Volvo XC90 Owner's Manual page 208

09 Maintenance and service
Oils and fluids
09
WARNING
If the brake fluid is under the MIN level in the
brake fluid reservoir, do not drive further
before topping up the brake fluid.
The reason for the loss of brake fluid must
be investigated.
Checking and topping up the power
steering fluid
FULL
ADD
NOTE
Check the level frequently.
208
Check the level frequently. The fluid does not
require changing. The level must lie between
the ADD and FULL marks. See the capacities
and recommended grade on page 283.
NOTE
If a fault should arise in the power steering
system or if the car is without power and
must be towed, it can still be steered. How-
ever, the steering will be much heavier than
normal and it will require more effort to turn
the steering wheel.