STARTING AND DRIVING
430
Foot brake
The foot brake is part of the brake system.
The car is equipped with two brake circuits. If a
brake circuit is damaged, the brake pedal will
engage deeper. Higher pressure on the pedal will
therefore be needed to produce the normal brak-
ing effect.
WARNING
In a de-energised car with the electric motor
and fuel-driven engine switched off it is not
possible to brake the car.
In very hilly terrain or when driving with a heavy
load the brakes can be relieved by using engine
braking in gearshift mode
B
.
Anti-lock braking system
The car has anti-lock brakes, Anti-lock Braking
System (ABS), which can prevent the wheels
from locking while braking and allows maintained
steering control. Vibration may be felt in the
brake pedal when this is engaged and this is nor-
mal.
A short test of the ABS system is made automat-
ically after the car has been started when the
driver releases the brake pedal. A further auto-
matic test of the system may be made at low
speed. The test may be felt as pulses in the
brake pedal.
Light braking charges the hybrid battery
The electric motor's engine brake is used during
light braking. The car's kinetic energy is then
converted to electrical energy instead, which is
used to charge the hybrid battery. Battery charg-
ing with electric motor braking is indicated in the
driver display.
The driver display indicates charging during electric
motor braking.
This function is active in the speed interval
150-5 km/h (93-3 mph). During heavier braking,
as well as outside the speed interval, braking is
supplemented by the hydraulic brake system. The
driver's display shows this by the indicator being
down in the red zone.
Symbols in the driver display
Symbol
Specification
Check the brake fluid level. If the
level is low, fill with brake fluid and
check for the cause of the brake
fluid loss.
Fault in pedal sensor.
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. The
brake pedal engages deeper and a
higher pedal pressure is required
to achieve braking effect.
Summary of Contents for S90 TWIN ENGINE
Page 1: ...S90 T W I N E N G I N E OWNER S MANUAL ...
Page 2: ......
Page 17: ...15 ALPHABETICAL INDEX Alphabetical Index 645 ...
Page 18: ......
Page 19: ...OWNER INFORMATION ...
Page 28: ......
Page 29: ...YOUR VOLVO ...
Page 43: ...SAFETY ...
Page 76: ......
Page 77: ...DISPLAYS AND VOICE CONTROL ...
Page 146: ......
Page 147: ...LIGHTING ...
Page 161: ...WINDOWS GLASS AND MIRRORS ...
Page 177: ...SEATS AND STEERING WHEEL ...
Page 191: ...CLIMATE ...
Page 223: ...KEY LOCKS AND ALARM ...
Page 243: ...KEY LOCKS AND ALARM 241 Country Area Type approval Oman Serbia ...
Page 246: ... KEY LOCKS AND ALARM 244 Country Area Type approval Oman Serbia ...
Page 266: ......
Page 267: ...DRIVER SUPPORT ...
Page 403: ...HYBRID INFORMATION ...
Page 424: ......
Page 425: ...STARTING AND DRIVING ...
Page 484: ......
Page 485: ...SOUND MEDIA AND INTERNET ...
Page 539: ...WHEELS AND TYRES ...
Page 565: ...LOADING STORAGE AND PASSENGER COM PARTMENT ...
Page 577: ...MAINTENANCE AND SERVICE ...
Page 629: ...SPECIFICATIONS ...
Page 661: ......
Page 662: ...TP 25059 English Int AT 1746 MY18 Copyright 2000 2017 Volvo Car Corporation ...