Suburban vibrates at highways speeds. Bought new tires and the problem still occurred. I went to several shops and spent hundreds of dollars trying to get it sorted out. Eventually the magnetic shocks were replaced at $$$ but it stilled happened. Then one of the new magnetic shocks started leaking and dealer would not honor replacement as they said we must have hit something to cause the leak.

Haha! I then took to another shop to convert it to regular shocks which helped the vibration somewhat but it still continues to this day. Terrible product and awful dealer support. Will never buy GMC products again.