sensor SAAB 9-3 2008 User Guide

96 Instruments and controlsExplanation of the various selections under
Settings.Resetting the service indication
Reset the service indication in accordance
with the following:
1 Turn the ignition switch to the ON posi-
tion, the engine must be switched off.
2Select Settings using the steering
wheel controls, or .
3 Press and hold the SET button until
given audible confirmation.
4Select Time for Service.
5 Press the SET button.
6 To the question Reset Service Ind?
select YES (Press CLR button to undo).
ClockAdjustments can be made in the Infotain-
ment system.
See separate Manual. Rain Sensor
The sensitivity has three levels.
Park Assistance
The Park Assistance can be shut off by
choosing OFF.
Alarm Clock
Setting of alarm clock is possible.
Language
Select the desired language. The num-
ber of languages can vary between
markets.
Speed Scale Illum.
Select the proportion of the speedo-
meter to be illuminated in NIGHT-
PANEL mode.
Speed Scale Sel.
Select if both scales or just mph-scale
shall be illuminated in NIGHTPANEL
mode.Unit
Select the desired group of units.
Next Service: xx%
Displayed percentage is approximately
equivalent to the condition of the
engine oil. 100% is equivalent to new
engine oil. The type of service that is
required is also shown here.
Time for Service.
When it is time for service the required
service type is displayed.
INTERMEDIATE
MAIN
MAIN & INTERMED
A service indication must only be
reset after the service has been
performed.
TCS/ESP
Select whether the system shall be on
or off. The car has either TCS or ESP.
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103 Instruments and controls
Priority of audible informationIf two or more functions are active simulta-
neously, the most important function at that
time will be prioritized.
If, for example, the direction indicators are
active when you engage reverse, the park-
ing assistance (if fitted) will be heard instead
of the direction indicators. When reverse is
disengaged, the direction indicators will be
heard, if they are still active.
Wipers and washersWindshield wipersPosition 1 is a spring-loaded position that
will produce a single sweep of the wipers.
The wipers always return to their home posi-
tion when the ignition is turned off.
To leave the wipers positioned vertically on
the windshield, proceed as follows:
1 Switch off the engine and remove the
remote control.
2 Activate the wipers within the next
16 seconds by pressing the stalk switch
down.
When the ignition is next switched on the
wipers will return to their home position.
Changing wipers blades, see page 220.
Rain sensor3
33 3When the rain sensor is activated the follow-
ing symbol is displayed in SID .
The rain sensor automatically controls the
windshield wipers. The sensor is located on
the windshield beside the rearview mirror.
The system varies the frequency of wiping
between single sweeps and continuous
wiping, depending on the amount of pre-
cipitation.
WARNING
Turn the rain sensor off if the ignition is
ON to avoid personal injury when clearing
snow and ice from the windshield.NOTETurn the rain sensor off before washing
the car in an automatic carwash, to avoid
damaging the windshield wipers.
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104 Instruments and controls
Activate the rain sensor by lifting the stalk
switch to the AUTO position. The wipers
make one sweep for reference to see how
much water is on the windshield. Thereafter
the sensor compares the amount of water
on the windshield with this reference value.
If the stalk switch is left in the AUTO position
when the engine is switched off, when the
engine is next started it must first be moved
to the 0 or 3 position and then back to AUTO
to reactivate the sensor.
If the system malfunctions, the wipers will
operate at low speed when the stalk switch
is set to the AUTO position and SID will
show:
WashersActivate the washers by pulling the stalk
switch towards the steering wheel.
When the washers are operated, the wipers
will make 3, 4 or 5 sweeps, depending on
how long the washers were kept on. If
the speed of the car is less than 12 mph
(20 km/h), the wipers will make an addi-
tional sweep after roughly 8 seconds.
When the washer fluid level drops below
1 quart (1 litre), the headlight washers (if
equipped) are deactivated. This is in order
to prioritize the windshield. The following
message is displayed on the SID:
Rain sensor malfunc.
Contact service.
Washer fluid level low.
Refill.
Windshield wipers with rain sensor0OFF
1 Single sweep
2 AUTO - rain sensor engaged
3 Low speed
4 High speed
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105 Instruments and controls
Headlight washers3
33 3The headlights are washed at the same time
as the windshield if the headlights are on.
The headlights are washed every fifth time
the windshield washers are used or if two
(2) minutes have elapsed since the wind-
shield was last washed.
The headlight washers are not activated at
speeds in excess of 125 mph (200 km/h).Adjusting sensitivity
The sensitivity of the rain sensor can be
adjusted under Settings.
