OK ~~ on the reverse of my answer to your question, Were looking at a2002 that could be towed 4 down naked. Then the 2003 came out and had to go thru what I posted earlier. Was told Toyota changed it as TOO many Big Rigs were driving too many miles ~ too many hours. Would be OK if travelled 200=225 miles ~ Stopped put on the brake and ran it thru the gears. Lost the 'umbilicus on a steep drieway and screech alarm came on Lights etc etc worked just the pump detached 'local yokel' wzs not someone wanted working on our stuff. Called Remco installer he called Remco ~ Told us same thing 200-225 stop & run the gears. Heck the dogs had to stop anyway. Worked for us. Sometimes the alarm goes a little screwy so we un doit and do the 200-225. Over 14 years & no problem to date. Give it your best. K