odd makes no sense..without rear climate your back seats should receive same air flow as front seat settings minus the upper windshield vents...if u have front chest level vents set to blow air the vents in he back should receive same temp air.. if u have ur front climate setting to floor only then only rear floor vents will receive air and also should be same temp as front...
same situation even with rear climate package if you set climate control to rear same as driver setting in the climate control (this takes control away from rear seat passengers).. i do that sometimes if we go out with another couple and both wives sit in the back to keep them from turning the rear heat up to 85.....
call your ca
2012 GT 550ix Msport (feb12)(ok early march 12)
09 X5 4.8
12 X3 35i (the wife)
61 356 roadster