashes.

Let me know if this is the case and we can go from there. If the security light is off, can you get a video of what it is doing when you try to start it so we can determine next steps? Thanks