Bought my '03 Overland in '07 with 60k. Now has 145k. Love the vehicle! I bought the extended warranty which ended up covering blend doors, window regulator, seat heaters (recalled item), leaky seals, etc. Just had a failed radiator ruin the tranny on a long trip. Real DRAG! now fixed. $$ Hopefully good for many more miles. Featured as "onyx" as a recent addition to the registry. Have fun!
Blend doors in a WJ GC with auto climate control tended to be a nightmare.
The primary symptom that I encountered was cold air on the passenger side while the driver has heat. Had I not purchased the extended warranty the $1200 repair would have killed me. The dash has to be removed to correct this.
Window regulators also fail. My passenger side failed and again, the $400 repair was covered under warranty. GC's tend to start self destructing around 150K.
My old 98 Laredo was really starting to nickel and dime me at that mileage but I got T-Boned by an old lady so that vehicle is history. I was ok so I then got the '03 Overland to replace it. Over-Maintain is the best advice.