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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 128 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.
pg. 97 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,
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
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improve tractive force. Under certain circumstances, such as when drivin\
g with snow chains, or driving
in deep snow or loose sand, it may be advisable to temporarily switch of\
f this function for maximum
tractive force. This is done by pressing the DSTC button on the center c\
ontrol panel for at least 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.
pg. 98 Starting and driving
Dynamic Stability Traction Control (DSTC) (contd)
The DSTC button
The DSTC button in the center control panel is used to switch the Spin C\
ontrol (SC) function on or off.
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.
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All DSTC functions are (re)activated each time the engine is started.
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" be displayed in the text window. An authorized 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 ag\
ain when the brakes have
cooled.
Emergency Brake Assistance (EBA)
The EBA function is an integrated part of the DSTC system. EBA is design\
ed to provide full brake
effect immediately in the event of sudden, hard braking. The system is a\
ctivated 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. Maintain full pressure on th\
e brake pedal in order to utilize
the system completely. EBA is automatically deactivated when the brake p\
edal 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. 99 Starting and driving
Rear Parking Assistance
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Rear Parking Assistance (option) is used to assist you when backing in\
to parking spaces, etc by
providing an audible tone as you back up. The system is automatically ac\
tivated when you select reverse
gear.
It utilizes ultrasound sensors located in the rear bumper to measure the\
distance to a vehicle or other
object, or a person who may be behind the vehicle.
When the system is active:
1. The audio system's volume will be reduced.
2. An intermittent signal will be audible from the audio system's speake\
rs to indicate that as you back
up, you are approaching a person, object, parked vehicle, etc. The signa\
ls begin when the vehicle is at a
distance of approximately 5 feet (1.5 meters) from an object/person, e\
tc.
3. At a distance of approximately 1 foot (30 cm), the signal will beco\
me constant.
Switching off the system
Towing a trailer, carrying bicycles in a tailgate-mounted carrier, etc, \
could trigger the reverse warning
system.
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To temporarily off the system
l Press the button in the center control panel (see illustration above).\
The LED in the button will go out
to indicate that the system is not in active mode.
l Press the button again to reactivate the system.
Faults in the system
If a fault should occur in the system, the LED in the button will be swi\
tched off and a message will be
displayed in the text window.
Cleaning the sensors
For the system to function properly, the sensors should be kept clean. T\
hey can be cleaned with car
washing detergent and a sponge.
WARNING!
This system is designed to be a supplementary aid when the vehicle is ba\
cking up. It is not, however,
intended to replace the driver's attention and judgement.
pg. 100 Starting and driving
Towing
Positions for attaching towing eyelets
Emergency towing
The towing eyelet is located in the tool bag, under the floor of the car\
go area. This eyelet must be
screwed into the positions provided on the right sides of either the fro\
nt or rear bumper (see illustrations).
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
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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 102).
- 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. 101 Starting and driving
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Towing vehicles with front wheel drive/All Wheel Drive
Volvo recommends the use of flat bed equipment.
If wheel lift equipment must be used, please use extreme caution to help\
avoid damage to the vehicle. In
this case, the vehicle should be towed with the rear wheels on the groun\
d if at all possible.
If it is absolutely necessary to tow the vehicle with the front wheels o\
n the ground, please refer to the
towing information on the previous page. CAUTION
Sling-type equipment applied at the front will damage radiator and air c\
onditioning lines.
It is equally important not to use sling-type equipment at the rear or a\
pply lifting equipment inside the
rear wheels; serious damage to the rear axle may result.
If the vehicle is being towed on a flat bed truck, the towing eyelets mu\
st not be used to secure the
vehicle on the flat bed. Consult the tow truck operator.
WARNING!
Do not use the towing eyelets to pull the vehicle up onto a flat bed tow\
truck.
pg. 102 Starting and driving
Jump starting
Jump starting
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Follow these instructions to jump start your vehicle's dead battery or t\
o jump start another vehicle's dead
battery using your vehicle. Although your vehicle's battery is located u\
nder the floor of the cargo area,
jumper cables should be connected in the engine compartment, to the points shown in the illustrations.
If the 12-volt auxiliary battery to be used is in another vehicle, check\
that the vehicles are not touching
to prevent premature completion of a circuit. Be sure to follow jump sta\
rting instructions provided for
the other vehicle.
To jump start your vehicle:
l Switch off the ignition.
l First connect the auxiliary battery positive (+) terminal (1) to the\
positive (+) terminal in your
vehicle's engine compartment (2), located under a small black plastic \
cover attached to the fuse box
cover, marked with a "+" sign. Remove the cover on the main fuse box if \
necessary to access this
terminal.Then connect the auxiliary battery's negative (-) terminal (\
3) to the ground point in your
vehicle's engine compartment (4).
l Start the engine in the assisting vehicle, then start the engine in the \
vehicle with dead battery.
l After the engine has started, first remove the negative (-) terminal j\
umper cable. Then remove the
positive (+) terminal jumper cable.
WARNING!
PROPOSITION 65 WARNING!
Battery posts, terminals, and related accessories contain lead and lead \
compounds, chemicals known
to the state of California to cause cancer and reproductive harm. Wash h\
ands after handling
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.
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