TOYOTA 2011 Tundra - Manual (Page 610)

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5-1. Essential information
Type B
Towing eyelet
n Emergency towing procedure
The engine switch must be in the ACC (engine off) or the ON
(engine running) position.
4WD models: Put the front-wheel drive control switch in 2WD.
Shift the shift lever to N.
Release the parking brake.
CAUTION
n Caution while towing
l Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelet and the cables or chains. Always
use caution for the surroundings and other vehicles while towing.
l If the engine is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.