1Select Settings using the steering
wheel controls, or .
2 Press and hold the SET button until
given audible confirmation.
3Select Rain Sensor.
4 Press the SET button.
5 Select the sensitivity.
6 Confirm this selection by pressing the
SET button.
Go back/modify using the CLR-button.The sensitivity of the sensor is also affected
by the amount of daylight. The sensor is
somewhat more sensitive at night. This
adjustment is automatic.
Explanation of sensor sensitivity.
Rain Sensor
HIGHMEDIUMLOW
HIGH
The sensor is set to high sensitivity.
The wipers start when there is only
a small amount of water on
the windshield.
MEDIUM
The sensor is set to normal sensitivity.
This is one of the Default Settings.
LOW
The sensor is set to low sensitivity (wip-
ers operate only with a large amount of
water on the windshield, i.e., down-
pour).
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108 Instruments and controls
The system uses seven sensors:
Outside air temperature sensor
Cabin air temperature sensor (by the inte-
rior rearveiw mirror)
Sun sensor (on the facia)
Blended air temperature sensors 2
(located in the front floor vents).
Blended air temperature sensors 2
(located in the outer panel vents).
Note
If the sun sensor is covered, the ACC
system will not be able to regulate the cabin
climate as intended.
Sun- and cabin sensor, SportSedan and
SportCombi1 Sun sensor
2 Cabin temperature sensor
Sun- and cabin sensor, Convertible1 Sun sensor
2 Cabin temperature sensor
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157 Starting and driving
Limp-homeThe engine management system has a
diagnostic feature that checks a number of
internal functions. If a fault is detected in the
throttle valve, the engine management
system will set the throttle system to the
limp-home mode. This means:
idling control will be poor (uneven idling
since regulated by ignition and fuel
supply)
engine performance will be reduced
the cruise control will not function
the capacity of the A/C compressor will be
limited.
If the diagnosis function detects a fault in the
engine management system, the light
"Engine malfunction (CHECK ENGINE)" in
the instrument panel will come on (see
page 83). Have the car checked at a work-
shop as soon as possible. We recommend
that you contact a Saab dealer.
Important considerations with
catalytic convertersThe catalytic converter is an emission con-
trol device incorporated in the car’s exhaust
system. It consists of a metal canister with a
honeycomb insert, the cells of which have
walls coated in a catalytic layer (precious
metal alloy).
To ensure that the catalytic converter con-
tinues to function properly, and also to avoid
damage to the converter and its associated
components, the following points must be
observed:
NOTEIf "Engine malfunction (CHECK
ENGINE)" warning light starts to flash
(indicating that the engine is misfiring and
the catalytic converter can be damaged),
ease off the accelerator slightly. The light
should go out or start to shine constantly.
If the light continues to flash despite
easing off the accelerator, you may con-
tinue to drive the car but at the minimum
throttle permitted by the current traffic sit-
uation. Have the car checked as soon as
possible. We recommend that you con-
tact a Saab dealer.
NOTEUse only unleaded gasoline. Leaded gas-
oline is detrimental to the catalyst and
oxygen sensor and will seriously impair
the function of the catalytic converter.
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158 Starting and drivingHave the car serviced regularly in accor-
dance with the service program.
Always be alert to any misfiring of the
engine (not running on all cylinders) and
any loss of power or performance. At the
first sign of a malfunction, reduce speed
and take the car to a workshop. We
recommend that you contact a Saab
dealer.
If the engine fails to start (in severe cold or
if the battery is flat), the car can be bump
started (manual transmission only) or
started using jump leads to a donor
battery. However, as soon as you have
started the engine, it is important that it
runs on all cylinders. If it is misfiring, allow
it to idle for up to 5 minutes to give it time
to settle and run smoothly. If, after this
time, the engine still fails to run properly,
switch off the engine to avoid serious
damage to the catalytic converter. We
recommend that you contact a Saab
dealer for advice.Never park the car on dry grass or other
combustible material. The catalytic
converter gets very hot and could there-
fore start a fire.
Never drive off if the engine is misfiring.
If you bump start the car when the engine
is already at normal working temperature,
the engine must start to run on all cylin-
ders. Abort bump starting if the engine
fails to start immediately.
Failure to strictly follow these instructions
can result in damage to the catalytic con-
verter and associated components, and
could represent a breach of the warranty
conditions.
NOTEIf the car runs out of gas, air may be drawn
in with the fuel, which, in turn, can cause
the catalytic converter to be damaged by
overheating.
WARNING
If the engine is being run with the car on a
rolling road or dynamometer, to ensure
adequate cooling, air must be blown into
the engine compartment and under the
car at a rate equivalent to the ram-air
effect that would obtain at the corre-
sponding road speed.
