2012 Toyota Highlander Owners Manual - Page 390
2012 Toyota Highlander Manual
Page 390 highlights
3 -7 . Ot he r int e rior fe a t ure s Pow e r out le t s The power outlet can be used for the following components. 12 V: Accessories that run on less than 10 A. 120 VAC: Accessories that use less than 100 W.