Vehicles With A Vibration Or Shake: Description
Immediately following delivery, some vehicles may exhibit a vibration or shake due to temporary tire flat-spotting. The vibration may be felt in the steering wheel or seat and will be most noticeable at highway speeds 96 kph (60 mph). This could be misinterpreted as an out of balance tire. Flat Spotting can occur if the vehicle has not been moved for a few days or for a longer period of time. In most cases it is temporary condition. In extreme cases it can be permanent.
Tire pressure is often inflated to the maximum sidewall pressure at the vehicle assembly plant to prevent "flat spots" on tires during new vehicle shipping and vehicle storage. Inflating tires to the maximum sidewall tire pressure helps to preserve the integrity of the tire and reduces potential technical issues.
It is important to remove temporary flat spotting before performing tire balance, tire run-out or tire road force checks. If the flat spotting is not removed it can result in incorrect measurements.