Volvo 2008 S80 Owner's Manual download pdf (Page 187)

04 Comfort and driving pleasure

City Safety™

04

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187

If the difference in speed between the vehicles

is greater than 15 km/h then City Safety™ may

not prevent the collision on its own. To obtain

full brake force, the driver must depress the

brake pedal. This could then make it possible

to prevent a collision, even at speed differen-

ces above 15 km/h.

When the function is activated and brakes, the

instrument panel display shows a message to

the effect that the function is/has been active.

NOTE

The brake lights come on when City

Safety™ brakes the car.

Operation

NOTE

The City Safety™ function is always ena-

bled after the engine has been started via

key position I and II (see page 79 on key

positions).

On and Off

In certain situations, it may advisable to disable

City Safety™, e.g. where leafy branches could

sweep over the bonnet and/or windscreen.

After starting the engine City Safety™ can be

deactivated as follows:

Using MY CAR on the centre console display

screen with its menu system, search and locate

Settings

Car settings Driving support

systems

City Safety. Select the Off option.

For more information on the menu system MY

CAR, see page 142).

However, the function will be enabled the next

time the engine is started, regardless of

whether the system was enabled or disabled

when the engine was switched off.

WARNING

The laser sensor also transmits laser light

when City Safety™ is disabled manually.

To enable City Safety™ again:

•

Follow the same procedure as for disa-

bling, but select the

On option.

Limitations

The sensor in City Safety™ is designed to

detect cars and other large vehicles in front of

the car irrespective of whether it is day or night.

However, the sensor has limitations and has

poorer functionality in e.g. heavy snowfall or

rain, dense fog, dust storms or snow flurries.

Mist, dirt, ice or snow on the windscreen may

disrupt the function.

Low-hanging objects, e.g. a flag/pennant for

projecting load, or accessories such as auxili-

ary lamps and bull bars that are higher than the

bonnet limit the function.

The infrared light from the sensor in City

Safety™ measures how the light is reflected.

The sensor cannot detect objects with low

reflection capacity. The rear sections of the

vehicle generally reflect the light sufficiently

thanks to the number plate and rear light reflec-

tors.

On slippery road surfaces the braking distance

is extended, which may reduce the capacity of

City Safety™ to avoid a collision. In such sit-

uations the ABS and DSTC systems will pro-

vide best possible braking force with main-

tained stability.

When the car is reversing City Safety™ cannot

be activated.

City Safety™ is not activated at low speeds -

under 4 km/h, which is why the system does

not intervene in situations where a vehicle in

front is being approached very slowly, e.g.

when parking.

Driver commands are always prioritised, which

is why City Safety™ does not intervene in sit-

uations where the driver is steering, braking or

accelerating in a clear manner, even if a colli-

sion is unavoidable.

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