Garmin Camper 770 Speed limit errors

Apr 9, 2018
49
39
Harrogate. N Yorks
Funster No
53,259
MH
Devon Van Conversion
Exp
Since 2017
Hi,
I'm using a Garmin Camper 770 and am generally very happy with it but occasionally it will show a lower speed limit than that signed. In the screen shot below the road was a normal A road with a 60mph limit but the satnav is showing a 50mph limit with a motorhome icon. I've set up a profile with 3.5 ton weight which shouldn't affect the speed limit. I've also tried lowering it to 2.8 ton in case it was applying the 3.05 ton unladen weight rule.
Has anyone else had a similar issue and if so have you found a cure.




Reduced Limit.png
 
Feb 9, 2008
5,703
7,582
Corby, Northants
Funster No
1,455
MH
Coach Built
Exp
Since 2007
I too see this but mostly when in Europe and I suspect after reducing speed of French roads this is the likely cause after Garmin made some software adjustments.

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Jul 24, 2019
39
111
Lincs
Funster No
62,668
MH
Rapido 8096df
Exp
Always learning
I have the same sat nav. The weight was programmed at 3700kg and it would take all the normal unrestricted routes frequently ignoring the 3.5t max signs in Europe and show speed limits appropriate for a 3.5t vehicle.
I just had the m/h uprated to 4000kg and reprogrammed the sat nav accordingly. It now recognises that some routes are unsuitable and shows the correct speed limits 🤪
 

Gellyneck

LIFE MEMBER
Jun 5, 2014
4,097
3,916
Scotland
Funster No
31,836
MH
C Class
Exp
More than toes wet now!
When we first got our 760 Camper (not 770) we did a couple of trial runs with the weight set at over 7.5t and increased dimensions to try and ensure it would stick to "larger" roads however soon changed that as it was giving us HGV speed limit restrictions, etc.
Having changed it to reflect actual weights and dimensions the only time I've seen "incorrect" speed limits is when these have recently been changed (and reasonably frequently when there has been increased limits due to recently completed or decreased limits due to newly started road works).

Would the speed limit on that road not be 50mph for a 3.5t motorhome but why it shows 50mph for a weight of 2.8t??? What does it show for the car profile?
 
OP
Twoflower
Apr 9, 2018
49
39
Harrogate. N Yorks
Funster No
53,259
MH
Devon Van Conversion
Exp
Since 2017
Hi thanks for the comments. The maps and software are all up to date. I’ve emailed Garmin but they haven’t come up with anything useful. The limit on that road is signed as 60 so it should be the same for a Motorhome as long as the unladened weight is below 3050kg which mine is.

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May 31, 2015
5,374
8,145
Cornwall
Funster No
36,638
MH
Hymer B544
Exp
An expensive experience.. still..!
When the map update was collated there may have been road works or restrictions along that road.....
Sometimes on mine it shows speed cameras when there is not but you can see that there has been road works along the road....

The maps information was correct at the time it was collected...
 
Nov 23, 2011
309
180
durham
Funster No
18,991
MH
Lowline
Exp
since 2006
Do not have a Garmin but on our Snooper it showed similar incorrect speed limits. From Newark to Norwich using the A17 and A47. Where speed limits of 60 mph were displayed the Sat Nav was showing 50mph. On dual carriageways rated at 70mph the SN was showing 70 also. Sat Nav was set for under 3500kgs. All maps and software are up to date. Will give Snooper a ring next week.
 
Aug 10, 2013
1,679
1,483
Vienne, France
Funster No
27,421
MH
Globecar Summit 640
Exp
Since 2014
Mine did the same (incorrectly) in France when set for a motorhome of 3500 kg GVW. It would show a reduced speed limit along with the motorhome symbol when the speed limit should have been the same as the displayed limit.

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OP
Twoflower
Apr 9, 2018
49
39
Harrogate. N Yorks
Funster No
53,259
MH
Devon Van Conversion
Exp
Since 2017
I've come to the conclusion it's probably errors in the database Garmin use to collect road speed limit info. On one stretch of road with a 40mph limit the sat nav changed to 30mph partway along with no change to signage. As Yorik said I don't rely on the sat nav but watch use the signs - it's just a little quirk in the system I guess Ill have to get used to.
 
