The way I read it, it seems questionable if this vehicle was really taken out of service by the taxpayer.  It seems to have just switched Schedule Cs. 

*IF* that is the case, I would (1) leave the truck on the first Schedule C, (2) manually override the depreciation amount on that Schedule C to reflect a partial year, (3) manually override the depreciation on the second Schedule C to reflect the other partial year, and (4) make notes to switch the vehicle to the second Schedule C for next year (using the original "placed in service" date).