If it's anything like my 2005 Highlander it is automatic. There's a weight sensor in the passanger seat. Given that airbags can kill small kids if they're put in the front, the car companies have it set so the sensor turns off the airbag for any weight under about 80 pounds. If a heavier preson sits in the passanger seat i the "Air Bag Off" indicator will go out and the airbag will operate in the event of an impact.
The 2007 Toyota Highlander has 57.9 in. of front shoulder room.
The 2007 Toyota Highlander has 55.1 in. of front hip room.
The 2007 Toyota Highlander has 40.0 in. of front head room.
The 2007 Toyota Highlander has 40.7 in. of front leg room.
The front track of the 2007 Toyota Highlander is 5 ft. 2.2 in. (62.2 in.).
The 2007 Toyota Highlander-Hybrid has 42.9 in. of front leg room.
The 2007 Toyota Highlander-Hybrid has 40.1 in. of front head room.
The 2007 Toyota Highlander-Hybrid has 57.9 in. of front shoulder room.
The 2007 Toyota Highlander-Hybrid has 55.2 in. of front hip room.
The front track of the 2007 Toyota Highlander-Hybrid is 5 ft. 2 in. (62 in.).
The 2007 Toyota Highlander has front wheel drive.
The 2007 Toyota Highlander-Hybrid has front wheel drive.