brake VOLVO XC90 2006 Owner's Manual

2006 VOLVO XC90
NOTE: A warning message will be displayed in the text window in the instrument\
panel when the
battery charge is low.
pg. 93 Starting and driving
Automatic transmission with Geartronic
P Park
Use this position when starting the engine or parking the vehicle.
Never use P while the vehicle is in motion.
The parking brake should also be set whenever the vehicle is parked.
The gear selector is mechanically locked in the P position (SHIFTLOCK)\
. To release the gear
selector from this position, the engine must be running (or the ignitio\
n key must be in position II) and
the brake pedal must be depressed.
N (Neutral)
Neutral - no gear engaged. Use the parking brake.
WARNING!
Never leave the vehicle unattended when the engine is running. If, by mi\
stake, the gear selector is
moved from P, the vehicle may start moving.
R (Reverse)
Never engage R while the vehicle is moving forward.
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pg. 96 Starting and driving
Brake system
BRAKE Brake circuit malfunction
The brake system is a hydraulic system consisting of two master cylinder\
s and two separate brake
circuits. If a problem should occur in one of these circuits, it is stil\
l possible to stop the vehicle with the
other brake circuit.
If the brake pedal must be depressed farther than normal and requires gr\
eater foot pressure, the stopping
distance will be longer.
A warning light in the instrument panel will light up to warn the driver\
that a fault has occurred.
If this light comes on while driving or braking, stop immediately and ch\
eck the brake fluid level in the
reservoir.
NOTE: Press the brake pedal hard and maintain pressure on the pedal - do not p\
ump the brakes.
WARNING!
If the fluid level is below the MIN mark in the reservoir or if a "Brake\
failure - Service urgent"
message is displayed in the text window: DO NOT DRIVE. Have the vehicle \
towed to a Volvo
retailer and have the brake system inspected.
NOTE: When the vehicle is at a standstill and the engine is idling, e.g. at a \
traffic light and the brake
pedal is depressed, the pedal may go down slightly. This is a normal fun\
ction of the power-assisted
brake system.
Power brakes function only when the engine is running
The power brakes utilize vacuum pressure which is only created when the \
engine is running. Never let
the vehicle roll to a stop with the engine switched off.
If the power brakes are not working, the brake pedal must be pressed app\
roximately four times harder
than usual to make up for the lack of power assistance. This can happen \
for example when towing your
vehicle or if the engine is switched off when the vehicle is rolling. Th\
e brake pedal feels harder than
usual.
Water on brake discs and brake pads affects braking
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2006 VOLVO XC90
Driving in rain and slush or passing through an automatic car wash can c\
ause water to collect on the
brake discs and pads. This will cause a delay in braking effect when the\
pedal is depressed. To avoid
such a delay when the brakes are needed, depress the pedal occasionally \
when driving through rain,
slush, etc. This will remove the water from the brakes. Check that brake\
application feels normal. This
should also be done after washing or starting in very damp or cold weath\
er.
Severe strain on the brake system
The brakes will be subject to severe strain when driving in mountains or\
hilly areas, or when towing a
trailer. Vehicle speed is usually slower, which means that the cooling o\
f the brakes is less efficient than
when driving on level roads. To reduce the strain on the brakes, shift i\
nto a lower gear and let the engine
help with the braking. Do not forget that if you are towing a trailer, t\
he brakes will be subjected to a
greater than normal load.
pg. 97 Starting and driving
Brake system (contd)
Anti-lock brakes (ABS)
If the warning lamp lights up there is a malfunction of the ABS system (\
the standard braking system will
however function) and the vehicle should be driven cautiously to a Volv\
o retailer for inspection. The
Anti-lock Braking System (ABS) helps to improve vehicle control (stop\
ping and steering) during severe
braking conditions by limiting brake lockup. When the system "senses" im\
pending lockup, braking
pressure is automatically modulated in order to help prevent lockup, whi\
ch could lead to a skid.
This system performs a self-diagnostic test when the engine is started a\
nd when the vehicle first
reaches a speed of approximately 12 mph (20 km/h). The brake pedal will pulsate several times and a
sound may be audible from the ABS control module. This is normal.
To obtain optimal effect from the ABS system, constant pressure should b\
e kept on the brake pedal. Do
not pump the brake pedal.
The switching of the ABS modulator will be audible and the brake pedal w\
ill pulsate during braking.
Please be aware that ABS does not increase the absolute braking potentia\
l of the vehicle. While control
will be enhanced, ABS will not shorten stopping distances on slippery su\
rfaces.
ABS with EBD (Electronic Brake Force Distribution)
EBD is an integrated part of the ABS system. EBD regulates the hydraulic\
pressure to the rear brakes to
help provide optimal braking capacity. The brake pedal will pulsate duri\
ng braking, which is normal.
