check engine VOLVO XC90 2006 User Guide

2006 VOLVO XC90
Autostart (V8 AWD only)
This function makes it possible to start the vehicle without holding the\
key in the start position (position
III) until the engine starts. Turn the key to position III and release \
it. The starter motor will then operate
automatically (for up to ten seconds) until the engine starts.
Steering wheel lock
The steering wheel lock might be under tension when the vehicle is parke\
d.
Turn the steering wheel slightly to free the ignition key.
In order to help reduce vehicle theft, make sure the steering wheel lock\
is engaged before leaving
the vehicle.
WARNING!
Never switch off the ignition (turn the ignition key to position 0) or\
remove the key from the ignition
switch while the vehicle is in motion. This could cause the steering whe\
el to lock, which would make
the vehicle impossible to steer.
* The gear selector must be in the (P)ark position (automatic transmission).
** Please be aware that leaving the key in this position will increase b\
attery drain.
pg. 91 Starting and driving
General information
Economical driving conserves natural resources
Better driving economy may be obtained by thinking ahead, avoiding rapid\
starts and stops and
adjusting the speed of your vehicle to immediate traffic conditions. Obs\
erve the following rules:
l Bring the engine to normal operating temperature as soon as possible by \
driving with a light foot on
the accelerator pedal for the first few minutes of operation. A cold eng\
ine uses more fuel and is subject
to increased wear.
l Whenever possible, avoid using the vehicle for driving short distances. \
This does not allow the engine
to reach normal operating temperature.
l Drive carefully and avoid rapid acceleration and hard braking.
l Use the transmission's (D)rive position as often as possible and avoid using "kickdown" to help
improve fuel economy.
l Do not exceed posted speed limits.
l Avoid carrying unnecessary items (extra load) in the vehicle.
l Maintain correct tire pressure. Check tire pressure regularly (when tir\
es are cold).
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2006 VOLVO XC90
l Remove snow tires when threat of snow or ice has ended.
l Note that roof racks, ski racks, etc, increase air resistance and also f\
uel consumption.
l At highway driving speeds, fuel consumption will be lower with the air c\
onditioning on and the
windows closed than with the air conditioning off and the windows open. \
l Using the onboard trip computer's fuel consumption modes can help you le\
arn how to drive more
economically.
Other factors that decrease gas mileage are:
l Dirty air cleaner
l Dirty engine oil and clogged oil filter
l Dragging brakes
l Incorrect front end alignment
Some of the above mentioned items and others are checked at the standard\
Maintenance intervals.
Weight distribution affects handling
At 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 curvatur\
e of a bend. This ensures good
stability and reduces the risk of rear wheel skid. Remember that these p\
roperties can alter with the
vehicle load. The heavier the load in the cargo area, the less the tende\
ncy to understeer.
WARNING!
Driving with the tailgate open: Driving with the tailgate open could lead to poisonous exhaust gases
entering the passenger compartment. If the tailgate must be kept open fo\
r any reason, proceed as
follows
- Close the windows
- Set the ventilation system control to air flow to floor, windshield an\
d side windows and blower
control to its highest setting.
CAUTION
Drive slowly and carefully if going through standing water (i.e. floode\
d roadways, etc.). Damage to
the engine could result if excess water is drawn in through the air inta\
ke system. Never drive the
vehicle in water deeper than 18 inches (48 cm).
pg. 92 Starting and driving
General information (contd)
Handling, roadholding
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2006 VOLVO XC90
Vehicle load, tire design and inflation pressure all affect vehicle hand\
ling. Therefore, check that the tires
are inflated to the recommended pressure according to the vehicle load. \
See "Tire pressure" section.
Loads should be distributed so that capacity weight or maximum permissib\
le axle loads are not exceeded.
Driving on rough/unpaved surfaces
The Volvo XC90 is designed primarily for onroad driving, and it has exce\
llent handling characteristics
on very rough or unpaved roads.
When driving on poorly maintained or unpaved roads, please keep the foll\
owing in mind:
l Reduce speed on rough surfaces to minimize possible damage to the vehicl\
e's underbody.
l When driving on soft surfaces such as dry sand or snow, try to avoid sto\
pping if at all possible.
WARNING!
Avoid driving diagonally across steep inclines as this could increase th\
e risk of a roll-over. Try to
drive straight up or down the slope.
If the road is very steep, avoid turning the vehicle around to help avoi\
d the risk of rolling over. Back
the vehicle up or down the incline instead.
NOTE: Avoid driving on steep inclines if the fuel tank is nearly empty. If the\
flow of fuel to the engine
is interrupted due to the vehicle's angle of inclination, this could res\
ult in damage to the three-way
catalytic converter. We recommend keeping the fuel tank at least half fu\
ll when driving on steep inclines.
Driving through water
l The vehicle should not be driven through water that is deeper than 18 in\
ches (48 cm). Driving through
deeper water could result in damage to transmission components or the di\
fferential, or to the engine if
excess water is drawn in through the air intake system.
l Drive slowly and avoid stopping when driving through water.
l After having driven through water, apply the brakes lightly several time\
s to remove water, mud, etc
from the brake discs.
l Never allow the vehicle to stand in water above the door sills. This cou\
ld result in damage to the
electrical system.
Conserving electrical current
Keep the following in mind to help minimize battery drain:
l When the engine is not running, avoid turning the ignition key to positi\
on II (see page 90). Many
electrical systems (the audio system, the optional infotainment/navigat\
ion systems, power windows, etc)
will function with the ignition key in position I. This position reduces\
drain on the battery.
l 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 drain\
ed.
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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 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
Jump starting
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 under 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 termin\
al. Then connect the auxiliary
battery's negative (- ) terminal (3) to the ground point in your veh\
icle'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
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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
WARNING!
Loads carried on the vehicle's roof should not exceed 220 lbs (100 kg)\
, including the weight of the
load carriers and any other load carrying equipment (ski boxes, bicycle\
racks, etc.). Excessive loads
on the roof can adversely affect the handling and roadholding characteri\
stics of the vehicle.
Load carrier cover
The vehicle's ignition key or the stud on the edge of the supplied torqu\
e wrench can be used to undo or
tighten the cover. Turn a quarter turn (90 degrees). See illustration.\

pg. 108 Starting and driving
Cold weather precautions
If you wish to check your vehicle before the approach of cold weather, t\
he following advice is worth
noting:
l Make sure that the engine coolant contains 50 percent antifreeze. Any ot\
her mixture will reduce
freeze protection. This gives protection against freezing down to -31°\
F (-35°C). See section "Coolant".
The use of "recycled" antifreeze is not approved by Volvo. Different typ\
es of antifreeze must not
be mixed.
l Volvo recommends using only genuine Volvo antifreeze in your vehicle's r\
adiator. Your Volvo
retailer stocks plenty of Volvo engine coolant to help protect your vehi\
cle during cold weather.
l Try to keep the fuel tank well filled - this prevents the formation of condensation in the tank. \
In
addition, in extremely cold weather conditions it is worthwhile to add f\
uel line de-icer before refueling.
l The viscosity of the engine oil is important. Oil with low viscosity (thinner oil) improves cold-
weather starting as well as decreasing fuel consumption while the engine\
is warming up. For winter use,
5W-30 oil, particularly the synthetic type*, is recommended. Be sure to \
use good quality oil but do not
use cold-weather oil for hard driving or in warm weather. See section "E\
ngine oil" for more information.
l The load placed on the battery is greater during the winter since the windshield wipers, lighting, etc\
.
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