[boeing247]

Hi Everyone,
I just bought a 2012 LTZ and have a question about the Nav System.
On the Nav map, there are five colors, red, yellow, blue, brown and white, that are used to identify roads.
No one at GM seems to know what the colors represent!
The dealer doesn't know, I called customer service, got someone in India, "Maria" (right!), and she said there's no info and contact the dealer.
The colors are not related to traffic info and the same road can be a different color, one time blue, then red, etc. Some roads can be red up to a point, then change to brown, etc.
Obviously the colors mean something or they wouldn't have spent the time programing them.
Thanks,
Jon

 

[sumr616]

Jon - It probably has something to do with the "classification" of the road. Like, is the road an FM road, and where a street turns into a "business" road, and then into a "highway?" Maybe...I don't know, I don't have the Nav. Other GPS's use different colors for different kinds of roads too. Like on the TomTom, blue will be a highway, white is a toll road and yellow is a regular ol' street (something like that).

 

[boeing247]

It's strange that there's no mention of the colors in the manual.
What I've discovered so far is:
Interstates are either blue or red, mostly red.
Main state hiways are either red or yellow.
Secondary roads are either red, yellow or brown.
Streets are either brown or white.
I live in northern New Jersey, not sure if that has any effect.
Jon

 

[hoorah]

I have a seperate book for my nav - 11 terrain...: Traffic Flow Status — Enables or
disables the green, yellow, red and
black arrows that display beside the
roads and shows the traffic flow or
extent of a traffic event.
. Black indicates a closed road
segment
. Red indicates significantly
impaired traffic flow with average
speed of less than 40 km
(25 mph).
. Yellow indicates slightly impaired
traffic flow with average speed
between 40 km and 73 km
(25 and 45 mph).
. Green indicates normal traffic
flow with average speed above
73 km (45 mph).

 

[boeing247]

Hi,
The road colors has nothing to do with the traffic colors.
The traffic colors, indicating traffic flow, are placed along side the road, not "on" the road.
These colors are placed "on" the road.
I'm still amazed that no one knows what the colors represent, either the public or GM.
Why would GM go to the trouble to program these colors and not tell their customers what they mean.
Oh well.....