The car shakes when going at speeds as low as 48 mph and as high as 68 mph that I know of. Typically, it shakes heaviest from the mid-50 mph range to the mid-60 mph range. I rarely Drive the full speed limit for energy conservation reasons, so I cannot tell you how much higher it goes on the range. The car has had the wheels rebalanced three times (installation, upon purchase from the dealer and on a take back to the dealership), the alignment has been checked twice and I have spoken to the tire manufacturer about the tires being the cause of this. I took the tires into an authorized retailer to no avail. With everything checked, including a road force balancing of the tires, my 4Runner still shakes disturbingly. I called a service advisor at another Toyota dealership today (they were not the seller). In describing the problem to him, he cut me off and said it is a known problem. He went on to share that the dealership had been in contact with Toyota Corporate. It is disturbing for me as a driver, my passengers and from an engineering standpoint; shaking can never be good. It could easily cause premature and unnecessary wear to drive, suspension and steering parts. It could lead to a serious and fatal accident over time. The shaking, I imagine, could also lead to a problem in less than ideal driving conditions such as rain, snow or ice as well.

- Carlsbad , CA, USA

I bought my 4runner brand new last year. To change the differential from H4F to H4L, I stop the car and change the shifter into neutral position. Once in neutral position, I change the differential knob H4F to H4L. Then I start driving again. My expectation is the when shifting the differential from H4F to H4L, the dashboard light will change from yellow to green just like my previous 4runner. But this model does not change from yellow to green to identify successful transfer of gear from high to lower gear. The dashboard color stays yellow. I believe this is a defect. I believe there is a defect in differential locking mechanism or at the very least the lelectronics that updates the dashboard. The new models also have same issue. I believe anytime you see a yellow light in the dashboard, it is a warning message that something is wrong or will be wrong in the future. Toyota dealers said this is a standard color but I dont believe because their manual says yellow color means warning.

- West Chester, PA, USA