This applies for pretty much all repair truck functions. Repairs need to be positioned just right, decommisioning needs to be just right. It's a rather small but annoying QoL issue. I would go so far as to say this applies to other fuctions as well. Supply transer from a depot for instance needs the driver to be right "on the spot" near the sign to get a transfer from in the cab, same with gear transfer from an armory to vic.