Volvo Car navigation system Specifications download pdf (Page 61)

Questions and answers

Q - The car's position on the map is

incorrect or jumps

A - The Global Positioning System (GPS)

indicates the car's position with an accuracy of

about 65 feet (20 meter). Accuracy may be even

less when driving on roads lying parallel to

another road, winding roads, roads on several

levels and also after driving a long distance

without making any distinct turns. Tall

buildings and mountains, tunnels, viaducts,

over/underpasses etc also have a negative affect

on the reception of GPS signals, which means

that the estimation of the car's position may not

be precise.

Q - VNS does not always calculate the

fastest/shortest route.

A - When calculating a route, distance, width of

road, type of road, number of right or left turns,

traffic circles etc are all taken into account

when calculating the best theoretical route.

Experience and local knowledge may, however,

lead to a more effective choice of route.

Q - The VNS system chooses toll roads,

freeways, and ferries even though I

have opted to avoid them.

A - When calculating routes over longer

distances, for technical reasons the system can

only use major roads. If you select NO for toll

roads, freeways, and ferries, they will be

avoided as much as possible, but will be used if

no other reasonable alternative is available.

Questions and answers

Q - After being transported, the car's

position on the map is incorrect.

A - If the car is transported, for example by

ferry or train, or in such a way as to impede the

reception of GPS signals, it can take up to 5

minutes to calculate the car's new position

correctly.

Q - The car's position on the map is

incorrect after the car battery has been

disconnected.

A - If power has been cut from the GPS antenna,

it can take more than 15 minutes for the GPS

signals to be received correctly and the car's

position to be calculated.

Q - The map image does not corre-

spond with actual conditions.

A - Factors such as the constant expansion and

rebuilding of the road network, new traffic

regulations constantly being introduced etc

mean that the digital map database is not always

complete. New maps are periodically

developed and point of interest information

updated. Further information is available from

your Volvo retailer.

Q - The scale of the map sometimes

changes.

A - The scale is affected by the speed of the car.

At speeds in excess of approximately 85 mph

(140 km/h), the largest degree of magnification

is 0.2 miles (250 meters). When speed is

reduced to 75 mph (120 km/h), the system can

once again show all degrees of magnification. If

no detailed map information is available, the

largest degree of magnification is 0.3 miles

(500 meters), regardless of speed.

Q - One or more menu options are not

available.

A - Go to System options and select Reset to

default to return to factory settings.

Q - The VNS system indicates the route

on which I am already driving even

though I select Calculate new route or

Detour.

A - The system cannot find a better alternative

to the current route.

Q - The car symbol on screen jumps

forward or spins.

A - The system may need a few seconds to

sense the position and movement of the car

before you drive off. Switch off the VNS

system and the ignition. Switch on the ignition

again and restart VNS, but remain at a standstill

for approximately 15-20 seconds before driving

off.

WARNING!

Always observe posted speed limits.

VNS P2w820us.book Page 60 Thursday, February 28, 2008 2:11 PM

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Volvo Car navigation system Specifications Page 61

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