2005 SAAB 9-5 Owners Manual

151 Starting and driving
Cruise controlFor safety reasons (brake system func-
tion) the brakes must be applied once,
when the engine has started, before the
cruise control system can be activated
.
The system is operated by means of the
controls on the stalk switch:
 ON/OFF (switch on/off).
 RESUME/– (Resume preset speed).
 SET/+ (to set the desired speed).
 CANCEL (Cancel operation of system,
e.g. to reduce speed temporarily).
When the system is ON, the CRUISE indi-
cator light will appear on the main instru-
ment panel and will be extinguished when
the system is switched OFF. If CANCEL is
selected, CRUISE will flash once.
To set the desired speed Move the switch to ON. Accelerate to the
desired speed (minimum speed: 25 mph
(40 km/h))and press SET/+. To increase the preset speed Accelerate to the desired speed and press
SET/+.
You can also increase the speed of the car
using the SET/+ button. Press it once to
increase the speed by 1 mph (1.6 km/h) or
hold it in and release when the desired
speed is reached. Temporary increase in speed Press the accelerator to override the preset
speed, e.g. for overtaking. When you release the accelerator, the
system will revert to the preset speed.
To cancel temporarily Move the control stalk to CANCEL (spring-
loaded position before OFF position). This
will disengage the system but the preset
speed will be retained in the system mem-
ory. (The memory is deleted when the
engine is switched off.) To re-engage the system To revert to the preset speed, slide the
switch to RESUME/–. This will only operate
when the car’s speed is above 25 mph
(40 km/h).
WARNING
 Do not use the Cruise control system
on wet or icy roads, in dense traffic or
on winding roads.
 Set the control to OFF when you do
not want to use the system, to prevent
the system being activated inadver-
tently.
IB1593
Cruise-control switches
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152 Starting and drivingTo reduce the preset speedThe cruise control system will always disen-
gage automatically the moment that either
the brake pedal or the clutch pedal is
depressed.
It is also possible to reduce the speed by
means of the RESUME/– button.
Sliding the button to RESUME/– once will
reduce the speed by 1 mph (1.6 km/h).
Holding the button in the RESUME/– posi-
tion will effect a gradual reduction in speed
until the button is released.
Disengaging the system The system will be disengaged:
 When the brake or clutch pedal is depres-
sed.
 When the switch is moved to CANCEL.
 When the switch is moved to OFF.
 When the engine is switched off.
 When the selector lever is moved to posi-
tion N (cars with automatic transmission).
 When the ESP system is operative for
more than 1 second.
BrakingTo avoid the brakes becoming overheated,
(e.g. when negotiating long descents with a
drop of several hundred feet), select a low
gear to use the braking effect of the engine.
If the car has automatic transmission, move
the selector lever to position D or L.
When driving fast, you can help to prolong
the life of the brakes by thinking ahead and
braking harder for short periods, rather than
braking more moderately over long
stretches. Brake pad wear indicatorsThe outboard brake pads on the front
wheels incorporate pad-wear indicators.
When the lining is down to 3 mm, the pad
will produce a screeching, squealing or
scraping noise when the brakes are applied.
New pads should be fitted without delay. Brake pads should only be replaced by
an authorized Saab dealer.
To ensure optimum brake performance,
it is recommended that you use only
Saab original brake pads.
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153 Starting and driving

ABS brakes
ABS (antilock braking system) modulates
the brake pressure to the respective
wheels. Wheel sensors detect if a wheel is
about to lock, and the control module redu-
ces the pressure to that wheel and then
increases it once more until the tendency is
detected again.
The brake system is equipped with an Elec-
tronic Brake-force Distribution device
(EBD), which distributes the brake pressure
between the front and rear wheels, in such
a way as to achieve optimum braking perfor-
mance irrespective of the car’s speed and
load.
WARNING
 It is prudent to try your brakes from
time to time, especially when driving in
heavy rain, through water collected on
the road, in snow, on a wet road sur-
face or in salty slush. In such condi-
tions, the brakes may take longer than
normal to take effect. To rectify this,
touch the brake pedal periodically to
dry the brakes out.
 The same applies after the car has
been washed or when the weather is
very humid.
 Avoid parking the car with wet brakes.
Before parking, and if the traffic condi-
tions allow, brake quite heavily so that
the brake discs and pads warm up and
dry.
 The brakes are power assisted and it
should be kept in mind that the servo
unit only provides the power assis-
tance when the engine is running.
 The brake pressure required when the
engine is off,(e.g. when the car is
being towed) is roughly four times the
normal pedal force required. The
pedal also feels hard and unre-
sponsive.
WARNING
 The additional safety afforded by the
ABS system is not designed to allow
drivers to drive faster but to make
normal driving safer.
 To stop as quickly as possible, without
loss of directional stability, whether
the road surface is dry, wet or slippery, press the brake pedal down hard-
without letting up (do not pump the
pedal),
declutching simultan-
eously, and steer the car to safety.
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154 Starting and drivingThe ABS system has a built-in diagnostic
function which will switch on the Anti-lock
brake warning light if a fault is detected in
the system (see page 54).
The ABS system will not reduce the braking
distance on loose gravel or on snow or ice
but, because the wheels cannot lock up,
some steering control is retained.
When the ABS system is working, i.e. mod-
ulation of the brake pressure is in progress,
the brake pedal will pulsate and a ticking
noise will be heard. All this is perfectly nor-
mal.
