I already know it can handle more than 20" of water safely. During Irene I was going through at least 3' of water with no issues in ORII mode. Of course Jeep has to set a maximum to reduce warranty claims. Even an idiot going through 10" of water can hydro lock and damage major components if they do not know what they are doing.
__________________ Current: 2011 GC Overland 4X4 Mineral Grey, HEMI
__________________ SCOTT The HARDER you work...the LUCKIER you are!
2014 REDLINE red Jeep SRT "BLOODIED Edition" 1 of 1 Previous JEEP rides-
2013 Jeep Grand Cherokee SRT-deep cherry
2013 JKU 10th anniversary-white
2006 Jeep Grand Cherokee Laredo-inferno red