Infiniti QX: Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and one-half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.
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 ...
Traction AA, A, B and C
The traction grades, from highest to lowest,
are AA, A, B and C. Those grades
represent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified govern ...
See also:
Towing the Vehicle
Notice: To avoid damage, the disabled vehicle should be towed with all four wheels
off the ground. Care must be taken with vehicles that have low ground clearance
and/or special equipment. Always fl ...
Electric parking brake (EPB)
WARNING
Do not rely on the parking brake to hold the vehicle stationary if the brake
warning lamp is illuminated or the EPB warning lamp is flashing. Seek qualified
assistance urgently.
...
Trailer Wiring Harness
Heavy-Duty Trailer Wiring Harness Package
The vehicle has a seven-pin universal heavy-duty trailer connector attached to
the rear bumper beam next to the integrated trailer hitch.
The seven-wire ...
