2007 VOLVO S80 brake sensor

If the SRS warning light stays on after the engine has started or if it illuminates while you are driving, have the
vehicle inspected by a trained and qualified Volvo service technician as soon as possible.
Never try to repair any component or part of the SRS yourself. Any interference in the system could cause
malfunction and serious injury. All work on these systems should be performed by a trained and qualified Volvo
service technician.
WARNING
If your vehicle has been subjected to flood conditions (e.g. soaked carpeting/standing water on the floor of the
vehicle) or if your vehicle has become flood-damaged in any way, do not attempt to start the vehicle or insert the
remote control into the ignition slot before disconnecting the battery (see below). This may cause airbag deployment
which could result in personal injury. Have the vehicle towed to a trained and qualified Volvo service technician for
repairs.
Automatic transmission:
Before attempting to tow the vehicle, use the following procedure to override the shiftlock system to move the gear
selector to the neutral position:
Switch off the ignition for at least 10 minutes and disconnect the battery
Wait at least one minute.
Insert the remote control into the ignition slot and press the Start button (without depressing brake pedal) to go to
ignition mode II. See page 75
for more information.
Press firmly on the brake pedal.
Move the gear selector from (P)ark to the (N)eutral position. See page 106 for information on manually overriding
the shiftlock system.
18 01 Safety
Safety in the passenger compartment
Front airbags
The front airbag system
The front airbags supplement the three-point seat belts. For these airbags to provide the protection intended, seat belts
must be worn at all times.
The front airbag system includes gas generators surrounded by the airbags and a deceleration sensor that activates the
gas generators, causing the airbags to be inflated with nitrogen gas.
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Driving after a collision
If the vehicle has been involved in a collision, the text SAFETY MODE SEE MANUAL may appear in the
information display. This indicates that the vehicle's functionality has been reduced.
NOTE
This text can only be shown if the display is undamaged and the vehicle's electrical system is intact.
Safety mode is a feature that is triggered if one or more of the safety systems (e.g. front or side airbags, an inflatable
curtain, or one or more of the seat belt tensioners) has deployed. The collision may have damaged an important
function in the vehicle, such as the fuel lines, sensors for one of the safety systems, the brake system, etc.
WARNING
Never attempt to repair the vehicle yourself or to reset the electrical system after the vehicle has displayed
SAFETY MODE SEE MANUAL. This could result in injury or improper system function.
Restoring the vehicle to normal operating status should only be done by a trained and qualified Volvo service
technician.
After SAFETY MODE SEE MANUAL has been displayed, if you detect the odor of fuel vapor, or see any signs
of fuel leakage, do not attempt to start the vehicle. Leave the vehicle immediately.
Attempting to start the vehicle
If damage to the vehicle is minor and there is no fuel leakage, you may attempt to start the vehicle. To do so:
1. Remove the remote control from the ignition slot.
2. Reinsert the remote in the ignition slot. The vehicle will then attempt to reset Safety mode to normal status.
3. Try to start the vehicle.
Moving the vehicle
If the electrical system is able to reset system status to normal (SAFETY MODE SEE MANUAL will no longer be
shown in the display), the vehicle may be moved carefully from its present position, if for example, it is blocking
traffic. It should, however, not be moved farther than is absolutely necessary.
WARNING
Even if the vehicle appears to be drivable after Safety mode has been set, it should not be driven or towed (pulled by
another vehicle). There may be concealed damage that could make it difficult or impossible to control. The vehicle
should be transported on a flatbed tow truck to a trained and qualified Volvo service technician for inspection/repairs.
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to remain approximately 2 seconds behind the vehicle ahead).
145 04 Comfort and driving pleasure
Adaptive Cruise Control-ACC
WARNING
Adaptive cruise control is not a collision avoidance system. The driver is always responsible for applying the
brakes if the system does not detect another vehicle.
Adaptive cruise control does not react to slow moving or stationary vehicles.
The distance to the vehicle ahead (in the same lane) is measured by a radar sensor. Your vehicle's speed is regulated by
acceleration and braking. The brakes may emit a sound when they are being modulated by the adaptive cruise control
system. This is normal.
