check engine VOLVO XC90 2009 Owner´s Manual

06 Starting and drivingFuel requirements
06130
WARNING
Driving with the tailgate open: Driving with
the tailgate open could lead to poisonous
exhaust gases entering the passenger com-
partment.•
If the tailgate must be kept open for any
reason, proceed as follows:
•
Close the windows
•
Set the ventilation system control to air
flow to floor, windshield and side win-
dows and blower control to its highest
setting.
Weight distribution affects handlingAt the specified curb weight your vehicle has a
tendency to understeer, which means that the
steering wheel has to be turned more than
might seem appropriate for the curvature of a
bend.
This ensures good stability and reduces the
risk of rear wheel skid. Remember that these
properties can alter with the vehicle load.
The heavier the load in the cargo area, the less
the tendency to understeer.Handling, roadholdingVehicle load, tire design and inflation pressure
all affect vehicle handling. Therefore, check
that the tires are inflated to the recommendedpressure according to the vehicle load. See
"Tire pressure" section.
Loads should be distributed so that capacity
weight or maximum permissible axle loads are
not exceeded.
Conserving electrical currentKeep the following in mind to help minimize
battery drain:•
When the engine is not running, avoid turn-
ing the ignition key to position II (see
page 135). Many electrical systems (the
audio system, the optional infotainment/
navigation systems, power windows, etc)
will function with the ignition key in position
I. This position reduces drain on the bat-
tery.
•
Please keep in mind that using systems,
accessories, etc that consume a great deal
of current when the engine is not running
could result in the battery being completely
drained.NOTE
A warning message will be displayed in the
text window in the instrument panel when
the battery charge is low.

06 Starting and drivingRefueling
06132
CAUTION
•
Do not refuel with the engine running
1.
Turn the ignition off or to position I. If the
ignition is on, an incorrect reading could
occur in the fuel gauge.
•
After refueling, close the fuel filler cap
by turning it clockwise until it clicks into
place
1.
•
Avoid overfilling the fuel tank. Do not
press the handle on the filler nozzle
more than one extra time. Too much
fuel in the tank in hot weather conditions
can cause the fuel to overflow. Overfill-
ing could also cause damage to the
emission control systems.
•
Avoid spilling gasoline during refueling.
In addition to causing damage to the
environment, gasolines containing
alcohol can cause damage to painted
surfaces, which may not be covered
under the New Vehicle Limited War-
ranty.
•
Do not use gasolines containing meth-
anol (methyl alcohol, wood alcohol).
This practice can result in vehicle per-
formance deterioration and can dam-
age critical parts in the fuel system.
Such damage may not be covered
under the New Vehicle Limited War-
ranty.
1If the fuel filler cap is not closed tightly or if the engine is running when the vehicle is refueled, the Check Engine Light (malfunction indicator lamp) may indicate a fault. However, your vehicle's
performance will not be affected. Use only Volvo original or approved fuel filler caps.

