2009 Toyota 4Runner Owners Manual - Page 201

2 -4 . U sing ot he r driving syst e m s Four-w he e l drive syst e m (4 WD m ode ls) Use the four-wheel drive control switch and center differential lock switch to select the following transfer and center differential modes. n Four-wheel drive control switch Multi-mode 4WD models H2 (high speed position, two-wheel drive) Normal driving H4 (high speed position, four-wheel drive) Greater traction than two wheel drive. When you experience a loss of power, such as wheel slipping. The four-wheel drive indicator will come on. 2 When driving L4 (low speed four-wheel drive) position, Driving requiring maximum power and traction such as climbing or descending steep hills, off-road driving, and hard pulling in sand or mud, etc. The four-wheel drive and 4LO indicators will come on. 177