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Taking a Detour
Before you can take a detour, you
must be navigating a route.
1. Touch
to return to the Main
menu.
2. Touch Detour.
If the route you are currently taking is
the only reasonable option, the device
might not calculate a detour.
Orienting the Screen
Rotate your device to view in
horizontal (landscape) or vertical
(portrait) mode.
8
Adjusting the Screen
Brightness
1. Touch Tools > Settings > Display
> Brightness.
2. Touch and move the scroll bar to
adjust screen brightness.
About Traffic
The FM Traffic Message Channel
(TMC) traffic receiver is available in
retail shops. It is built into the vehicle
power cable.
The traffic receiver and the nüvi must
be in data range of an FM station
transmitting TMC data to receive
traffic information. You do not need
to activate the subscription included
with your FM traffic receiver.
If a severe traffic delay occurs on
your route, the device automatically
recalculates the route. The traffic icon
(
) changes color to indicate the
nüvi 3790 Quick Start Manual
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