Spec your 2010 Toyota 4Runner SR5 CNET-style and you'll find your SUV equipped with a 15-speaker Premium JBL audio system with navigation that receives input from a four-disc in-dash CD changer, a USB port with iPod connectivity, XM Satellite Radio, or Bluetooth audio streaming. Look under the dashboard, and you'll find a lonesome button labeled "party mode." But what does that do?
We did a little digging and found that the party mode is a special audio setting that, according to Toyota, "raises the bass and transfers the equalization to the rear of the vehicle." This mode is designed to be used with the rear hatch open, placing emphasis on the rear speakers, for tailgating.
So, why not just call it tailgating mode and avoid the confusion? We assume that "party mode" just fit on the button better.