2006 SAAB 9-3 sensor

183 Starting and driving
Hill Start Assist (HSA)3(Hillstarting assistance)
This function facilitates starting on a hill.
When the parking brake has been released
and the foot is moved off the brake pedal it
can take approx. 1.5 s before the brakes
release. The brakes release as soon as the
accelerator pedal is depressed within this
time.
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 under the speedometer if:
 a fault has been detected and the system
has therefore been switched off
 there is a fault in the ABS system
 the system has been switched off
manually.
WARNING
When driving normally, the TCS system
helps to improve the car’s directional
stability. The TCS must not be regarded
as a system to enable the driver to main-
tain higher speeds. The same precau-
tions must be adopted as normal for safe
cornering and driving on slippery roads.
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185 Starting and driving
Electronic Stability
Program (ESP)3Anti-skid system
The Electronic Stability Program employs
both the antilock braking system (ABS) and
the traction control system (TCS). It is a
system that helps the driver to stabilize the
car in unusual circumstances that can oth-
erwise be difficult to handle.
How the ESP system worksThe Electronic Stability Program 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 prevent the driving wheels from
spinning. The car has sensors that measure
wheel speed, yaw rate, lateral acceleration,
steering wheel position and braking pres-
sure. 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 should be engaged.
If this direction does not agree with that
intended by the driver, calculated from the
steering wheel position, the ESP is
engaged.
The ESP 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 directional
stability. The ESP must not be regarded
as a system to enable the driver to main-
tain higher speeds. The same precau-
tions 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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190 Starting and drivingSaab Parking
Assistance3Saab 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 seatbelt
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
increases as the car comes closer to the
object.
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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191 Starting and driving
If you stop the car with reverse gear
engaged, the sound pulse will stop after
2 seconds. The sound pulses will return if
you continue to reverse. If the car rolls for-
ward while reverse is engaged, the system
is silenced.
When the distance to the object is less
than 1 ft. (30 cm), a continuous tone will
be heard.
When an object is approximately 3 ft.
(90 cm) from the car, the sound pulses
change character markedly (frequency
increases). A distance of about 3 ft. (90 cm)
is suitable if you wish to load or unload the
trunk.
If the distance between an object and a
corner sensor does not change for
3 seconds, for example if you are reversing
alongside a wall, the system will switch to
monitoring straight back. The system indi-
cates if the distance to the wall decreases
again.
If a trailer is hitched up and correctly con-
nected to the trailer contact by the tow bar,
the system is automatically deactivated.Reversing alongside a wall
If the distance between an object and a
corner sensor does not change for
2 seconds, for example if you are reversing
alongside a wall, the system will switch to
monitoring straight back. The system indi-
cates if the distance to the wall decreases
again.Cars with trailer hitch
If the car has a trailer hitch and its wiring is
correctly connected to the car’s electrical
system, the Saab Parking Assistance auto-
matically compensates for the protrusion of
the tow bar.
If a camper or trailer is hitched up and the
trailer hitch wiring is correctly connected to
the car’s electrics, the system is automati-
cally deactivated.
You can temporarily deactivate the Saab
Parking Assistance as follows:
 Engage reverse and press the CLEAR
button on the SID control panel.
The system will be reactivated the next time
you engage reverse.
NOTICEThe sensors must be kept clean to func-
tion well. Ice, snow and dirt can affect
their sensitivity.
Large quantities of snow or dirt covering
the sensors can prevent the parking
assistance system from detecting any
objects.
Do not spray the sensors with a pressure
washer, as this can damage them.
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192 Starting and drivingError messages
If the system malfunctions, the following
message will appear on the SID:
If the system is subject to interference, the
following message will be shown on the
SID:
If this message appears, clean the sensors.
The sensors are located in the black trim on
the rear bumper The system can be switched off using
Profiler.
1 Press the CUSTOMIZE button to go to
Profiler.
2 Select Park Assistance using the
INFO dial.
