Toyota Tundra Service Manual > 4wd Control Switch: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT INDICATOR LIGHT (a) Inspect the 4HI Indicator Light: (1) Start the engine. (2) Change the 4WD control switch from 2WD to 4H. (3) Check the 4HI indicator light. OK: The 4HI indicator light comes on or the 4HI indicator light comes on after it is blinking. If ...