WARNING
The brake pedal moves when the adaptive cruise control system modulates the brakes. Do not rest your foot under
the brake pedal.
The adaptive cruise control system is designed to follow the vehicle ahead of you in the same lane, at a set time
interval.
If the radar sensor has not detected a vehicle ahead, the system will then attempt to maintain the set speed. This is also
the case if the speed of the vehicle ahead exceeds the speed that you have set.
The adaptive cruise control system is designed to smoothly regulate speed. However, the driver must apply the brakes
in situations that require immediate braking. This applies when there are great differences in speed between vehicles,
or if the vehicle ahead brakes suddenly.
WARNING
Due to limitations in the radar sensor, braking may occur unexpectedly or not at all, see page 146
.
Adaptive cruise control can only be activated at speeds above 20 mph (30 km/h). If speed falls below 20 mph (30
km/h) or if engine speed (rpm) becomes too low, adaptive cruise control disengages and will no longer modulate the
brakes. In situations when adaptive cruise control cannot be activated Cruise Control Unavailable is shown in the
display, see page 149
.
WARNING
When adaptive cruise control disengages, the brakes will not be modulated automatically. The driver must assume
full control over the vehicle.
Warning light -driver braking required
Adaptive cruise control has a braking capacity that is equivalent to approximately 30% of the vehicle's total braking
capacity. In situations requiring more brake force than ACC can provide, if the driver does not apply the brakes, an
audible signal will sound and a red warning light will illuminate in the windshield.
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NOTE
The red warning light may be difficult to see in strong sunlight or when sunglasses are being worn.
WARNING
Cruise control only warns of vehicles detected by the radar sensor, see page 146
. In some cases there may be no
warning or the warning may be delayed. The driver should always apply the brakes when necessary.
Automatic deactivation
Adaptive cruise control is linked to other systems such as the stability and traction control system (DSTC). If any of
these systems are not functioning properly, adaptive cruise control is automatically deactivated.
In the event of automatic deactivation a signal will sound and the message Cruise Control Canceled is shown in the
display. The
146 04 Comfort and driving pleasure
Adaptive Cruise Control-ACC
driver must then intervene and adapt the vehicle's speed to the surrounding traffic. Automatic deactivation may be
caused if:
the vehicle's speed falls below 20 mph (30 km/h)
the wheels lose traction or if the anti-lock brake system is activated
brake temperature is high
engine speed (rpm) is too low
the radar sensor is obstructed by, for example, wet snow or rain.
The radar sensor and its limitations
The radar sensor is used both by the adaptive cruise control and the collision warning system. It is designed to detect
vehicles or larger vehicles driving in the same direction as your vehicle. The radar sensor does not detect pedestrians,
or oncoming, slow or stationary vehicles and objects. Warnings are not given and the brakes are not applied in such
cases.
WARNING
Accessories or other objects must not be installed in front of the grille.
Modification of the radar sensor could make its use illegal.
The radar sensor's capacity to detect vehicles ahead is impeded:
if the radar sensor is obstructed and cannot detect other vehicles, for example in heavy rain, or if snow or other
objects are obscuring the radar sensor.
NOTE
Keep the area in front of the radar sensor clean.
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Visual warning signal, collision risk
Sensor
The radar sensor detects vehicles ahead that are moving in the same direction as your vehicle. In the event of a
collision risk, you will be alerted by a red warning light and an audible warning signal.
If the risk of collision increases after the warning, brake support is activated.
The brake support prepares the brake system for rapid braking and the brakes are applied gently, which may be
noticeable. If the brake pedal is depressed quickly then braking is implemented with full brake function, even if the
force on the pedal is light.
151 04 Comfort and driving pleasure
Collision warning system (option)
The collision warning system is active at speeds above approximately 5 mph (7 km/h).
Limitations
The visual warning signal may be difficult to see in strong sunlight or when sunglasses are being worn. For this reason
always activate the audible warning signal in such conditions.
