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Old 07-30-2019, 12:04 PM   #1
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Join Date: Oct 2018
Location: Charleston
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Unhappy Issues with Garmin RV 770 Routing

I just received a new Garmin RV 770 and took it on a trip in the car (told the Garmin I was in truck with trailer) and did a trip of about 500 miles on roads I have traveled 100s of times so I am very familiar with them. As I read on this site before purchasing, several users commented that the Garmin could take you out of the way to get around 'perceived hazards'. We had the same experience numerous times on this trip and the Garmin even had us more than once avoiding good State Roads that it appeared to think had some hazard or another. Anyone figured out how to improve this? We have a 19 foot truck and a 27 foot trailer so I have our total length in as 46 feet with an 8 foot width and a 10.5 foot height. I can say I am very frustrated with the routing so far on this unit. Thanks for any pointers.

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Old 07-30-2019, 01:04 PM   #2
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Location: Saskatoon Sask Canada
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I have had many similar problems. Worst one is the Icefield Highway between Banff and Jasper.. it considers that a toll road and goes out of its way to make me get off of it..
My solution was to take it out of RV mode not the best solution but it works

2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
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Old 07-30-2019, 02:46 PM   #3
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Not sure about the Garmin but with the Soundstream using Navi gps you choose between fastest and easiest route settings. The only problem with the fastest setting is sometimes it gets carried away like when we were traveling from Upstate New York down to the Pocono mountains it had us exit the highway too soon and sent us down a seasonal road.
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Old 07-30-2019, 04:23 PM   #4
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Location: Ocean County
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I just installed the RV770, and took the first trip with it last weekend. I agree with the OP, it definitely can map some strange routes, and give strange warnings. I've had Garmins in my passenger vehicles for many years, so I'm use to it's normal operation, but this one has some quirks.

I usually pre-map my route the night before just to familiarize myself with the route, cities, etc., usually on Google maps, and check the roads, bridges, obstacles, etc.. When I got in and programed the route in the 770, it planned a completely different route, so I don't understand yet how it's computing...

Gonna have to play with the settings and see if it get better.

2019 Redhawk 24B

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Old 07-30-2019, 05:40 PM   #5
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I've posted a while ago about our GPS on "shortest" setting. It sent us over a mountain in PA during a monsoon, with 15* hills, and switchbacks. The "shortest" setting will never be used again, and I still need suggestions on how to get the DW's finger impressions out of the interior of our truck!
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Old 08-22-2019, 06:35 PM   #6
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We just returned from a trip to Williamsburg, Virginia and then Shenandoah. DW forgot to uncheck "avoid tolls" and so it tried to take us off the WV Turnpike. Other than that, had no issues. Sorry to hear others are having issues.
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Old 08-23-2019, 08:05 AM   #7
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Tailoring our settings is the major part to having our Garmin. The DW still uses her smarter phone. To often they will identify a different road to turn on, but will still get us there. Hers usually saves us 2 minutes and tells us of speed traps.


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