Automatic Transmission Control Module problems of the 2009 Dodge Challenger

Faulty tcm after purchasing my car it would hard shift in the 3rd and 4th gear and I realize that shortly after purchasing it chant and then one night I was on the freeway and between 2 semi trucks when it's just neutral and then tried shifting into 2nd gear which almost caused me to wreck in between 2 semi trucks which was not cool and now my car only shifts into 1st and 2nd gear and when it gets to 3rd it neutrals , it won't go into 3rd or 4th gear . I took it into the dealership to get new software uploaded on my tcm they said it was fine so I drove it out the parking lot and still doing the sa. E thing won't shift into 3rd gear so I took it to another shop to have it looked at because I didn't want to risk my life driving the car. I'm not gonna take it back to a place that just gotten to tell me that everything was fine when it's clearly not so we put it on a lift inspected it and it shifts from 1st all the way up to 4th no problem and then soon as you put it on the ground and start driving it ,it does the same thing neutrals when it gets the 3rd . Then after looking further into the car the mechanic noticed how small the groundwire was compared to the power wthe power wire and it wasn't getting enough voltage so I'm thinking that also could be a major issue later on down the road and that might even be the cause of the tcm going bad . It's just crazy to me a car would be okay to be sold with the problems it has and there's a lot of people online with the same kinda of problems as mine all I have to say is I'm lucky that I'm alive due to these problems.

Overview: my 2009 Dodge Challenger r/t, with the 5. 7l hemi engine and manual 6-speed transmission, has an excessive delay between pressing the throttle and achieving engine response. This occurs only in gears 4-6, and is the result of a powertrain control module (pcm) update. Background: this vehicle has an electronic throttle ("drive by wire") system, where throttle response is controlled by the pcm and not via a throttle cable. History: on October 14, 2011, I brought my vehicle to my local Dodge/Chrysler dealership due to a rough engine idle. They informed me that a pcm update was available, based on technical service bulletin (TSB) 18-014-10. This update changed the engine calibration id from 05187899ae to 05187899ag. Ever since this update was performed, the vehicle has a significant (and unsafe) throttle delay while in gears 4-6. Basically, when the throttle is depressed, it takes about 2 seconds for the engine to respond. This has resulted in several near-collisions, during times where acceleration is expected to avoid an unsafe road condition but the vehicle fails to respond in a timely manner. To demonstrate the problem, you could actually rapidly pulse the throttle repeatedly without having any engine response at all. This issue affects all owners of 2009-2010 Dodge Challenger r/ts with the 05187899ag calibration id. As of this date, no pcm update has been released to correct this unsafe condition.