Jan 06, 2020 · Jan 6, 2020. #3. If moving forwards/backwards doesn’t fix it, jack up one end of the vehicle so both wheels are off the floor. This should release the tension in the transmission. Make sure the H/L lever is in H or N and the button on the dash is off. I.. Dec 28, 2012 · H4: 4 wheels driven, open centre differential: Press red button on side of 4wd selector. 4 wheel Indicator will illuminate in centre of dash when fully engaged. You may select/deselect this mode at speeds up to 100Kph. May be used anytime extra traction is desired. H4L: 4 wheels driven, centre differential locked: Move 4wd-selector lever fully .... "/>Center differential lock indicator light 4runner