All-wheel drive lock mode can be used when a large amount of drive power needs to be applied to all the wheels, such as when the vehicle gets stuck in mud and you need to free it.
Press the switch.
The torque of the engine is distributed to the rear wheels to the maximum extent possible in accordance with driving conditions.
Pressing the switch again cancels all-wheel drive lock mode and returns the dynamic torque control awd system to normal mode.

All-wheel drive lock mode can be operated when
All-wheel drive lock mode
Things you should know
Driving assist systemsLocation
PROBLEM SYMPTOMS TABLE
Symptom
Suspected Area
Rear window defogger does not operate
(Indicator lamp On)
Communication Function
RR DEF 30 A Fuse
Defogger Relay
Rear Window Defogger Wire
Wire Harness
A/C ECU ...