Towed my 2008 Grand Cherokee for 4 years. If yours has a quadra II transmission there is a small hole on the console. I forget what it says beside the hole -I sold it last year - where I inserted a nail to depress the switch. With the ignition "on", engine NOT running, foot on the brake, depress the switch with the nail and hold until the dash computer printout say's "neutral". Boy how easy it is to forget!! I did it all the time. Leave the transmission in PARK, lock the doors and pull away. The steering is unlocked, the transfer case is disconnected and there is nothing else you have to do. The procedure is in the manual.
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