Volvo XC90: Wheels and tires / Tread wear indicator
The tread wear indicator shows the status of the tire's tread.

The tread wear indicator is a narrow elevated 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) is left on the tread,
the tread will be at the same height as the tread wear indicator. Replace the tire
as soon as possible. Tires with low tread offer very poor traction in rain or snow.
Tires with tread designed to roll in only one direction are marked with an
arrow on the sidewall.
The arrow shows the tire's direction of rotation.
The tire should maintain the same direction of rotation throughout its service
life...
The following is a glossary of tire-related terms.
The tire suppliers may have additional markings, notes or warnings such as standard
load, radial tubeless, etc...
Other information:
The audio and media system consists of a media player and a radio. A cellular phone can also be connected through Bluetooth to use hands-free functions or play music in the vehicle. When the vehicle is connected to the Internet, it is also possible to use apps to play media...
Grocery bag holders (hooks) help keep shopping bags in place and prevent them
from falling over and spilling their contents in the cargo compartment.
On the sides of the cargo compartment
There are two fold-out holders in the side panels, one on each side of the cargo
compartment...