Volvo XC90 Twin Engine 2019, Owner'S Manual

Page: 453 / 700

STARTING AND DRIVING
451
Symbol Specification
Constant glow for 2 seconds when
the engine is started: Automatic
function check.
Constant glow for more than 2
seconds: Fault in the ABS system.
The car's normal brake system is
still working, but without the ABS
function.
If the message
Brake pedal Cha-
racteristics changed Service
required
is shown, the system for
"Brake-by-wire" is disengaged. A
higher pedal pressure is required
to produce braking effect.
WARNING
If both the warning lamps for brake fault and
ABS fault illuminate at the same time, a fault
has occurred in the brake system.
•
If the level in the brake fluid reservoir is
normal at this stage, drive carefully to the
nearest workshop and have the brake
system checked - an authorised Volvo
workshop is recommended.
•
If the brake fluid is below the MIN level in
the brake fluid reservoir, do not drive fur-
ther before topping up the brake fluid.
The reason for the loss of brake fluid
must be investigated.
Related information
•
Brake assistance (p. 451)
•
Automatic braking when stationary (p. 456)
•
Help when starting on a hill (p. 457)
•
Braking on wet roads (p. 452)
•
Braking on gritted roads (p. 452)
•
Brake system maintenance (p. 452)
•
Brake lights (p. 157)
Brake assistance
The brake assist system (BAS
3
) helps to
increase brake force during braking, and can
thereby shorten the braking distance.
The system detects the way in which the driver
brakes and increases brake force where neces-
sary. The brake force can be boosted up to the
level when the ABS system is engaged. The
function is suspended when the pressure on the
brake pedal decreases.
Related information
•
Foot brake (p. 450)
3 Brake Assist System