06 Starting and driving
Starting the vehicle
06``133 Starting the engine
WARNING
Before starting, check that the seat, steering
wheel and mirrors are adjusted properly.
Make sure the brake pedal can be
depressed completely. Adjust the seat if
necessary, see page 100.1. Fasten the seat belt.
2. Apply the parking brake (hand brake) if not
already set. The gear selector is locked in
theP position (SHIFTLOCK).
3. Without touching the accelerator pedal,
turn the ignition key
1 to the starting posi-
tion. Allow the starter to operate for up to
10 seconds. Release the key as soon as
the engine starts
2. If the engine fails to
start, repeat this step.
NOTE
•
If the key blade section of the remote is
not fully folded out when starting the
vehicle, the immobilizer function may
make it impossible to start the engine.
•
After a cold start, idle speed may be
noticeably higher than normal for a
short period. This is done to help bring
components in the emission control
system to their normal operating tem-
perature as quickly as possible, which
enables them to control emissions and
help reduce the vehicle's impact on the
environment.
•
To release the gear selector from the P
(Park) position, the engine must be run-
ning (or the ignition key must be in posi-
tionII) and the brake pedal must be
depressed.
•
Select the desired gear. The gear
engages after a very slight delay which
is especially noticeable when selecting
R.
NOTE
Your vehicle is equipped with a KEYLOCK
system. When the engine is switched off,
the gear selector must be in the P position
before the key can be removed from the
ignition switch.
When starting in cold weather, the trans-
mission may shift up at slightly higher
engine speeds than normal until the auto-
matic transmission fluid reaches normal
operating temperature.
NOTE
Do not race a cold engine immediately after
starting. Oil flow may not reach some lubri-
cation points fast enough to prevent engine
damage.
WARNING
An extra mat on the driver's floor can cause
the accelerator pedal to catch. Check that
the movement of the accelerator pedal is
not impeded. No more than one protective
floor covering may be used at one time.
1If two of the keys to your vehicle are close together, e.g. on the same key ring when you try to start the vehicle, this could cause interference in the immobilizer system and result in the vehicle not
starting. If this should occur, remove one of the keys from the key ring before trying to start the vehicle again.2On vehicles equipped with the autostart feature, release the key immediately. See also page 135.

06 Starting and drivingEconomical driving
06136
Economical driving conserves natural
resourcesBetter driving economy may be obtained by
thinking ahead, avoiding rapid starts and stops
and adjusting the speed of your vehicle to
immediate traffic conditions. Observe the fol-
lowing rules:•
Bring the engine to normal operating tem-
perature as soon as possible by driving
with a light foot on the accelerator pedal for
the first few minutes of operation. A cold
engine uses more fuel and is subject to
increased wear.
•
Whenever possible, avoid using the vehicle
for driving short distances. This does not
allow the engine to reach normal operating
temperature.
•
Drive carefully and avoid rapid acceleration
and hard braking.
•
Use the transmission's D (Drive) position
as often as possible and avoid using "kick-
down" to help improve fuel economy.
•
Do not exceed posted speed limits.
•
Avoid carrying unnecessary items (extra
load) in the vehicle.
•
Maintain correct tire pressure. Check tire
pressure regularly (when tires are cold).
•
Remove snow tires when threat of snow or
ice has ended.
•
Note that roof racks, ski racks, etc,
increase air resistance and also fuel con-
sumption.
•
At highway driving speeds, fuel consump-
tion will be lower with the air conditioning
on and the windows closed than with the
air conditioning off and the windows open.
•
Using the onboard trip computer's fuel
consumption modes can help you learn
how to drive more economically.
Other factors that decrease gas mileage
are:
•
Dirty air cleaner
•
Dirty engine oil and clogged oil filter
•
Dragging brakes
•
Incorrect front end alignment.
Some of the above mentioned items and others
are checked at the standard Maintenance
Service intervals.CAUTION
Drive slowly and carefully if going through
standing water (i.e. flooded roadways, etc.).
Damage to the engine could result if excess
water is drawn in through the air intake sys-
tem. Never drive the vehicle in water deeper
than 18 inches (48 cm).

06 Starting and driving
Jump starting
06
141
G030860
Follow these instructions to jump start your
vehicle's dead battery or to jump start another
vehicle's dead battery using your vehicle.
Although your vehicle's battery is located
under the floor of the cargo area, jumper cables
should be connected in the engine compart-
ment, 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 starting instruc-
tions provided for the other vehicle.To jump start your vehicle:1. Switch off the ignition.2. 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 bat-
tery's negative (–) terminal (3) to the ground
point in your vehicle's engine compartment
(4).
3. Start the engine in the assisting vehicle,
then start the engine in the vehicle with
dead battery.
4. After the engine has started, first remove
the negative (–) terminal jumper cable.
Then remove the positive (+) terminal
jumper cable.
WARNING
PROPOSITION 65 WARNING!
Battery posts, terminals, and related acces-
sories contain lead and lead compounds,
chemicals known to the state of California
to cause cancer and reproductive harm.
Wash hands after handling.
WARNING
•
Do not connect the jumper cable to any
part of the fuel system or to any 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 sulfuric acid. Do
not allow battery fluid to contact eyes,
skin, fabrics or painted surfaces. If con-
tact 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 personal
injury.