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2006 VOLVO XC90
If the BRAKE and ABS warning lights come on at the same time, this could\
indicate a fault in the brake
system.
l Stop the vehicle in a suitable place and switch off the engine.
l Restart the engine.
l If both warning lights go off, no further action is required.
l If both lights are still on after the engine has been restarted, switch \
off the engine again and check the
brake fluid level (see
page 147 for the location of the brake fluid reservoir).
l If the brake fluid level is above the MIN mark, drive carefully to an au\
thorized Volvo retailer and
have the brake system inspected.
WARNING!
If the fluid level is below the MIN mark in the reservoir or if a "Brake\
failure - Service urgent"
message is displayed in the text window: DO NOT DRIVE. Have the vehicle \
towed to a Volvo
retailer and have the brake system inspected.
Emergency Brake Assistance (EBA)
EBA is designed to provide full brake effect immediately in the event of\
sudden, hard braking. The
system is activated by the speed with which you depress the brake pedal.\

NOTE:
l When the EBA system is activated, the brake pedal will go down and press\
ure in the brake system
immediately increases to the maximum level. You must maintain full press\
ure on the brake pedal in
order to utilize the system completely. EBA is automatically deactivated\
when the brake pedal is
released.
l When the vehicle has been parked for some time, the brake pedal may sink\
more than usual when the
engine is started. This is normal and the pedal will return to its usual\
position when it is released.
pg. 98 Starting and driving
Dynamic Stability Traction Control (DSTC)
The DSTC system on the Volvo XC90 consists of a number of functions:
1. Traction control (TC)
This function is designed to help reduce wheel spin by transferring powe\
r from a drive wheel that begins
to lose traction to the wheel on the opposite side of the vehicle (on t\
he same axle). TC monitors and
compares the rotational speed of the drive wheels. If one of the drive w\
heels shows a tendency to spin,
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2006 VOLVO XC90
the difference in speed is immediately detected. This triggers the Anti-\
lock Brake System, which brakes
the spinning wheel until the difference in rotational speed is corrected\
.
TC is most active at low speeds, and a pulsating sound will be audible w\
hen the system is regulating
wheel spin. This is quite normal.
This is one of the DSTC system's permanent functions and is not affected\
when the DSTC button on the
center control panel is pressed.
2. Spin control (SC)
The spin control function is designed to help prevent the drive wheels f\
rom spinning while the vehicle is
accelerating. This is done by temporarily reducing engine torque to the \
drive wheels, which helps
improve tractive force.
Under certain circumstances, such as when driving with snow chains, or d\
riving in deep snow or loose
sand, it may be advisable to temporarily switch off this function for ma\
ximum tractive force. This is
done by pressing the DSTC button on the center control panel for at leas\
t a half a second.
When the SC function has been switched off:
l The text window will briefly display "DSTC SPIN CONTROL OFF"
l The LED in the DSTC button will be off.
3. Active Yaw Control (AYC)
This function helps maintain directional stability, for example when cor\
nering, by braking one or more
of the wheels if the vehicle shows a tendency to skid or slide laterally\
. This is done by activating the
Anti-lock Braking System. A pulsating sound will be audible when the fun\
ction is active, which is quite
normal. If you apply the brakes while this function is active, the brake\
pedal will feel stiffer than usual.
This is also one of the DSTC system's permanent functions and is not aff\
ected when the DSTC button on
the center control panel is pressed.
4. Roll Stability Control (RSC)
RSC utilizes a gyro-sensor to monitor the vehicle's angle of inclination\
, and the rate at which this angle
changes. If necessary, RSC activates the Anti-lock Brake System to brake\
one or more of the wheels to
help maintain stability. A pulsating sound will be audible when the func\
tion is active, which is quite
normal. If you apply the brakes while this function is active, the brake\
pedal will feel stiffer than usual.
This is one of the DSTC system's permanent functions and is not affected\
when the DSTC button on the
center control panel is pressed.
The DSTC button
The DSTC button in the center control panel is used to switch the Spin C\
ontrol (SC) function on or off.
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2006 VOLVO XC90
The button must be pressed for at least a half second to prevent SC from\
being switched off
inadvertently.
When the system has been switched off, the green indicator lamp in the b\
utton will go out and "DSTC
SPIN CONTROL OFF" will be displayed in the text window.
All DSTC functions are (re)activated each time the engine is started.
pg. 99 Starting and driving
Dynamic Stability Traction Control (DSTC) (contd)
The Stability Control indicator light
The Stability Control indicator light will come on for approximately 2 s\
econds when the ignition is
switched on as the system performs a self-diagnostic test.
