Appendix
Appendix
When positioning by GPS is impossible
!If signals cannot be received from more than two GPS satellites, GPS positioning does not take place.
!In some driving conditions, signals from GPS satellites may not reach your vehicle. In this case, it is impossible for the system to use GPS positioning.
In tunnels or en- | Under elevated |
closed parking | roads or similar |
garages | structures |
When driving | When driving through |
among high build- | a dense forest or tall |
ings | trees |
!If a car phone or cellular phone is used near this product, GPS reception may be lost temporarily.
!Do not cover this product with spray paint or vehicle wax, because this may block the
reception of GPS signals.
pIf a GPS signal have 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 up- dated. In such case, once GPS reception is restored, accuracy will be recovered.
your vehicle may differ from the position dis- played on the map screen.
!If you make a shallow turn.
!If there is a parallel road.
!If there is another road very nearby, such as in the case of an elevated freeway.
!If you take a recently opened road that is not on the map.
!If you drive in zigzags.
Conditions likely to cause noticeable positioning errors
For various reasons, such as the state of the road you are traveling on and the reception status of the GPS signal, the actual position of