3 Press in the INFO dial.
4 Select SPA on or SPA off.
5 Confirm this selection by pressing the
INFO dial.Explanation of SPA on and SPA off.
Parking assistance
malfunction.
Contact Saab dealer.
Parking assistance sensor
interference.
Park Assistance
SPA onSPA off
SPA on
Saab Parking Assistance is activated
automatically when reverse is
engaged. The system warns of objects
behind the car.
If a trailer is hitched up and correctly
connected to the trailer connector, the
system will be deactivated automati-
cally. You can also deactivate the sys-
tem temporarily with the CLEAR button
if reverse has been engaged and the
system is active.
SPA off
Saab Parking Assistance deactivated.
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219 Car care
Engine oilChecking the oil levelCheck the engine oil level regularly.
1 Park the car on a level ground.
2 Switch off the engine and wait for
2–5 minutes. The engine should be at
normal operating temperature.
3 Take the dipstick out and wipe it off with
a clean rag before carrying out the
check.
The level must not be below the MIN mark
on the dipstick, but nor should it be above
the MAX mark. Excess engine oil could
result in abnormal oil consumption.
The distance between the MIN and MAX
marks is equivalent to 1.0 qt (1.0 l).2.0 Turbo (210 hk): The engine oil level is
checked each time the engine is started. If
the oil level is low, the following message
appears on the SID:
f this occurs the oil level must be checked
first. If the level is too low then it must be
topped up.V6: The engine has an oil level sensor that
checks the oil level when the engine is
running. If the oil level drops too low, the
following message appears on the SID:
f this occurs the oil level must be checked
first. If the level is too low then it must be
topped up.NOTICEToo high oil level can damage the engine.
Low engine oil level.
Fill oil now.
Low engine oil level.
Fill oil now.
Oil filler cap and dipstick, 4-cyl engine
Oil filler cap and dipstick, V6 engine
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233 Car careXenon headlight, dipped beam3Xenon headlights produce roughly two times as much light as halo-
gen bulbs and have a significantly longer service life.
The lamp units consist of a gas discharge lamp containing xenon.
When the lights are switched on a very high voltage activates the
xenon gas. The lamps soon reach full intensity.
Cars with xenon headlights have automatic levelling. The levelling
system is comprised of two sensors, one on the front suspension
and one on the rear suspension, and a control unit by the engine bay
fuse box. Headlight alignment is adjusted automatically to the car’s
load to prevent dazzling drivers in oncoming traffic.
If a fault is detected in the system, the following message will be dis-
played on the SID:
WARNING
Xenon headlights are high tension. All work on xenon headlights,
including changing bulbs, must be carried out by dealer person-
nel.
Headlight levelling
malfunction.
Contact Saab dealer.
We recommend you to contact a Saab
dealer to have a xenon headlight changed
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249 Car care
Fuse panel in end of fasciaNo. Amp. Function
1 15 Steering wheel lock
2 5 Steering column unit; ignition switch
310 Hands-free3; CD-player3/CD-changer in cabin3;
SID
410 Main instrument unit; manual climate control;
automatic climate control (ACC)3
57.5 Control module in front doors; Park Brake Shift Lock
(automatic transmission)
6 7.5 Brake light switch
7 20 Dash fuse panel; fuel filler door
8 30 Control module in passenger front door
9 10 Dash fuse panel
1030 Trailer socket3; electrical socket in storage com-
partment between seats3
11 10 Data link connection (diagnostics)
12 15 Interior lighting incl. glove box
13 10 Accessories
1420 Radio, sound system I3; control panel,
Infotainment System3
15 30 Control module in driver’s door
16 5 Passenger Sensing System
17 - -
18 7.5 Manual climate control3
19 - -
20 7.5 Headlight levelling switch3
217.5 Hands-free3; brake light switch; manual climate
control3; clutch pedal switch
22 30 Cigarette lighter3
23 40 Cabin fan
24 7.5 Airbag control module
25 - -
26 5 Yaw sensor (cars with ESP)
27 - -
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