Kia Optima: Tire Speed Ratings
The chart below shows many of the different speed ratings currently being used for passenger car tires. The speed rating symbol is part of the tire size designation on the sidewall of the tire. This symbol corresponds to that tire’s designed maximum safe operating speed.
Wheel Size Designation
Wheels are also marked with important information that you need if you ever have
to replace one. The following explains what the letters and numbers in the wheel
size designation mean.
Example wh ...
Uniform Tire Quality Grading
The following information relates to the tire grading system developed by the
National Highway Traffic Safety Administration (NHTSA) for grading tires by tread
wear, traction and temperature perfo ...
See also:
Weight Classification System (WCS). Description and Operation
Description
In contrast to the initial one-stage airbag systems, newer restraint systems involve
complex logic to select, or alternatively suppress, various levels of safety system
deployment. In ...
Curtain air bag
Curtain air bags are located along both sides of the roof rails above the center
pillar.
They are designed to help protect the heads of the front seat occupants and the
rear outboard seat occ ...
Rear Combination Light Bulb Replacement
1. Using a cross-tip screwdriver, remove the cover.
2. Turn the bulb socket counterclock-wise and remove it from the housing.
3. Push the bulb in, then rotate it one quarter turn counterclockwise ...