Vibration Econ mode

[roikenne]

I have notice on my 2019 Bighorn 5.7 hemi that when traveling and going down hill in Econ mode, I get a vibration almost sounds like hitting the lane groves in the road. Not in steering or tire balance but seems like always when in econ mode and going down hill, Highway or back roads.

My 7 year warranty expires in a few weeks and wondering if normal or go to dealer

2019 Big Horn, 5.7 Hemi
68,000 miles

 

[1791]

it's the MDS. google it

 

[stevj]

This can also happen if you're in 4WD Auto.
If you have 4WD Auto turned on, set it to 2WD and test it again.

Steve

 

[Ready Go]

Try driving in Tow/Haul mode (turns off MDS) and see if it goes away.

 

[vincentw56]

Eco mode is when it shuts 4 cylinders down in MDS mode. There are vibration motors on the frame to counter this. I forget what they are called, but maybe they stopped working.