Press the pedal
down hard
(you cannot
press too hard) and steer the car to safety.
Do not release the brake pedal before the
car has come to a halt or the danger has
passed! If the road is slippery, the ABS system will
operate even when only light pressure is
applied to the pedal. This means that you
can brake gently to test the condition of the
road and adapt your driving accordingly.
It is well worth practicing the use of ABS
brakes on a skid pad or other suitable
facility.
IB476
Braking with ABS brakes.
When the system is operating, the brake
pedal will pulsate gently and the system
will make a ticking noise.
IB477
Braking with ABS – evasive steering
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155 Starting and driving
Electronic Stability
Program (ESP)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 acceleration, lateral
acceleration, steering wheel position and
braking pressure. The values provided by
these sensors are used to calculate the
actual direction of the car. If this direction
does not agree with that intended by the
driver, calculated from the steering wheel
position, the ESP is engaged.
ESP improves the driver’s chances of
retaining control over the car in critical situ-
ations.
To ensure that the system works as
designed, the dimensions of all four tires
must be the same.
WARNING
When driving normally, ESP will help to
improve the stability of the car. This does
not mean that car can be driven faster.
The same care and prudence as normally
applied should be displayed on cornering
and when driving on slippery roads.
IB1841
Increased stability with ESP.
The system applies the brakes to the
wheels as shown to help prevent the car
from skidding
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156 Starting and drivingESP indicator lightThe indicator light in the tachometer
comes on for a short period of time when the
ESP system is operative.
Operation of the ESP indicates reduced
cohesion between the tires and the road,
and that extra care should be taken by the
driver.ESP OFFThe light in the rev counter comes on
if:
 A fault has been detected and the system
has therefore been switched off.
 The system has been switched off manu-
ally.
 When the ignition key is turned to the ON
position, the lamp is lit for about four
seconds while the system undergoes a
self-test.
Turning ESP offThe system can be turned off manually with
the ESP button, whereupon the light
on the main instrument panel will come on.
The ESP system cannot be switched off if
the car is travelling faster than 35 mph
(60 km/h).
The ESP is always operative during brak-
ing, even if it has been switched off manu-
ally.NOTICESuspension modifications, such as
changing the type of wheels, dampers or
springs, can affect the function of the ESP
system.
Always consult a Saab dealer before
changing any suspension components.
IB3051
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157 Starting and driving
Economical motoringFactors affecting fuel
consumptionFuel consumption is greatly affected by the
general driving conditions, the way in which
the car is driven and at what speeds, the
weather, the state of the road, the condition
of the car, etc. Breaking-inFuel consumption may be somewhat higher
during the break-in period (the first 3,000–
4,000 miles (5,000–7,000 km) than stated.Weather conditionsFuel consumption can be as much as 10 %
lower in summer than in winter. The higher
consumption in cold weather is explained by
the longer time it takes for the engine to
reach normal operating temperature, and
for the transmission and wheel bearings to
warm up. Fuel economy is also affected by
the distance driven: short journeys of
3–5 miles (5–8 km) do not give the engine
enough time to reach normal temperature.
Strong winds can also affect fuel con-
sumption. How to read the graph above:
If fuel consumption with the engine at
normal temperature is 28 mpg
(10l/100 km), the actual fuel consumption 3
miles (5 km) after the engine has started
from cold will be:
– 23.5 mpg (12l/100 km) at outside temp. of
68°F (20°C) (increase of 20 %).
– 17.7 mpg (16l/100 km) at outside temp. of
32°F (0°C) (increase of 60 %).
– 14 mpg (20l/100 km)) at outside temp. of
–4°F (–20°C) (increase of 100 %).
As can be seen, both the distance travelled
by the car and the outside temperature have
a major impact on fuel consumption after
the engine has started from cold. Thus, if the
car is mainly used for short journeys of
3–5 miles (5–8 km), the fuel consumption
will be 60–80 % higher than normal.
IB311
Percentage increase in fuel consumption
of engine starting from cold compared to
engine at normal temperature.
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158 Starting and drivingDriving technique To obtain the best running economy, not
only regarding fuel consumption but
general wear also, regular service is
required.
 High speed, unnecessary acceleration,
heavy braking and much low gear work all
gives rise to higher fuel consumption.
 Frequent gear changing in traffic, starting
in cold weather, the use of studded tires
and roof racks, and towing a trailer all
increase fuel consumption.
 Do not run the engine when the car is sta-
tionary.
If idling, it will take much longer before the
engine becomes hot. Engine wear is gre-
atest during this warming-up phase. The-
refore drive away as soon as possible
after the engine is started and avoid high
revving. Driving in a low gear results in higher fuel
consumption than in a high gear because
of the higher engine speed for a given
road speed. Always change up to a higher
gear as soon as traffic conditions allow
and use the highest gear as much as pos-
sible.
 Check the air pressure in the tires once a
month. Incorrect pressures increase tire
wear. It is better to have slightly higher
pressure than lower.
 Check fuel consumption regularly.
Increased consumption can indicate that
something is wrong and that the car
needs to be checked by an authorized
Saab dealer.
Practical trials on the roads have demon-
strated that substantial savings in fuel con-
sumption can be made if the above advice
is heeded.
Road conditionsWet roads increase fuel consumption, as do
unpaved roads and driving in hilly country
(the amount of fuel saved driving downhill is
less than the additional amount required to
climb the hill).
WARNING
Never switch the engine off while driving
as the effect of the brakes and power ste-
ering will be greatly reduced.
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