Purchased a 2015 High Country in July, When I get to 40MPH the passenger seat starts to vibrate, the faster I go the harder it vibrates. Service Dept at the dealership says the tires are the problem,they had the truck a week putting numerous sets on and still not resolving the issue. I'm being told by a co-worker he thinks its a axle or drive shaft issue.
Any Advice PLEASE
Jamie
Any Advice PLEASE
Jamie