Tread wear
The tread wear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified U.S. Government test course. For example, a tire graded 150 would wear one and one-half times as well on the government course as a tire graded 100.
The relative performance of tires depends upon the 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 conditions.
See also:
Engine
Problem
Possible causes/consequences and
Solutions
The yellow Check Engine warning lamp lights up while the engine is
running.
There may be a malfunction, for exampl ...
Switching on/off
The steering-wheel heating heats the leather
areas of the steering wheel.
Make sure that the SmartKey is in position
2 in the ignition lock.
To switch on/off: turn the lever in the
direc ...
Interior lighting control
Important notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the SmartKey is in positio ...