The Stability Control indicator light will flash when:
l Traction Control is actively functioning to help avoid drive-wheel spin.\

l Spin Control is actively functioning to help avoid loss of traction duri\
ng acceleration.
l Active Yaw Control is actively functioning to help avoid skids or latera\
l slides.
l Roll Stability Control is actively functioning to help avoid a roll-over\
situation.
The warning symbol in the instrument panel
A steady yellow glow indicates:
l That the system has been automatically disengaged due to a fault. "ANTI \
SKID SERVICE
REQUIRED" will be displayed in the text window. If this occurs, stop the\
vehicle in a suitable place,
switch off and restart the engine. If the light remains on, an authorize\
d Volvo retailer should check the
system.
l In the event of high brake temperature, "TRACTION CONTROL TEMPORARILY OF\
F" will be
displayed in the text window.
The system will automatically switch on again when the brakes have coole\
d.
pg. 100 Starting and driving
Park assist
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2006 VOLVO XC90
To attach the towing eyelet:
A Use a coin to pry open the lower edge of the cover (A).
B Screw the towing eyelet (C) in place (B), first by hand and then us\
ing the tire iron until it is securely
in place.
After the vehicle has been towed, the eyelet should be removed and retur\
ned to the tool bag. Press the
cover back into position.
Precautions when the vehicle is in tow
l The steering wheel must be unlocked. Turn the ignition key to position I\
or II.
l The gear selector must be in position N.
l Maximum speed: 50 mph (80 km/h). Do not exceed the maximum allowable t\
owing speed.
l Maximum distance with front wheels on ground: 50 miles (80 km).
l While the vehicle is being towed, try to keep the tow rope taut at all t\
imes.
l The vehicle should only be towed in forward direction.
CAUTION
- Please check with state and local authorities before attempting this t\
ype of towing, as vehicles being
towed are subject to regulations regarding maximum towing speed, length \
and type of towing device,
lighting, etc.
- If the vehicle's battery is dead, do not attempt to start the vehicle \
by pushing or pulling it as this will
damage the three-way catalytic converter(s). The engine must be jump s\
tarted using an auxiliary
battery (see
page 103).
- If the vehicle is being towed on a flat bed truck, the towing eyelets \
must not be used to secure the
vehicle on the flat bed. Consult the tow truck operator.
WARNING!
- Remember that the power brakes and power steering will not function wh\
en engine is not running.
The braking and steering systems will function but the brake pedal press\
ure required is 3 - 4 times
above normal and greater steering effort must be exerted.
- The towing eyelets must not be used for pulling the vehicle out of a d\
itch or for any similar purpose
involving severe strain. Do not use the towing eyelets to pull the vehic\
le up onto a flat bed tow truck.
pg. 102 Starting and driving
Towing (contd)
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2006 VOLVO XC90
WARNING!
- Do not connect the jumper cable to any part of the fuel system or to a\
ny moving parts. Avoid
touching hot manifolds.
Never expose the battery to open flame or electric spark.
- Do not smoke near the battery.
- Batteries generate hydrogen gas, which is flammable and explosive.
- Battery fluid contains sulphuric acid. Do not allow battery fluid to c\
ontact eyes, skin, fabrics or
painted surfaces. If contact occurs, flush the affected area immediately\
with water. Obtain medical
help immediately if eyes are affected.
- Failure to follow the instructions for jump starting can lead to perso\
nal injury.
pg. 104 Starting and driving
Towing a trailer
The maximum weights recommended by Volvo for trailers with brakes are sh\
own in the table below.
No. of
occupants 1
2 3 4 5 6 7
Seating
position Front
seat Front
seat 2nd row
of seats2nd row
of seats2nd row
of seatsOptional 3rd
row of seats Optional 3rd row of
seats
All Wheel
Drive 5,000
lbs
(2250
kg)5,000
lbs
(2250
kg)4,500
lbs
(2050
kg)3,700
lbs
(1700
kg)2,900
lbs
(1350
kg)
1,800 lbs
(800 kg)
Trailer towing not
recommended
Max. trailer
hitch tongue
load 500 lbs
(225 kg)
500 lbs
(225 kg)450 lbs
(205 kg)370 lbs
(170 kg)290 lbs
(135 kg)180 lbs (80
kg)
-
Front Wheel
Drive 4,000
lbs
(1800
kg)4,000
lbs
(1800
kg)4,000
lbs
(1800
kg)4,000
lbs
(1800
kg)3,700
lbs
(1650
kg)
2,500 lbs
(1150 kg)
1,400 lbs (650 kg)
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2006 VOLVO XC90
Max. trailer
hitch tongue
load400 lbs
(180 kg)
400 lbs
(180 kg)400 lbs
(180 kg)400 lbs
(180 kg)370 lbs
(165 kg)250 lbs (115
kg)
140 lbs (65 kg)
NOTE:
l Recommended hitch tongue load: not more than 10% of the trailer's weight\
.
