strange thud?

[sprayed]

hey all, i've owned a cpo 2021 low miles g70 3.3t awd with the sport prestige package since november of last year and has been a absolute blast as a daily driver. however i've started noticing a noise recently that can best be described as a muffled thud from the back of the car when accelerating when cruising off the gas at moderately low speeds, its audible and can be felt but very dull, took it to my local genesis dealership which has been very helpful previously and had the shop foreman ride along with me to try and hear it, and of course, he couldn't hear anything and said it's not a cause for concern or could be the suspension components re engaging with throttle input, i don't buy that however since it's getting more noticeable now that the weather is heating up and im worried its related to the drivetrain or transmission since its consistent with throttle input but only while the car is cruising in drive, no noises when turning or accelerating from a stop. if anyone has experienced this any feedback or input would be very helpful so i can narrow down stuff to inspect for damage since there is no lights on my dash.

 

[tooadvanced]

hey all, i've owned a cpo 2021 low miles g70 3.3t awd with the sport prestige package since november of last year and has been a absolute blast as a daily driver. however i've started noticing a noise recently that can best be described as a muffled thud from the back of the car when accelerating when cruising off the gas at moderately low speeds, its audible and can be felt but very dull, took it to my local genesis dealership which has been very helpful previously and had the shop foreman ride along with me to try and hear it, and of course, he couldn't hear anything and said it's not a cause for concern or could be the suspension components re engaging with throttle input, i don't buy that however since it's getting more noticeable now that the weather is heating up and im worried its related to the drivetrain or transmission since its consistent with throttle input but only while the car is cruising in drive, no noises when turning or accelerating from a stop. if anyone has experienced this any feedback or input would be very helpful so i can narrow down stuff to inspect for damage since there is no lights on my dash.

I just got mine 8/2025 3.3t G70 sport prestige. I believe the thud is when we are on eco mode cruising like you said. The car goes into coasting mode when u let off the throttle, and when you get back on throttle i goes from " N" i assume to " Drive, similar as if you were driving manual and went on "N" to save gas and keep rpms low and jumping into gear or " D". I believe thats y we get that thud or light engagement. I dont feel it in other modes where " coasting feature" is off.