Seat slight move back and forth when I step on brake to slow down from high speed. It little bit getting annoying. I know this is common issue for G. But anyone know how to make this getting better, make the seat stable???

my seat doesn't move... I have never hear of this being common with a G, but who knows.

my friend has the same thing happen with his seat too. It not move too much but slightly mine is 2003...

I had an 03 and now an 04. no issues with either. Have you checked the bolts holding the seat to the car? Might try taking a seat out and make sure something is not loose on hte bottom side of the seat.

That's something you need to fix, I've owned a lot of rides and never had a seat move when braking. It's either loose or the seat track is worn out. What do you tell yourself when braking, "Hang On?"
Gary

happens to mine too.
Checked all the bolts holding the seat to the frame, theyre fine.
Checked all the bolts holding the frame to the car, theyre fine.
It must be some internal bolt that will require removing the seat and possibly dismantling a bit to get to. Hoping to have a place in the near future where I can actually remove the seat and dig around. Would be great if someone else already figured it out though :\

mine does this sometimes too. mine does it on take off and when stopping at random *** times, its just very slightly but still annoying

it's either the seat track or the seat lifters. i've had mine replaced THREE times under warranty. they just don't seem to fix it correctly and it's about to go out AGAIN. i have an 04' sedan.

Sound like some car does and some car doesnt. Lucky for who have stable seat...