The sealing rings are synthetic resin with chamfered ends. Check the condition of the sealing rings, and replace them only if they are worn, distorted, or damaged.
For a better fit, squeeze sealing rings together slightly before installing them.

Apply ATF to the new sealing rings, then install them on the secondary shaft.

After installing the sealing rings, verify the following:
The rings are fully seated in the groove.
The rings are not twisted.
The chamfered ends of the rings are properly joined.
DOT Tire Quality Grading (U.S. Vehicles)
The tires on your vehicle meet all U.S. Federal Safety Requirements. All
tires are
also graded for treadwear, traction, and temperature performance according
to Department of Transportation (DOT) ...
Three Way Catalytic Converter
The three way catalytic converter contains precious metals that serve as catalysts,
promoting chemical reactions to convert the exhaust gasses without affecting the
metals.
The catalytic converte ...
Listening to Voice Guidance
MAP MENU (on map)
► VOICE
As you approach each guidance point, a pop-up window is displayed on the map
screen with instructions for you to follow. Voice guidance for each guidance
point is ...