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 ...

Temperature A, B and C
The temperature grades A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a ...

Overdrive (O/D) OFF switch
When the O/D OFF switch is pushed with the selector lever in the D (Drive) position, the indicator light in the instrument panel illuminates. Use the overdrive off mode when you need impr ...