Problems with 2019 Mazda Mazda3 POWER TRAIN

Car lulls/jerks when accelerating from low speeds car lacks power most of the time and performs poorly engine loses power, several occurrences of what would appear to be limp mode ( can't get passed 2000-3000 ) rpms car has erratic idle rpms, sometimes high and sometimes low i've recently heard the engine roar while idling and hissing from the engine bay when shutting off the engine also sounded like the car was dieseling after shut down likely because the car was beginning to overheat from the immense stress in the engine from running too lean car has poor sound absorption in the cabin, sounds like you're in a airplane every bump it goes over reverberates through the car for an extremely unpleasant and unsafe experience feels like there is excessive play in the front axle wheels seem to drag and thud/thump like there is a flat when there is not i've had my wheels aligned twice already, they've balanced my tires several times, even changed a wheel bearing (i am aware of the tsb released to address these concerns and you blame it on a bearing) nothing makes this better and it is getting worse my car has been to the dealership for this complaint 3 times already this year ( yes that is every week out of 2020 so far). this is becoming a complete burden in my life and i am not going to be the person who has to die for mazda to address this

A safety critical incident occurred on my new 2019 mazda 3 hatchback when the vehicle when into "limp" mode while adaptive cruise control was engaged at highway speeds leading to rapid deceleration. the vehicle was towed to the nearest manufacturer service location where a diagnostic was performed. codes show that communication between the central vehicle processor and multiple sub-processors failed simultaneously. comments were made by manufacturer service representatives that failure mode is likely different from the recent cylinder deactivation/rocker arm recall. service representatives were instructed to simply clear the codes and drive the vehicle to attempt to reproduce the failure during which it did not occur. i have attached a sanitized version of the service receipt to this message with the full list of codes. unfortunately mazda's representatives were unable to provide any explanation on why this failure occurred or what will be done to prevent it in the future. engineering analysis will need to be performed to reach an acceptable conclusion. environmental factors relating to the incident include a very hot outside air temperature, with a reading of 115 deg f from the vehicle's sensor roughly 15 minutes before the incident. the incident also occurred on a very long section of us highway with a consistent, gradual incline. given that information potential causes are intermittent computer hardware failure in high temperature environments, or a software error in power train control or cruise control causing a communication bus failure. with the age and mileage of the vehicle (336 mi) the potential for this failure occurring is likely present in a large portion of new mazda vehicles.

- rear view mirror fell off while on the freeway. hot days will break down the adhesive and cause the rear view mirror to fall off. - brakes vibrate harshly when in sport mode. faster the vehicle goes, the more harsh the brakes will vibrate. - acc