06 Starting and driving
Brake system
06``143 BRAKE Brake circuit malfunction
The brake system is a hydraulic system con-
sisting of two master cylinders and two sepa-
rate brake circuits. If a problem should occur in
one of these circuits, it is still possible to stop
the vehicle with the other brake circuit.
If the brake pedal must be depressed farther
than normal and requires greater 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 check the brake fluid
level in the reservoir.
NOTE
Press the brake pedal hard and maintain
pressure on the pedal – do not pump 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 trained and qualified Volvo serv-
ice technician 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 function of
the power-assisted brake system.Power brakes function only when the
engine is runningThe power brakes utilize vacuum pressure
which is only created when the engine is run-
ning. 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 approximately 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 roll-
ing. The brake pedal feels harder than usual.Water on brake discs and brake pads
affects brakingDriving in rain and slush or passing through an
automatic car wash can cause 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 occa-
sionally 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 weather.
Severe strain on the brake systemThe 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 of the
brakes is less efficient than when driving on
level roads. To reduce the strain on the brakes,
shift into a lower gear and let the engine help
with the braking. Do not forget that, if you are
towing a trailer, the brakes will be subjected to
a greater than normal load.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
trained and qualified Volvo service technician
for inspection. The Anti-lock Braking System
(ABS) helps to improve vehicle control (stop-
ping and steering) during severe braking con-
ditions by limiting brake lockup. When the
system "senses" impending lockup, braking
pressure is automatically modulated in order to
help prevent lockup, which could lead to a skid.
The system performs a self-diagnostic test
when the engine is started and when the

06 Starting and drivingBrake system
06144
vehicle first reaches a speed of approxi-
mately 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 be kept on the brake
pedal. Do not pump the brake pedal.
The switching of the ABS modulator will be
audible and the brake pedal will pulsate during
braking. Please be aware that ABS does not
increase the absolute braking potential of the
vehicle. While control will be enhanced, ABS
will not shorten stopping distances on slippery
surfaces.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 during
braking, which is normal.
If the BRAKE and ABS warning lights come on
at the same time, this could indicate a fault in
the brake system.
1. Stop the vehicle in a suitable place and
switch off the engine.
2. Restart the engine.
•
If both warning lights go off, no further
action is required.
•
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 212 for the location of the brake fluid
reservoir).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 trained and qualified Volvo serv-
ice technician and have the brake system
inspected.
•
If the brake fluid level is above the MIN
mark, drive carefully to a trained and quali-
fied Volvo service technician and have the
brake system inspected.
Emergency Brake Assistance (EBA)The EBA function is designed to provide full
brake effect immediately in the event of sud-
den, hard braking. The system is activated by
the speed with which you depress the brake
pedal.
NOTE
•
When the EBA system is activated, the
brake pedal will go down and pressure
in the brake system immediately increa-
ses to the maximum level. You must
maintain full pressure on the brake
pedal in order to utilize the system com-
pletely. There will be no braking effect if
the pedal is released. EBA is automati-
cally deactivated when the brake pedal
is released.
•
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.

