Dinghy towing
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 four wheels on the ground.
See also:
2010 Lexus GX 460
When the Lexus GX 460 showed up in my driveway, I almost discounted it
immediately. It seemed like another honkin' big SUV that requires honkin' deep
pockets to purchase; my test vehicle was price ...
Engine/Transmission/Drivetrain/Performance
The Lexus LS 460 models deliver the luxury of powerful, smooth performance
from a 4.6-liter V8 teamed with an eight-speed automatic transmission. The
engine produces 380 horsepower and 367 lb.-ft. ...
PCS (Pre-Collision System)
When the radar sensor detects an unavoidable frontal collision, safety
systems
such as the brakes and seat belts are automatically engaged in an
attempt to lessen damage.
Pre-collision seat belts ...
