Localisation disturbed – GPS|iPhone|Apple CarPlay

[syy355]

Having this issue as well and wanted to chime in..

According to Reddit Carplay also uses compass information which may be off:
Does anyone know how to re-calibrate the compass on the E?

[miura88]

You try to go at 32kmh or under for set gps.

[syy355]

You try to go at 32kmh or under for set gps.

Thanks! Let me try that, curious where did you find this information?

[miura88]

my gps didn't work for a year and i couldn't find the solution and neither did honda, who passed me this official info for try

[syy355]

Unfortunately driving under 32kmh for ~5 minutes with the car navigation app in the foreground did not fix anything for me I tried this multiple times over the last few weeks.
Strangely there was a period of a few days where it worked well, and it always seems to have an accurate location at the start of the trip, and then losing accuracy a few minutes / ~1km in, perhaps as Carplay tries to switch from phone gps data to the car gps?

[EEEE]

When the issue occurs, I think it is something to do with the compass as mentioned. When it starts to go wrong, I notice that the arrow on the map tends to be pointing off at a tangent to the actual direction of travel on the road (should be pointing straight ahead).

I suspect that perhaps the car does not have a compass (but does have GPS), and relies on the phone sensor. Perhaps the phone sensor is being affected by the large electric currents between the battery and the motor , and after a while android auto just goes 'This data doesn't make any sense anymore'. It is hit and miss, most times it's OK, but occasionally it will start to lag behind and then get stuck - normally only a few minutes after use. Perhaps the phone orientation makes a difference too?

When it works, it works for the whole journey (aside from the normal connection/starting issue which is almost certainly a Xiaomi specific issue).

[londiniumperson]

I’m wondering if it’s a general phone issue and nothing related to the car.
My reasoning behind this is because on a recent drive from Newcastle to the South coast in another car (not our Honda e) both my iPhone and my son’s Nothing Phone lost the GPS signal a couple of times and zoomed off the route at so we had no idea of which direction to take at the next junction.

[hondaeboy]

I’m wondering if it’s a general phone issue and nothing related to the car.

I agree. I always assumed that the car's GPS was not used anyway, if you are using CarPlay, because aren't you running the apps all from your phone then? If you use the car's on-board Garmin navigation, I would assume it would use the car's GPS, but if you use your phone apps, I would think it would use the phone's GPS.

I did have a localisation problem for a little while, until I realised I hadn't given proper location permission to the navigation app in my phone (Android though). I had set it to "Allow location use while using the app", but it stopped updating the location as soon as I put the phone away or close the protective lid. I had to set it to "Allow location use all the time" to get the navigation app to function properly again.