ratman69

This is my first response to this issue as I have had nothing constructive to add until now. Have read every page so far. My 2015 Sierra 1500 SLT 4x4 crew which I bought new Jan. 2015 had no issues when I bought it. Intermittent vibration started after 600 miles. Not bad just annoying. Took it to dealer they found nothing. Drove another 1000 miles or so got worse. Took it back they had it for 3 weeks. Checked every thing again used pico monitor. After 3 weeks all they did was put on one tire. Must admit it was better but it was still intermittent and annoying. Service manager said everything was within GM specs. I don't use it that much except for mostly local running so I put up with it. It was worse at speeds over 65. Fast forward to today was in my local Costco and was talking to tire shop manager. Told him the story. He suggested letting them check balance as they have the latest equipment that mounts wheel on balancer using lug holes instead of wheel center. Balance was off so they corrected it and so far it is night and day better. Just my 2 cents. So far so good.