NBPacuraTL

iTrader: (1)

On my mom's MDX, I was driving and when I go over certain humps in the road, lets say, railroad tracks. If I go over it a certain speed and comes back down, VSA would kick in and I can feel/hear grinding noise through the gas pedal. This would last maybe a second or two. The wheel isn't slipping, I know because it's not reducing power to any of the wheels, but then again, I'm not accelerating when I go down the incline, just coasting down. Any inputs?

Mind you - I wasn't going over an inclined railroad crossing going 65+ mph like dukes of hazards or something.

vtec260

If I go over crappy rough railroad tracks, my 03 TL-S's VSA light would come on momentarily and turn off. No grinding noise since it's on and off for a second or so. I haven't noticed it with my 09 MDX, possibly due to better/newer suspension.

ccat78c

I have recently noticed that the VSA activates everytime I go over certain bumps. It is annoying as the throttle doesn't respond for 2 - 3 full seconds. I'm stuck coasting until the VSA is thru. Dealer says this is normal, his MDX has done this since it was new. My 2008 certainly hasn't, until recently. Anyone else?

akord 97

Have you tried to turn VSA off and see if there is a difference?

FiftyFive

Losing throttle response for a full 2-3 seconds does not sound normal at all. Maybe get it checked at another dealer for a second opinion?

RACINGHART03

iTrader: (2)

The change in wheel speeds as the suspension bounces around can cause the issue you are having. Normal IMO.