Wheels and Tires

Tread Wear Indicator

~1min read

The tread wear indicator shows the condition of the tire tread.

Volvo XC90. Tread wear indicator

The tread wear indicator is a narrow raised strip running across the tire's longitudinal tread grooves. The letters TWI (Tread Wear Indicator) are visible on the side of the tire. When approximately 1.6 mm (1/16 inch) of tread remains, the tread will be at the same height as the tread wear indicator. Replace the tire as soon as possible. Tires with worn tread offer very poor traction in rain or snow.

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