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.
Back Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
When the back door entry lock and unlock functions do not operate, one of the
following may be malfunctioning: 1) the power door lock control system, 2) the electrical
key antenna (outside luggage) or 3) the certification ECU.
WIRING DIAGRAM
...
Child restraint systems with a top tether strap
Secure the child restraint system using a seat belt or the lower anchors, and
remove the head restraint.
Open the anchor bracket cover, latch the hook onto the anchor bracket and
tighten the top tether strap.
Make sure the top tether strap is securel ...