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Do not cover the GPS aerial with spray
paint or car wax, because this may block
the reception of GPS signals. Snow
buildup can also degrade the signals, so
keep the aerial clear.
NOTE
If a GPS signal has not been received for a
long time, your vehicle’s actual position
and the current position mark on the map
may diverge considerably or may not be
updated. In such case, once GPS reception
is restored, accuracy will be recovered.
Conditions likely to cause noticeable
positioning errors
For various reasons, such as the state of the
road you are travelling on and the
reception status of the GPS signal, the
actual position of your vehicle may differ
from the position displayed on the map
screen.
If you make a slight turn.
If there is a parallel road.
If there is another road very nearby,
such as in the case of an elevated
motorway.
If you take a recently opened road that
is not on the map.
If you drive in zigzags.
If the road has a series of hairpin
bends.
If there is a loop or similar road
configuration.
If you take a ferry.
If you are driving on a long, straight
road or a gently curving road.
If you are on a steep mountain road
with many height changes.
If you enter or exit a multi-storey car
park or similar structure using a spiral
ramp.
