i have a 2012 rt challenger 6 speed, properly maintained, no mods, 19k miles. past two days i have had weird starting issues. i'm using the push button. first time, car had hard time starting, tried it again it started no problems. yesterday, started several times without issues throughout the day and then later i started it, it ran for a second and then shut off. no message lights. started it again and it was fine and was fine ever since - posted on another site and thoughts were issues with pcm, maybe remotes in battery. thoughts?