Your vehicle is not designed to be dinghy towed (with 4 wheels on the ground) behind a motor home.
Notice
To avoid serious damage to your vehicle
Do not tow your vehicle with 4 wheels on
the ground. 
To prevent causing serious damage to the transmission and dynamic torque control awd system (awd models)
2Wd models: never tow this vehicle from
the rear with the front wheels on the
ground. This may cause serious damage
to the transmission. 
Awd models: never tow this vehicle with
any of the wheels on the ground. This
may cause serious damage to the transmission
and dynamic torque control
awd system. 
Trailer towing tipsDownhill assist control operation switch (test mode dtc)
Description
The downhill assist control switch is connected to the skid control ecu in
the abs and traction
actuator.
Dtc c1379/74 can be detected when the downhill assist control switch sends the
downhill assist control
switch signal or test mode ends. Dtc c1379/74 is output only in t ...
Rear door courtesy switch
Components
Removal
Hint:
Use the same procedures for the rh and lh sides.
The procedures listed below are for the lh side.
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal t ...
If the shift lever cannot
be shifted from p
If the shift lever cannot be shifted with your foot on the brake
pedal, there may be a problem with the shift lock system (a system
to prevent accidental operation of the shift lever). Have the
vehicle inspected by your toyota dealer immediately.
The following steps may be used as an emergency ...