2010 VOLVO S40 ECU

04 Interior
Rear seat
04
116
NOTE
When the seat backs are folded down, the
head restraints may be damaged if they are
not removed. The center head restraint
must also be removed when transporting
heavy loads.
G014845
Rear edge of seat cushion
Catch
Folding down the backrest
Location of the head restraint in the seat
cushion
To fold down one or both sections:1. Grasp the rear edge of the seat cushion
and pull it forward.
2. Pull the catch on the upper outboard edge
of the backrest upward and forward to
release the backrest lock. A red lock indi-
cator is visible when the backrest is not
locked in the upright position.
3. Fold the backrest down partially and
remove the outboard head restraints.
Press the center head restraint down com-
pletely or remove it.
4. Place the head restraints in the plastic
tubes, which are now accessible on the
under side of the seat cushions.
WARNING
The center rear seat head restraint should
only be in its lowest position when this seat
is NOT occupied. When the center position
is occupied, the head restraint should be
correctly adjusted to the passenger’s
height. The upper edge of the head restraint
should be at least on a level with the upper-
most point of the seat occupant's ear.
NOTE
When folding down the rear seat backrests,
remove the plug in the rear 12-volt socket to
help avoid marks in the upholstery.
WARNING
•The red lock indicator is VISIBLE when
the backrest is NOT locked in position
and hidden when the backrest is cor-
rectly locked in place. When the back-
rest is in the upright position, it must
always be correctly locked in place.
•When the rear seat is folded down, do
not place heavy objects against the
backs of the front seats. This places a
severe strain on the folded down back-
rest of the rear seat. Be sure to secure
cargo.
•Cargo must not be stacked higher than
the top of seat backs. This will reduce
the possibility of luggage, etc. becom-
ing projectiles during sudden maneu-
vers, rapid braking or an accident.

05 Locks and alarm
Remote key and key blade
05

121
Unlock – Press the Unlock button on the
remote once to unlock the driver's door.
After a short pause, press the Unlock but-
ton a second time within 10 seconds to
unlock the other doors and the trunk. A
long press (at least several seconds) opens
all side windows.
NOTE
•The turn signals flash to confirm that the
vehicle has been correctly locked/
unlocked with the remote key or the
optional keyless drive. When locking the
vehicle, the turn signals will flash a con-
firmation only if all the doors are
securely closed and locked. Flashing
confirmation for locking and unlocking
may be customized in the vehicle's Per-
sonal settings menu, see page 83 for
more information.
•The two-step unlocking function can be
changed so that one press of the
Unlock button unlocks all of the doors
and the trunk. See Personal settings
page 83 for more information.
•Automatic relocking: If the doors are
unlocked, the locks will automatically reen-
gage (re-lock) and the alarm will rearm after2 minutes unless a door or the trunk has
been opened.
•Automatic locking: When the car starts to
move, the doors and trunk can be locked
automatically. This feature can be turned
on or off, see Personal settings on page
83 for more information.
•Airbag deployment will automatically
attempt to unlock the doors.
Approach lighting – As you approach the
car: Press the button on the remote key to
illuminate the area around the car in dark
conditions. Pressing the button once lights
up the interior lighting, parking lights, and
license plate lighting. These lights will
switch off automatically after 30, 60 or
90 seconds. See the Personal settings pa
ge 83 for information about adjusting the
time setting.
Unlock trunk – Press the button once to
disarm the alarm system and unlock only
the trunk. After closing, the trunk will not
automatically relock. Press Lock to relock
it and rearm the alarm.
NOTE
This function will unlock, but not pop open,
the trunk.
Panic alarm – This button can be used to
attract attention during emergency situa-
tions. To activate the panic alarm, press
and hold the red button for at least 3 sec-
onds or press it twice within 3 seconds.
The turn signals and horn will be activated.
The panic alarm will stop automatically
after 30 seconds. To deactivate, wait
approximately 5 seconds and press the red
button again.
NOTE
This button will NOT unlock the car.
Weak battery in the remote key
G019406

06 Starting and driving
Starting the vehicle
06
147
WARNING
Volvo's floor mats are specially manufac-
tured for your car. They must be firmly
secured in the clips on the floor so that they
cannot slide and become trapped under the
pedals on the driver's side.
•Always place the gear selector in Park
(P) (manual transmission: first or reverse
gear) and apply the parking brake
before leaving the vehicle.and apply the
parking brake before leaving the vehi-
cle. Never leave the vehicle unattended
with the engine running.
•Always open garage doors fully before
starting the engine inside a garage to
ensure adequate ventilation. The
exhaust gases contain carbon monox-
ide, which is invisible and odorless but
very poisonous.
CAUTION
Automatic transmission: The engine
should be idling when you move the gear
selector. Never accelerate until after you
feel the transmission engage! Accelerating
immediately after selecting a gear will cause
harsh engagement and premature trans-
mission wear. Selecting P or N when idling
at a standstill for prolonged periods of time
will help prevent overheating of the auto-
matic transmission fluid.