Engine management system with catalytic
converter1 Engine control module
2 Oxygen sensor
3 Catalytic converter
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175 Starting and driving
Traction Control
System (TCS)Anti-spin systemHow the system worksThe Traction Control System (TCS) is
designed to prevent wheelspin. This
enables the car to achieve the best possible
grip and, hence, maximum tractive effort,
together with greater stability.The TCS uses information from the ABS
wheel sensors to detect when the front (driv-
ing) wheels are rotating faster then the rear
wheels.
If the two front wheels are rotating faster
than the rear wheels, the torque from the
engine is reduced to eliminate the differ-
ence.
The process continues until all the wheels
are rotating at the same speed.
The advantages of the TCS become most
apparent when the cohesion between the
front wheels and the road surface is so low
that one or both of the wheels would lose
their grip were the car not equipped with the
TCS, e.g.:
When the car is pulling away or accelerat-
ing with the front wheels on different
surfaces (e.g. one slippery and one dry),
the TCS functions like an electronic differ-
ential lock, making sure that both wheels
rotate at the same speed. The system
also functions when the car is reversing.
When cornering, if the inside front wheel
rotates faster than the other wheels.
TCS OFF
lights up if:
the system has been switched off
manually. It cannot be switched off if the
car is travelling faster than 35 mph
(60 km/h).
there is a fault in the ABS system
a fault has been detected and the system
has therefore been switched off and at the
same time the following message is
shown on the SID:
WARNING
When driving normally, the TCS system
helps to improve the car’s stability,
maneuverability and traction under slip-
pery road and extreme driving conditions.
The TCS must not be regarded as a
system to enable the driver to maintain
higher speeds. The same precautions
must be adopted as normal for safe cor-
nering and driving on slippery roads.
Traction control failure.
Contact service.
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177 Starting and driving
Electronic Stability
Program ESP
®
Anti-skid system
The ESP
® system employs both the
antilock braking system (ABS) and the trac-
tion control system (TCS). It is a system that
helps the driver to stabilize the car in
unusual circumstances that can otherwise
be more difficult to handle.
How the ESP
® system works
The ESP
® system can help to prevent the
car from skidding by braking one or several
wheels independently of the driver. The
engine output is then also reduced to pre-
vent the driving wheels from spinning. The
car has sensors that measure wheel speed,
yaw rate, lateral acceleration, steering
wheel position and braking pressure. The
values provided by these sensors are used
to calculate the actual direction of the car,
the intentions of the driver and whether the
ESP
® system should be engaged.
If this direction does not agree with that
intended by the driver, calculated from the
steering wheel position, the ESP
® system is
engaged.
The ESP
® system improves the driver’s
chances of retaining control over the car in
a critical situation.
WARNING
When driving normally, the ESP
® system
helps to improve the car’s stability and
maneuverability under slippery road and
extreme driving conditions. The ESP
®
system must not be regarded as a system
to enable the driver to maintain higher
speeds. The same precautions must be
adopted as normal for safe cornering and
driving on slippery roads must be
adopted.
Illustration of how the system applies the
brakes on one or several wheels in order
to reduce the likelihood of the car skidding
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182 Starting and drivingSaab Parking
Assistance3
33 3Saab Parking Assistance
Saab Parking Assistance facilitates parking
and reversing. There are four sensors in the
rear bumper that detect objects up to 6 ft
(1.8 meters) behind the car.
If the car is heavily laden, the system may
falsely indicate that there is an object within
the detection range. This is since the sen-
sors are angled towards the ground when
the car is tail-heavy.The system uses four sensors in the rear
bumper. These emit ultrasound signals that
bounce back to the sensors off any objects
behind the car. The system, however,
cannot always detect small or narrow
objects, such as a post, since the surface
area presented to the car is too small.The system is activated automatically when
reverse is engaged or selected. Audible
confirmation is given and the following text
is shown on the SID:
If a warning message, such as the safety-
belt reminder, is shown on the SID when
reverse is engaged, the audible signals
from the parking assistance system will not
be heard since the warning message has
priority.
When the sensors detect an object within
the monitored area, pulses of sound (- - - -)
will be heard. The frequency of these pulses
WARNING
Responsibility always lies with the driver
when reversing.
The parking assistance system can
facilitate parking and reversing.
Bear in mind that small objects, such
as a child lying on the ground, and
narrow objects cannot always be
detected by the system.
Parking assistance
active
Area monitored by the sensors seen from
the side
Area monitored by the sensors seen from
above
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