Car uses fob key and in the morning times it won't start reasons why?

The most common reason for a seemingly-faulty "Key Not in Range" error is that the battery in your key fob is low or dead. If the battery is just low, you can often still use the fob by pressing it against your Volkswagen push-button start button. Let me know if this helps and if it worked

The general consensus here is that the battery in the fob needs changing.

https://www.google.com/search?q=2010+Dodge+Charger+car+won%27t+start+using+key+fob&

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Change. The battery and see if it works. You use the remote all the time it will drain the battery faster

security lockout

Check your Owners Kit for a Owners ID Card is about all I can add. The Security system is suppose to read your chip in the FOB. All I can think of is to have the Keyless Entry Card in hand(inside Kit) while you touch the Start button.
Disconnecting the car battery will reset the Security or do any good, because your car wants a Signal from something. I am guessing Ford would have to give you something to substitute for a dead FOB.
If not, shame on Ford. They finally created a problem by getting too fancy and forgetting basic accessibility. You might try leaving the Key turned in the outside door and then pressing the Start button or entering the Keyless Code. Just don't forget to pull the keys out of the door if the engine starts.

I think you might even have your car battery checked as it is the heart of all activity. Batteries can build up overnight and react differently in heat.

Along that line is the transmitter for your key-less, the mate to your FOB which needs and uses radio signals to operate. The heat may have gotten to the part inside your car. Heat messes with electric components and may drop the strength of the signal. This is what it sounds like happens if the FOB needs to be over the hood of your car to operate. The car part of the system does not have a strong enough signal to respond to the FOB. Could be a gap in the antenna in the responder.

Try not using the fob at all open the door with the key. And start the jeep if it works without issue then its the fob. If its still not working correctly remove the battery from the fob and try again(since if it was damaged could be sending the signal for the panic button) the next step is the key try your spare security key can become worn and cause issues with the antitheft system. After that it only leaves computer problems and those can get spendy

The 'Keyless Entry & Burglar Alarm System" is activated. You must 'Disarm' the system using the Keyless Entry Remove (Key Fob) to "Reset" the system. The reason the engine won't start is due to the burglar alarm - it has a "Starter Kill" circuit which is activated when the alarm is activated. The alarm must be DEactivated to DEactivate the 'Starter Kill' circuit.
Another way to start the engine is to get in the car, put the key in the ignition and turn it to 'ON" and wait 3 to 5 minutes until the emergency flashers stop/turn off. Afterward, you should be able to start the engine. NOTE: This does NOT reset the burglar alarm. It will go off again when you enter the vehicle without using the remote/key fob.

You most likely have an aftermarket fob and remote start unit.What is the brand on the back of your key fob?You will have to get the proper reset and registration procedures for the particular unit installed in your car to make your key work normally.

check the baterries in the remote key