Alignment wont cause vibration issues.
The wheels need to be rebalanced. If the problem still persists you need to take it to a shop with a Road Force balancer. They are amazing and are FAR FAR FAR superior to the standard wheel balancer. Also, if the wheels use tape weights it could have lost one.
The wheels need to be rebalanced. If the problem still persists you need to take it to a shop with a Road Force balancer. They are amazing and are FAR FAR FAR superior to the standard wheel balancer. Also, if the wheels use tape weights it could have lost one.