If your 2008 Nissan Titan won't start after a dead battery and jump-starting, it could be due to several issues. The battery may not be holding a charge properly, or there could be a problem with the alternator not recharging it. Additionally, check for blown fuses, especially for the ignition system, or issues with the starter motor that could prevent the engine from cranking. Lastly, ensure that the jump-start was performed correctly, as improper connections can sometimes cause electrical issues.
Start the thing...............
You need a new battery.
If the car won't start it is usually the battery, starter or could be the altenator. What are the symptoms when you try to start it, is there any power?
Are your battery cable connections clean and tight ?
Failed battery.
Dead battery and/or alternator.
The battery is dieing down and you should go and get a new battery or get your battery charged
starter, solonoid, ignition, battery. if it clicks when you turn the key then the battery is really dead or its the starter the battery could still be jumped if its the battery.
Test battery with a load tester. If battery passes you have a problem with connections or cables.
dead battery
Get a new battery, Auto parts stores sell them.
go to Nissan dealer and buy new remote and have programmed