 My original review entitled, "Computerized Fiasco, Warranty Nightmare" pertained to our experience in getting a malfunctioning radio repaired under warranty.  The so called "speed-activated" radio volume was erratic and not being regulated by the vehicle's speed.  My review was influenced by our frustration getting this fixed promptly under warranty.  Ultimately, the dealer did set up a "one-visit" appointment to diagnose the issue and had a replacement on hand.  The diagnosis confirmed there was an erratically fluctuating current (loose circuit?) in the system.  The warranty repair invoice indicates the radio unit was replaced and it now appears to be functioning per specification.Bear in mind we are in our mid 60s and technology-aversive.  That does not mean we have difficulty using new technology.  We just don't see the need and have little use for much of it.  Unfortunately, there is not a lot of choice in new vehicle packages.  My position on this is . . . lean to drive!  Don't depend on cameras, warning lights, and radar this, radar that to correct your mistakes when you're not paying attention!!!  And, especially don't make me pay a lot extra for all this wizardry.   And self-driving cars?  Don't even go there !!!Per my original review, I am still unhappy with the "radar" cruise control feature.  I have to physically turn it off every time I engage the cruise control, which is an extra step.  Other issues:  Too much complexity (too many features) in the computerized dash controls.  This can be very distracting while driving.  My only other complaint is I don't like the leather seats.  They are uncomfortable.  However, it's what my wife wanted and we have differing views on this.  Otherwise, the Highlander does drive nicely.  For the size vehicle, I would like the gas mileage to be 3-4 mpg better than it is, but 21 mpg is not all that bad.Another issue I have relates to my wife's prior Highlander, which will eventually pertain to the current model.  Cost of replacing struts is very excessive.  Most repair shops more than double the actual retail cost of the struts and then charge $110-$120 per hour for labor on top of that, resulting in estimates of over $1,000.  This is a far cry from the old days of replacing worn shocks.ORIGINAL REVIEW:     My wife wanted leather seats so we purchased the XLE model, which comes with electronic and computerized everything.  Although we paid for it, we will never use nor did we want 80% of the electronic wizardry that comes in this model.  Lots of computerized stuff ultimately equates to lots of opportunity for malfunctions.  The radio is "speed-activated," meaning the volume is supposed to increase gradually as the vehicle speed increases to compensate for road noise .  The radio in our highlander is defective.  The volume erratically and abruptly increases and decreases at any speed, even while the vehicle is idling.  It's enough to drive you nuts.  The vehicle is under warranty so I told the dealership I wanted the system replaced in one visit.  In response, I got a lot of rigmarole about protocol and was told the system would need to be removed and sent off for diagnosis.  I told them this was unacceptable as it meant several 100-mile round trips to the dealership.  To no avail.  They arranged a Saturday morning appointment but then told us they would need authorization to replace the system and since Toyota's technical service office is not open on a weekend, they could not get the approval.  The technician downloaded a software service pack that did not correct the problem.  I called the Toyota "customer care" center to lodge my complaint and insist that the problem be corrected in one additional visit.  It was like talking to a trained puppet.  More rigmarole about protocol and "I'm sorry you are being inconvenienced" and "I am unable to guarantee the problem will be fixed on your next visit."  Protocol before customer service, always !!  The vehicle also comes with "radar activated" cruise control.  Although functioning properly in our vehicle, it's the most worthless, vexing thing I've ever encountered.  Who wants a cruise system that slows the vehicle as it approaches another vehicle you intend to pass?  Consequently, I have to manually turn off the radar system every time I use the cruise control.  This is another example of just too much technology that's poorly thought out.