We tow this car behind our motor home. Exactly following the manufacturers instructions, the parking brake would not release when putting the transmission into the towing mode. For reasons undetermined as yet, after about 10 tries we were finally able to get it into the towing mode with the parking brake released. All other functions worked perfectly, including putting the transfer case into neutral and reengaging the transfer case. I see several complaints about this type of problem but no one has posted a solution. I haven't had a chance to get into the dealer yet but will do so shortly.