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Posted on Apr 01, 2010
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GPS (2008 Denali) stops working after 1+ hour of driving.

GPS stops working after 1+ hour of driving (after 70 to 90 miles of driving). It seems the system fails to read the DVD after 1+ hour of driving. Display shows an error message indicating to insert the map dvd. When DVD is ejected and reloaded, the same message appears. Problem disappears after the vehicle is parked overnight. Problem appears again the next day after 1+ hour of driving. Problem can't be replicated at the service dealership probably because they do not have time to drive the vehicle for 1+ hour.

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  • Expert 86 Answers
  • Posted on Apr 01, 2010
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Joined: Apr 01, 2010
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Drive the auto for 1 hour then take it to the dealer and have them check it out do not turn off the vehicle when you arrive leave someone in side until they can service you sittuation

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How many gallons per hour does this car lose?

hey
at the begging u should clarify how many gallon u used.
112 miles at 28 miles per gallon --> 4 gallons burned (112/28)
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