06 Starting and driving
Towing
06

159 Emergency towing
G030710
The towing eyelet is located under the floor of
the trunk. This eyelet must be screwed into the
positions provided on the right sides of either
the front or rear bumper (see the illustration).
To attach the towing eyelet:1. Press the mark on the lower edge of the
cover (1) to open it.
2. Screw the towing eyelet (3) in place first by
hand and then using the tire iron until it is
securely in place.

After the vehicle has been towed, the eye-
let should be removed and returned to its
storage space.
Press the cover back into position.
WARNING
Do not use the towing eyelets to pull the
vehicle up onto a flat bed tow truck.
Towing a vehicle with all four wheels on
the ground
WARNING
Volvo does not recommend towing a disa-
bled vehicle behind another vehicle. Signif-
icant difficulty in steering and braking, com-
bined with unfavorable weather, traffic, and
road conditions may make it impossible to
maintain vehicle control.
1. Apply the parking brake.
WARNING
Towing a vehicle with a locked steering
wheel will make the vehicle impossible to
steer.
2. Insert the key into the ignition to unlock the
steering wheel. The steering wheel must be
unlocked. With the engine off and the vehi-cle at a standstill, great effort will be
required to turn the steering wheel.
3.
Turn the ignition key to position II.
4. Place the gear selector in neutral. For vehi-
cles with automatic transmissions, follow
instruction on page 153, "Shiftlock over-
ride" to allow the gear selector to be moved
from the Park position.
5. Keep firm pressure on the brake pedal
while releasing the parking brake.
6. When towing has been completed, return
the gear selector to Park (automatic) or
Reverse (manual) and apply the parking
brake.
The following points should also be
observed:
•Never exceed 50 mph (80 km/h). Never
exceed local towing speed limits and heed
all local towing restrictions.
•Never tow farther than 50 miles (80 km).
•Keep the tow rope taut at all times while the
vehicle is in motion.
•The disabled vehicle should be towed in
the forward direction only.

06 Starting and driving
Towing
06
160
WARNING
•Never allow a vehicle to be towed with-
out a driver behind the wheel of the dis-
abled vehicle.
•Never remove the key from the ignition
while the vehicle is moving. The steering
wheel could lock, making it impossible
to steer the vehicle.
•When the engine is not running, steering
resistance and the effort needed to
apply the brakes will be great.
•Never attempt to tow a vehicle with a
dead battery at night.
CAUTION
•Check with state and local authorities
before attempting this type of towing,
as vehicles being towed are subject to
regulations regarding maximum towing
speed, length and type of towing
device, lighting, marker flags, etc.
•Never attempt to push- or tow-start a
vehicle with a dead battery. This would
inject unburned fuel into the three-way
catalytic converter(s), causing over-
heating, backfiring, and damage, see
page 161 for instructions on jump star-
ting the vehicle.
Towing vehicles with front wheel drive
Volvo recommends the use of flat bed equip-
ment for towing vehicles with front wheel drive.
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.
•Sling-type equipment applied at the front
will damage radiator and air conditioning
lines.
•It is equally important not to use sling-type
equipment at the rear or apply lifting equip-
ment inside the rear wheels; serious dam-
age 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. Con-
sult 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 con-
siderably higher pressure will be
required on the brake pedal and greater
steering effort must be exerted.
•The towing eyelets must not be used for
pulling the 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.

