accelerator

Hello all, I own a 2018 Genesis G80 3.3T and I just hit the 50,000-mile mark. For the last 2000 or so miles in the low rev range between 15-25 miles an hour, I feel an "antilock break-like" pulse coming from the pedal. Once the speeds get up the pulse goes away like highway driving it does not...

Before you read everything below or close this tab because there is too much to read, my main question is "Did different years/trim have different accelerator pedals in the US?" The Metal Accelerator Pedal unit is much larger than the USDM assembly on my car. All information and pics below...

So you push the pedal down ~90%... and its smooth flowing…. Then comes this minor detent –or stop if you prefer, that if pressed further allows another amount of pedal travel. Anyone know what that’s about? Does it guarantee a downshift or something?