00 SIENNA(U) Traction AA, A, B, C—The traction Warning: The temperature grades for this grades, from highest to lowest, are AA, A, tire are established for a tire that is prop- B, and C, and they represent the tire’s erly inflated and not overloaded. Exces- ability to stop on wet pavement as mea- sive speed, underinflation, or excessive sured under controlled conditions on spe- loading,