2009 Toyota Sequoia Owners Manual - Page 254

2-4. Using other driving systems NOTICE n To prevent damage to the center differential l For normal driving on dry and hard surface roads, unlock the center differential. l Unlock the center differential after the wheels are out of the ditch or off the loose or bumpy surface. l Do not push the center differential lock switch when the vehicle is cornering or when its wheels are spinning freely off the ground. 220