2.1.2 – Types of Vehicle Inspection Vehicle Inspection. A Vehicle inspection will help you find problems that could cause a crash or breakdown. During a Trip. For safety you should Watch gauges for signs of trouble. Use your senses to check for problems (look, listen, smell, feel. Check critical items when you stop • Tires, wheels and rims. • Brakes. • Lights and reflectors. • Brake and electrical connections to trailer. • Trailer coupling devices. • Cargo securement devices. After-trip Inspection and Report.You should do an after-trip inspection at the end of the trip, day, or tour of duty on each vehicle you operated. It may include filling out a vehicle condition report listing any problems you find. The inspection report helps a motor carrier know when the vehicle needs repairs. 2.1.3 – What to Look For Tire Problems Too much or too little air pressure. Bad wear. You need at least inch tread depth in every major groove on front tires. You need 2/32 inch on other tires. No fabric should show through the tread or sidewall. Cuts or other damage. Tread separation. Dual tires that come in contact with each other or parts of the vehicle. Mismatched sizes. Radial and bias-ply tires used together. Cut or cracked valve stems. Re-grooved, recapped, or retreaded tires on the front wheels of a bus are prohibited.