business vehicle

So on my 2017 taxes I took the 179 deduction for a used 2011 work truck. On 2018 taxes, turbotax recognized that and on my actual expenses, did not add more depreciation. However, for 2019 there is obviously a glitch and it is giving me a huge depreciation write off for this same vehicle, which makes no sense because the actual miles on the truck are less than the other truck, expenses are less, no interest on this one, less insurance, and it shouldn't be giving me depreciation at all? Do I have to manually correct this or do turbotax workers read this and address problems.