06 Starting and drivingStability system
06146
DSTC-related messages in the text
window•
TRACTION CONTROL TEMPORARILY
OFF
– The system has been temporarily
switched off due to high brake temperature
and will automatically switch on again
when the brakes have cooled.
•
"ANTI SKID SERVICE REQUIRED
" – the
system has been automatically disen-
gaged due to a fault. A trained and qualified
Volvo service technician should check the
system.
Symbols in the instrument panelThe Stability Control indicator light
This light indicates different condi-
tions, depending on how it illumi-
nates.
The Stability Control indicator light
illuminates for approximately 2 secondsThis indicates that the system is performing a
self-diagnostic test when the ignition is
switched on.The Stability Control indicator light
flashesThis indicates that the stability system is
actively functioning to help counteract wheel
spin and/or a skid.
The Stability Control indicator light
glows steadilyANTI SKID SERVICE REQUIRED
will be dis-
played in the text window at the same time.
A fault is indicated in the stability system.
•
Stop the vehicle in a safe place and switch
off the engine.
•
Restart the engine.
•
If the indicator light goes out, the fault was
temporary and no further action is
required.
•
If the indicator light remains on, drive to an
authorized Volvo workshop as soon as
possible to have the system checked.
The Stability Control indicator light
glows steadilyIfDSTC SPIN CONTROL OFF
is displayed in
the text window at the same time, this is a
reminder that spin control has been disabled
by the driver.
The warning symbol
The warning symbol glows
steadily yellow
The system has been temporarily switched off
due to high brake temperature. "
TRACTIONCONTROL TEMPORARILY OFF
" will be dis-
played. The system will automatically switch
on again when the brakes have cooled.
WARNING
The stability system is intended to help
improve driving safety. It supplements, but
can never replace, the driver's judgement
and responsibility when operating the vehi-
cle. Speed and driving style should always
be adapted to traffic and road conditions.

06 Starting and drivingTowing
06150
CAUTION
Vehicles with AWD (All Wheel Drive) with the
front wheels off the ground should not be
towed at speeds about 50 mph (70 km/h) or
for distances longer than 30 miles (50 km).
CAUTION
•
Please check with state and local
authorities before attempting this type
of towing, as vehicles being towed are
subject to regulations regarding maxi-
mum 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 started using an
auxiliary battery (see page 141).
•
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 when
engine is not running. The braking and
steering systems will function but the
brake pedal pressure required is
3 – 4 times above normal and greater
steering effort must be exerted.
•
The towing eyelets must not be used for
pulling another vehicle out of a ditch or
for any similar purpose involving severe
strain.
•
Do not use the towing eyelets to pull the
vehicle up onto a flat bed tow truck.
G030862
Towing vehicles with front wheel drive/
All Wheel DriveVolvo recommends the use of flat bed equip-
ment.
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 ground
if at all possible.
If it is absolutely necessary to tow the vehicle
with the front wheels on 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 con-
ditioning lines.
•
It is equally important not to use sling-
type equipment at the rear or apply lift-
ing 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 must not be
used to secure the vehicle on the flat
bed. Consult the tow truck operator.

06 Starting and driving
Towing a trailer
06``153
NOTE
•
If the automatic transmission begins to
overheat, a message will be displayed
in the text window.
•
Hauling a trailer affects handling, dura-
bility, and economy.
•
It is necessary to balance trailer brakes
with the towing vehicle brakes to pro-
vide a safe stop (check and observe
state/local regulations).
•
Do not connect the trailer's brake sys-
tem directly to the vehicle's brake sys-
tem.
•
Remove the ball and drawbar assembly
when the hitch is not being used.
•
Volvo recommends the use of synthetic
engine oil when towing a trailer over
long distances or in mountainous areas.
NOTE
•
When parking the vehicle with a trailer
on a hill, apply the parking brake before
putting the gear selector in P. When
starting on a hill, put the gear selector in
D before releasing the parking brake.
Always follow the trailer manufacturer's
recommendations for wheel chocking.
•
If you use the manual (Geartronic) shift
positions while towing a trailer, make
sure the gear you select does not put
too much strain on the engine (using too
high a gear).
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 vehicle
brake system, nor a trailer's lighting
system directly to the vehicle lighting
system. Consult a trained and qualified
Volvo service technician for correct
installation.
•
When towing a trailer, the trailer's safety
wire must be correctly fastened to the
hole or hook provided in the trailer hitch
on the vehicle. The safety wire should
never be fastened to or wound around
the drawbar ball.
Smoother starts with a trailerModels 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 starting off smoother.•
This function is activated when the trailer's
electrical connector is plugged into the