ou812

My 2011 XLT seems to be always heading South! Never changes. I read the calibration section of the manual, and it says to press the radio presets 7 & 9 together for 5 seconds to enter the zone, and for 10 seconds to enter calibration mode to drive in circles.

Problem is, holding down the presets does nothing. Key on, Key off, engine running, engine stopped, etc. I think the radio is supposed to be off, because I read somewhere that the 'top half of the display must be blank'. In my case, even with radio off, my bluetooth light is still on, and in the upper half of display - does it count?

Does anybody know the trick here???

Thanks