Vibrating while idling in drive If your car shakes at high speed the cause is often mechanical imbalance. Small issues become more noticeable as speed increases. Unbalanced tires are a common reason, creating vibration that grows Understanding Wheel Weights and Vehicle Vibrations Tire Vibration Diagnosis: Is It Safe to Keep Driving? WHY IGNORING SMALL VIBRATIONS IS COSTLY That tiny vibration you feel at the steering wheel, seat, or pedals isn't normal aging it's usually the first warning sign of a problem that's