Have the front suspension checked for wear on bushings and ball joints by someone who is well-versed in MacPherson strut suspension issues.I'm having a similar issue on my 2015 Acadia. New tires in Oct. New front and rear shocks in Dec. Noticed the steering wheel shaking/vibrating about a month ago. Took it in to get the tires balanced and rotated. They said 3 of the tires were out of balance. That fixed the steering wheel vibration/ However.......now I'm feeling the front end shake/vibrate at highway speeds. It's interesting because it's not a constant shake. it will be fine for a few minutes and then shake for a minute and then go away. This repeats as long as you are at highway speeds. So, I'm curious what that could be? Any thoughts/advice would be greatly appreciated. Thanks,
I'm having the same issue and I replaced the CV shaft and rotated the tire with no luck. I have a hub assembly on order. Just curious what resolved your issue. ThanksJust got a 2012 Acadia
127,000 miles on it. New tires. Has vibrationover 55 mph. And yes I hear the hum.
Good to know !I had the same issue with my 2016 Denali. Road Force balance made it much better, but I think the Bridgestone tires are part of the problem. They seem very hard. My 2018 Denali has Michelin tires on it and it does not have this issue. The 2016 and 2018 chassis are different though.