06 Starting and driving
Transporting loads
06
165 Loading the vehicle
Your vehicle's load-carrying capacity is affec-
ted by factors such as:
•the number of passengers
•tire inflation
•the amount of optional or accessory equip-
ment installed
•the amount of cargo.
See the chapter "Wheels and tires" for more
detailed information.
Before loading the car, turn off the engine, and
apply the parking brake when loading or
unloading long objects. The gear selector can
be inadvertently knocked out of position by
long cargo, causing the car to move.
Keep the following in mind when
loading the vehicle:
•Load objects in the trunk against the rear
seat backrest.
•Load heavy cargo as low as possible.
•Center wide loads.
•Secure all cargo with restraining straps
anchored to the load securing eyelets.
•Cover sharp edges on the load.
•Seats can be folded down and head
restraints removed to extend the cargo
compartment, see page 115.
WARNING
•Remember that an object weighing
44 lbs (20 kg) produces a force of
2,200 lbs (1,000 kg) in a head-on colli-
sion at 30 mph (50 km/h)!
•When the rear backrest(s) are folded
down, the vehicle should not be loaded
to a level higher than 2 in. (5 cm) below
the upper edge of the rear side win-
dows. Objects placed higher than this
level could impede the function of the
Volvo Inflatable Curtain.
Load carriers (accessory)
Load carriers are available as Volvo accesso-
ries. Follow the installation instructions sup-
plied with the load carriers.
Observe the following points when using load
carriers:
•To avoid damaging your car and to achieve
maximum safety when driving, we recom-
mend using the load carriers that Volvo has
developed especially for your car.
•Volvo-approved removable roof racks are
designed to carry the maximum allowable
roof load for this vehicle: 165 lbs (75 kg).
For Non-Volvo roof racks, check the man-
ufacturer's weight limits for the rack.
•Never exceed the rack manufacturer's
weigh limits and never exceed the maxi-
mum rated roof load of 165 lbs (75 kg).
•Avoid single-point loads. Distribute loads
evenly.
•Place heavier cargo at the bottom of the
load.
•Secure the cargo correctly with appropri-
ate tie-down equipment.
•Check periodically that the load carriers
and load are properly secured.
•Remember that the car's center of gravity
and handling change when you carry a
load on the roof.
•The car's wind resistance and fuel con-
sumption will increase with the size of the
load.
•Drive smoothly. Avoid rapid starts, fast
cornering and hard braking.

07 Wheels and tires
Wheel nuts
07
191 Wheel nuts
G020324
Low nut.
High nut.
There are two different types of wheel nut,
depending on whether the wheels are steel or
aluminum.
Steel rims – low nutSteel rims are normally secured using the low
type of nut, although steel rims may also use
the high type.
WARNING
Never use the short type of nut for alumi-
nium wheels. This could cause the wheel to
come loose.
Aluminum wheels – high nutOnly the high type of nut can be used for alu-
minum wheels. This is considerably different
from other types of nut because it has a rotat-
ing conical thrust washer.
NOTE
This nut can also be used on steel wheels.
Lockable wheel nutIf steel wheels with lockable wheel nuts are
used in combination with wheel covers, the
lockable wheel nut must be fitted to the stud
nearest the air valve. The wheel cover cannot
otherwise be installed on the wheel.

07 Wheels and tires
Changing a wheel
07
193
WARNING
•The jack must correctly engage the jack
attachment.
•Be sure the jack is on a firm, level, non-
slippery surface.
•Never allow any part of your body to be
extended under a car supported by a
jack.
•Use the jack intended for the car when
changing a tire. For any other job, use
stands to support the car.
•Apply the parking brake and put the
gear selector in the Park (P) position or
reverse on models with a manual trans-
mission.
•Block the wheels standing on the
ground, use rigid wooden blocks or
large stones.
•The jack should be kept well-greased
and clean, and should not be damaged.
•No objects should be placed between
the base of jack and the ground, or
between the jack and the attachment
bar on the vehicle.
Installing the wheel
1. Clean the contact surfaces on the wheel
and hub.
2. Lift the wheel and place it on the hub.
3. Install the wheel nuts and tighten hand-
tight. Using the lug wrench, tighten cross-
wise until all nuts are snug.
4. Lower the vehicle to the ground and alter-
nately tighten the bolts crosswise to
81 ft. lbs. (110 Nm).
5. Install the wheel cover (where applicable).
Returning the jack to its storage space
The jack (certain models) and tools should be
returned to their correct storage places after
use.
•On vehicles equipped with a jack and
spare wheel, the jack should be cranked
down and returned to its storage position
after use.
•On vehicles equipped with the tire sealing
system, the jack should be cranked down
as far as possible and returned to its stor-
age position in the foam block.
WARNING
The jack and any tools should always be
returned to their proper storage compart-
ments after use to help keep them securely
in place in the event of sudden braking, etc.