Rear end thud at 4K miles

[IS2000]

Recently I’ve been noticing faint thuds from the rear of my 2020 when creeping at parking lot speed. It happened every time when I gently touched the throttle and occasionally when I pressed the brake pedal. The sound is almost like when someone jabs the throttle pedal on a NA car with intake but this definitely came from the rear. It never happened when the car is stationary. Our local dealers won’t help much since we only got a handful of A90 Supras around.

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[IS2000]

I have recorded the videos for the noise. This only happens at stop and go traffic speed mostly when throttle is applied. Giving a little gas once the car is above 5mph didn’t produce this thud. It is definitely coming from the rear of the car and not from the interior trunk area.

 

[IS2000]

 

[YellowJacket]

If something isn't loose rolling around somewhere underneath the rear decking or something...this is definitely a dealer issue. Can't really diagnose from the keyboard...but yea that would have me digging for clues too.

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