Jul 4, 2017
191
318
Scotland
Funster No
49,338
MH
Coachbuilt
Exp
Since 2000
We had the same problem with our Snooper. Nearly a year of email contact and it was unresolved, so we bought the Garmin. Same problem on A roads. The odd thing is, it reverts to the correct limit of 60mph when going round roundabouts!

As Yorik said, ignore it and stick to signed limits.

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Apr 29, 2009
950
369
West Sussex
Funster No
6,505
MH
Pilote Explorateur
Exp
since 2008
Our Garmin 560dezl has a few roads near us which it thinks I am limited to 30mph on rather than the 50mph signed. I drive at 50mph with the Garmin bleeping at me. I am unable to update the maps and even if I could I would be loathe to as the maps sometimes freeze and Garmin have said they cant repair it but will offer me a discount on the 760/770. Not sure if I want to do that reading some of the issues.
 
Oct 29, 2009
1,708
1,847
Derby
Funster No
9,111
MH
Dethleffs
Exp
Since 2006
Random incorrect limits are usually as a result of previous roadworks at the location and delays in that information being updated in the mapping.

Ian
 
Oct 2, 2008
3,179
4,525
J10 M40
Funster No
4,247
MH
Bucher Duro 6x6 motorhome
Exp
since 1968
I have found quite often its due to road being derated and the database hasn't caught up , eg 30 into 40 , where 40 has been dropped to extension of 30 zone . similar with nsl being dropped to 50 road stretch.

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Jul 30, 2017
59
54
Romney Marsh (St Mary's Bay)
Funster No
49,714
MH
Autosleeper Inca
Exp
Since 2008
I have a Garmin Camper 660, it insisted on downloading a complete update last Friday and all went to rats. All I got when I turned the satnav on was a warning that no maps were installed, despite the fact that I had spent five hours after the installation of the new Garmin Express re-installing them. I had to clear the Garmin Express from my laptop and then re-boot the laptop and then re-install all the maps again. Hope this will help if anybody else is having a similar problem.

Bernie
 
Jun 30, 2013
5,033
7,730
Cotes d'armor, France
Funster No
26,730
MH
Burstner Harmony TI 736 G
Exp
Since 1987
I updated the software in our 770 a few days ago and travelled home through a France yesterday. We were on a road with a speed limit of 130Kph we can do 110.
I was overtaking a line of trucks and watched my speed go up to about 100. The truck on my inside seemed to start speeding up but I didn’t remember increasing my speed.
The speed warning box on the satnav turned red and it pinged just as I spotted a speed camera on the right verge. I looked at the satnav speed and it showed 137kph!
I braked and it went down to 122 as I passed the camera, but it didn’t flash.
I was pretty sure I hadn’t gone above 110 so checked the video from the dash cam last night when I got home.
It shows me overtaking the truck at 64mph (103kph) and slowing to 58 as I approach the camera.

So, I don’t know if this is a one off caused by outside forces, or a result of the software update, but it performed fine for the next couple of hours.

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Apr 21, 2008
212
122
Wootton bedford
Funster No
2,239
MH
A class
Exp
1995
Hi,
I'm using a Garmin Camper 770 and am generally very happy with it but occasionally it will show a lower speed limit than that signed. In the screen shot below the road was a normal A road with a 60mph limit but the satnav is showing a 50mph limit with a motorhome icon. I've set up a profile with 3.5 ton weight which shouldn't affect the speed limit. I've also tried lowering it to 2.8 ton in case it was applying the 3.05 ton unladen weight rule.
Has anyone else had a similar issue and if so have you found a cure.




View attachment 320593
If you have a motor home and not a car then you should be doing 50 on
 
Oct 19, 2014
1,472
3,847
Nth East Lincs
Funster No
33,882
MH
Knaus Sky I Plus 650LG
Exp
First MoHo - April 2015
I find that if you are, for example...
On a motorway... and pass under or over an A road... The Sat nav will pick up the lower A road limit for a time....
 
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