Navigation Problem
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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Navigation Problem in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I just installed a factory navigation in my CTS and the GPS screen is showing the Los Angeles area. My ...
  1. #1
    1SICKCADDY's Avatar
    1SICKCADDY is offline Cadillac Owners Member
    Automobile(s): '03 CADILLAC CTS
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    May 2008
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    Navigation Problem

    I just installed a factory navigation in my CTS and the GPS screen is showing the Los Angeles area. My question is how do I set the GPS screen to my area?

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  3. #2
    ewill3rd is offline Cadillac Technician
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    Re: Navigation Problem

    Those units default to a location just outside of LAX when they are initialized.
    If you made all your connections properly all you need to do is drive the car.

    You can check the GPS data to see if you are tracking satellites, if some are green you should be good.
    I have heard several times that if the VSS signal is not being delivered properly to the unit that it will stay in one location and the icon will just rotate as you turn. If this is the case recheck your wiring to the VSS circuit.

  4. #3
    odysseus's Avatar
    odysseus is offline Cadillac Owners Connoisseur
    Automobile(s): 2003 CTS Manual Trans., '93 STS
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    Re: Navigation Problem

    Yup. Make sure you installed the VSS wire correctly, or you'll just spin in circles on the screen. It takes 6 minutes of operation the Nav (or any GPS) to download the almanac from the GPS satellites after a cold start. There is also a menu item to move your home location which will expidite the locating of satellites. It takes 3 satellites in view to get a 2D position fix. If you are seeing satellites (there is also a menu item for that), then eventually it will move to your location.

  5. #4
    1SICKCADDY's Avatar
    1SICKCADDY is offline Cadillac Owners Member
    Automobile(s): '03 CADILLAC CTS
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    Thread Starter

    Re: Navigation Problem

    So the GPS will automatically set itself to my surroundings or do I have to cold start it? And if so how do I cold start it.

  6. #5
    odysseus's Avatar
    odysseus is offline Cadillac Owners Connoisseur
    Automobile(s): 2003 CTS Manual Trans., '93 STS
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    May 2004
    Location
    Yorktown, VA
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    3,035

    Re: Navigation Problem

    The first time it's powered on, make sure you are in the open, and leave it on for at least 6 minutes. Once it downloads the almanac (spacecraft orbit positions) it stores in non-volatile memory. From then on out you have a 'warm start' which only takes a few seconds to lock on, since it knows where the satellites are, and which ones to look for.

    Check the 'GPS Info' screen that shows how many satellites you've locked on. If you get zero (all grey, no green), I'd suspect the antenna connection at the back of the Nav. The wire could get pinched, or the connector may not be making contact.

  7. #6
    1SICKCADDY's Avatar
    1SICKCADDY is offline Cadillac Owners Member
    Automobile(s): '03 CADILLAC CTS
    Join Date
    May 2008
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    California
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    31
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    Thread Starter

    Re: Navigation Problem

    I will try that thank you guys for the information.

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