The trailer load should be positioned so that it does not shift and the \
tongue load should be 10% of the
trailer's weight. However, the tongue load should not exceed the maximum\
permissible weights
indicated in the table above.
l When towing trailers without brakes, the maximum permissible trailer wei\
ght is 1,700 lbs (750 kg).
l If necessary, redistribute the weight of any cargo in the trailer to avo\
id excessive weight on the trailer
hitch.
l The maximum trailer weight listed in the table for All Wheel Drive model\
s, 5,000 lbs (2250 kg) is
only applicable when there are not more than two occupants in the vehicl\
e, in the front seats, with a
combined weight of 300 lbs (135 kg), with no other cargo in the vehicl\
e.
pg. 105 Starting and driving
Towing a trailer (contd)
l The maximum weight listed for Front Wheel Drive models, 4,000 lbs (1800\
kg) is only applicable
when there are not more than four occupants in the vehicle, in the front\
seats and second row of seats,
with a combined weight of 600 lbs (270 kg), with no other cargo in the\
vehicle.
l Please be aware that the load on the trailer hitch is part of the vehicl\
e's total load carrying capacity.
The amount of cargo in the vehicle and the trailer must be limited so th\
at the gross vehicle weight and
maximum permissible rear axle weight
(see page 173) are not exceeded.
l Vehicles used for towing a trailer on a regular basis, or for long-dista\
nce highway towing should be
equipped with an automatic transmission oil cooler and Volvo's automatic\
self-leveling system for the
rear suspension. Consult your Volvo retailer.
l Volvo recommends the use of Volvo trailer hitches that are specially des\
igned for the vehicle.
l All Volvo models are equipped with energy-absorbing shock-mounted bumper\
s. Trailer hitch
installation should not interfere with the proper operation of this bump\
er system.
l Increase tire pressure to recommended full inflation pressure. See chapt\
er "Wheels and tires."
l When your vehicle is new, avoid towing heavy trailers during the first 6\
20 miles (1,000 km).
l Engine and transmission are subject to increased loads. Therefore, engin\
e coolant temperature should
be closely watched when driving in hot climates or hilly terrain. Use a \
lower gear and turn off the air
conditioner if the temperature gauge needle enters the red range.
l If the automatic transmission begins to overheat, a message will be disp\
layed in the text window.
l Hauling a trailer affects handling, durability, and economy.
l It is necessary to balance trailer brakes with the towing vehicle brakes\
to provide a safe stop (check
and observe state/local regulations).
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2006 VOLVO XC90
l Do not connect the trailer's brake system directly to the vehicle's brak\
e system.
l Remove the ball and drawbar assembly when the hitch is not being used.
l Volvo recommends the use of synthetic engine oil when towing a trailer o\
ver long distances or in
mountainous areas.
WARNING!
- Bumper-attached trailer hitches must not be used on Volvos, nor should\
safety chains be attached to
the bumper.
Trailer hitches attaching to the vehicle rear axle must not be used.
- Never connect a trailer's hydraulic brake system directly to the vehic\
le brake system, nor a trailer's
lighting system directly to the vehicle lighting system. Consult your ne\
arest authorized Volvo retailer
for correct installation.
- When towing a trailer, the trailer's safety wire must be correctly fas\
tened to the hole or hook
provided in the trailer hitch on the vehicle. The safety wire should nev\
er be fastened to or wound
around the drawbar ball.
NOTE!
- When parking the vehicle with a trailer on a hill, apply the parking b\
rake before putting the gear
selector in (P)ark. When starting on a hill, put the gear selector in \
(D)rive before releasing the parking
brake. Always follow the trailer manufacturer's recommendations for whee\
l chocking.
- If you use the manual (Geartronic) shift positions while towing a tr\
ailer, make sure the gear you select
does not put too much strain on the engine (using too high a gear).
pg. 106 Starting and driving
Smoother starts with a trailer Models equipped with the V8-engine and the 6-speed automatic
transmission have a built-in function that reduces acceleration slightly\
in first gear when the vehicle is
towing a trailer. This is done to help avoid wheel spin and to make star\
ting off smoother.
l This function is activated when the trailer's electrical connector is pl\
ugged into the electrical socket
mounted near the trailer hitch.
l The function is automatically deactivated when the trailer's wiring is d\
isconnected from the socket.
The vehicle will then accelerate normally.
NOTE: Since this function is activated when a connector is plugged into the e\
lectrical socket near the
trailer hitch, it will be activated by any electrical equipment (e.g. b\
icycle racks with lighting, etc) that is
plugged in, and will remain active until the equipment is unplugged from\
the socket.
Leveling
If your vehicle is equipped with automatic levelling, the rear suspensio\
n always retains the correct ride
height regardless of the load.
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