NOTE
The visual warning signal may be temporarily disengaged in the event of high passenger compartment temperature
due to strong sunlight, etc. If this occurs, the audible warning signal will be used, even if it has been deactivated in
the menu system.
Warnings may not appear if the distance to the vehicle ahead is very small or if steering wheel and pedal movements
are large, for example, due to a very active driving style.
The collision warning system uses the same radar sensors as adaptive cruise control. For more information on the radar
sensor and its limitations, see page 146
.
WARNING
In certain situations, the system cannot provide warnings, the warning may be delayed, or false warnings may be
given if traffic conditions make it impossible for the radar sensor to detect the vehicle ahead.
If no warning is given, no brake support is provided.
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The distance monitored behind the vehicle is approximately 5 ft (1.5 m). The signal comes from the rear speakers.
The system must be deactivated when towing a trailer, carrying bicycles in a rear-mounted carrier, etc, which could
trigger the rear park assist system's sensors.
NOTE
Rear park assist is deactivated automatically when towing a trailer if Volvo genuine trailer wiring is used.
Front park assist
The distance monitored in front of the vehicle is approximately 2.5 ft (0.8 m). The signal comes from the front
speakers.
It may not be possible to combine auxiliary headlights and front park assist since these lights could trigger the system's
sensors.
154 04 Comfort and driving pleasure
Park assist (option)
Faults in the system
If the information symbol illuminates and Park Assist syst Service required is shown on the information display, this
indicates that the system is not functioning properly and has been disengaged. Consult a Volvo retailer or authorized
Volvo service technician.
CAUTION
In certain circumstances, the park assist system may give unexpected warning signals that can be caused by external
sound sources that use the same ultrasound frequencies as the system. This may include such things as the horns of
other vehicles, wet tires on asphalt, pneumatic brakes, motorcycle exhaust pipes, etc. This does not indicate a fault in
the system.
Activating/deactivating
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Press the Park assist button on the center console to temporarily deactivate the system(s). The indicator light in the
button will go out when the system(s) have been deactivated.
If the vehicle is equipped with front and rear park assist, both systems will be deactivated by pressing the button.
Park assist will be automatically reactivated the next time the engine is started, or if the button is pressed (the indicator
light in the button will illuminate).
NOTE
Front park assist is disengaged automatically when the parking brake is applied.
Cleaning the sensors
The sensors must be cleaned regularly to ensure that they work properly. Clean them with water and a suitable car
washing detergent.
Ice and snow covering the sensors may cause incorrect warning signals.
155 04 Comfort and driving pleasure
Blind Spot Information System (option)
Introduction
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Refueling
or components, altering emission system components or location or removing components, and/or repeated use of
leaded fuel.
NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensors
The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module
that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is
continuously adjusted for efficient combustion to help reduce harmful emissions.
179 05 During your trip
Loading
Introduction
The load carrying capacity of your vehicle is determined by factors such as the number of passengers, the amount of
cargo, the weight of any accessories that may be installed, etc.
NOTE
To increase loading space, the rear seat backrests can be folded down, see page 80
.
The trunk lid can be opened via the button located on the lighting panel, see page 60.
Load the cargo in the trunk against the backrest.
Load wide cargo in the trunk on both sides of the rear seat split.
Unstable loads can be secured to the load anchoring eyelets with straps or web lashings to help keep them from
shifting.
WARNING
The vehicle's driving characteristics may change depending on the weight and distribution of the load.
A 44-pound (20 kg) object produces a force of 2,200 pounds (1,000 kg) in a head-on collision at 30 mph (50
km/h).
Loading the cargo area
Stop the engine and apply the parking brake when loading or unloading long objects. The gear selector can be knocked
out of position by long loads, which could set the vehicle in motion. To increase loading space, the rear seat backrests
can be folded down, see page 80
.
WARNING
Stop the engine, put the gear selector in P , and apply the parking brake when loading or unloading long objects.
The rear seat should not be loaded to a level higher than 2 in. (5 cm) below the upper edge of the rear side
windows. Objects placed higher than this level could impede the function of the Volvo Inflatable Curtain.
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