See also:

Uniform tire quality grading
DOT (Department Of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades. Quality grades can be found where applicable ...

Three-way catalyst
The three-way catalyst is an emission control device installed in the exhaust system. Exhaust gases in the three-way catalyst are burned at high temperatures to help reduce pollutants. ` ...

Controls
Outside air circulation: Push the air recirculation button to turn off the indicator light on the button. The air flow is drawn from outside the vehicle. Air recirculation: Push the air recircu ...