So I have been driving the new Toyota Grand Highlander for about a week and compared to the Yukon it's great in that it has a smooth ride, quiet, refined, a peppy take off thanks to a good combination of the 8 speed transmission and low down torque with the 2.4 liter turbo and significantly better fuel economy even though it's just the plain gas model...no hybrid. However one aspect of the safety system, which Toyota calls Safety Sense 3.0 is really intrusive and that is the automatic emergency braking which Toyota calls Pre Collision System or PCS. It can be turned off once the vehicle is started and while you are still in Park (cannot be turned off once you are driving). But to turn it off you have to go through 3 other settings, a real PITA. And it turns on by default once the engine is shut off and re-started unlike say Lane Departure Warning which can be permanently shut off. The setting is very conservative and it is unnerving to have the vehicle brake on it's own with a lot of room ahead of you in slowing traffic, not to mention that there will be a lot more wear on brake pads. Also, you must remember to shut it off when going through a car wash as otherwise the brakes jam up and the vehicle is dragged through the car wash!! The system thinks that the vehicle is going to collide with the car wash brushes!! I define this as the nanny state on overdrive where it is deemed the average driver is too dumb to judge braking distances!! By contrast in the Yukon, and yes admittedly older technology, if the system sensed that the rate of closure with the object in front of you was far too rapid, there was an intrusive audio alert and a piercing red light that shone from the instrument cluster directly into your eyes to shake you out of your day dream which was quite adequate in my opinion and it was calibrated to go off when there was the real danger of an imminent collision.