How do you repair your truck in 18 wheels of steel American long haul

Go to your map and make sure that the words "services" and "garages" are filled in. Look for a service station or garage on the map. You can go there. When you get there, you park your truck in an icon that has a wrench and some tools. You shut your truck off, set the parking brake (space), and press "enter" on the keyboard. You can then choose everything you want fixed, then click "okay." Then exit, and you're truck will be like new.