Trailer hitch assemblies have different weight capacities. Toyota recommends the use of toyota hitch/bracket for your vehicle. For details, contact your toyota dealer.
Positions for towing hitch receiver and hitch ball

Connecting trailer lights
Please consult your dealer when installing trailer lights, as incorrect installation may cause damage to the vehicle’s lights. Please take care to comply with your state’s laws when installing trailer lights.
Trailer tongue weight
Trailer towing tipsDiagnosis system
Description
Engine immobiliser system data and diagnostic
trouble codes (dtcs) can be read through the
vehicle's data link connector 3 (dlc3). In some
cases, a malfunction may be occurring in the engine
immobiliser system even though the security
indicator light is not illuminated ...
On-vehicle inspection
Check accelerator pedal rod
Check the voltage.
Connect the intelligent tester to the dlc3.
Turn the ignition switch on
Turn the intelligent tester on.
Select the menu items: diagnosis /
enhanced obd ii / data list / all /
accel pos #1, accel pos #2.
Operate the acceler ...
Parts location
System diagram
...