Brakes freezing up in winter when temperature is 10 degrees with windchill of minus 20. The brakes did not work. Calipers froze up and vehicle failed to stop. Had an accident with it because of the brakes. The dealer fixed the vehicle and said that nothing is wrong with the brakes. Another time I tried to stop at a stop sign, when there was snow on the ground and only the front brakes worked. The rear brakes did nothing. Again the dealer said there is nothing wrong, and only the front brakes are supposed to lock up, but not the rear.
Wrote to Jeep and they said the dealer is right and he is the only one that understands Jeep brakes. Took it to a brake shop and they told me that the proportioning valve is bad. Jeep dealer says that the brake shop doesn't know jeep brakes.
At 5000 miles the transmission is starting to slip when you stop briefly at an intersection, then try to go again.
Sometimes my rear window hatch opens on its own for no reason and the panic alarm goes off. It's intermittent and no one can find the cause.