03 trying to kick in to 4x4?

[TWS]

My 03 Limited V8 keeps trying to grab traction while driving in auto mode. Turn knob to 4x4 high it stops. Dealer says that I didn't rotate tires (which is right) and the sensors think I am losing traction. Says a knew set of tires would take care of it. He gave me front and rear measurements in 32nd's, ended up about a half inch differents (48,000 miles). Does this make sense to anyone? Tires will be about $550, hate to buy and not take care of problem.

 

[Skibug]

If your tires are not the same size, it will try and kick the AWD system in. A half inch could be enough to cause this. You need to rotate your tires as needed for this not to happen. If you go 48,000 miles and don't rotate your tires, you will wear them unevenly. Just as they tell you, you need new tires to fix the problem.