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A few days ago my Nav asked for approval of a new privacy policy, so I assume there was a software update. Now for the past few days my nav is getting stuck. When I drive the position of the car does not move but the direction on the map does move. This only happens some of the time and can last for seconds to tens of minutes.
A few days ago my Nav asked for approval of a new privacy policy, so I assume there was a software update. Now for the past few days my nav is getting stuck. When I drive the position of the car does not move but the direction on the map does move. This only happens some of the time and can last for seconds to tens of minutes.
Anyone else see a similar problem?
I don't recall seeing this on my C8 on board nav system, but it has happened on my other vehicles, though rarely. There is a section in the manual about troubles with vehicle positioning in the Nav section of the manual. If none of those apply to your situation, and the problem persists, a trip to the dealer may be required.
Don't know if you are being sarcastic, or really asking, but its an option on 1LT so some of them will not have it. Its standard on 2 and 3LTs. And it works without an OnStar subscription. And it will work even in areas with spotty cellular service, because its map data comes from an on board data base (an SD card). Nav apps on your phone rely on a cellular connection to download maps. They will download enough of the map related to your location or route to survive temporary loss of a cellular connection, but they can (and mine have) run into trouble in areas where cell service is not available for a while. Because the phone based apps rely on downloaded maps, they almost always more up to date than the on board maps.
From reading the owners manual, the service manual, and the onstar site, it appears that if you have the right subscription with OnStar the on board map data can be updated over the air. but it will still be stored on the SD card, and available even in locations without cellular service. You still need the GPS signal for location data.
Yes. One that works quite well, even without cell service.
OP. Haven't experienced this.
I agree.... it works pretty well even the voice application. And the screen is very nice. To the OP I use mine around town....... and never had this issue.
I haven't ever used the factory nav. Waze has so many more advantages. I have not yet been in a place without cell service.
They are around. Remote locations, mountainous regions, regions where there is radio telescope operation. Systems that rely on a cellular connection for the map will often have enough of the map loaded to get through a region. But, if you try to start a trip there, or if you need to re-route, you can run into trouble. I have encountered this on trips to Cass WV, Green Bank WV. These are both mountainous regions, and there is a radio telescope in Green Bank, so cell towers are restricted. I have also encountered it on trips between Maryland and Black Hill SD, as well as trips traveling from SD to Bowling Green, Ky. Miles and miles of roads in the middle of nowhere with spotty service. Here are examples of coverage in Cass and Green Bank.
I don't use WAZE because I can't turn it off once started. .. Yes, I can change the screen to nav, google maps, or whatever, but WAZE is still running in the background, giving audio advice,etc. .. The only way to stop it is to access the phone itself and either kill ANDROID AUTO, so that the app can then be closed from the phone screen, or use the phone menu, find the APPS settings, find WAZE, and FORCE STOP. ....
If I try to run WAZE on the phone screen, Android Auto takes over and again, no way to kill the app. ..
In my cars without nav, I do use WAZE, .. I know some like it better than Google Maps and others prefer GM, but I like C8 nav better than either of those two.
A few days ago my Nav asked for approval of a new privacy policy, so I assume there was a software update. Now for the past few days my nav is getting stuck. When I drive the position of the car does not move but the direction on the map does move. This only happens some of the time and can last for seconds to tens of minutes.
Anyone else see a similar problem?
Not experienced that issue. Use mine all the time, mostly to see the road MPH speed limit in HUD! I also like directions showing on HUD as you approach a required turn. Need to look nowhere else and can keep my eyes on the road. WAZ is useless in our rural area, where I mostly drive.
The only issue I had even after I recently paid for a updated NAV SD Card, is in the pic below that started one year ago when my Free XM radio ended. I switched to the USB thumb drive with ~1300 songs I had used on my two C7s. I "think" I have finally solved, as been over a month and have not seen it pop up! BUT I'll wait another month before posting to be sure!
When I installed my USB Thumb Drive with ~1300 songs this error popped up about a 1/3 of my starts. Followed a member's suggestion and reduced to ~15% of starts. Believe I may have found the solution, which GM says is a software anomaly in the only Bulletin on the subject. It was actually for other GM vehicles with the same infotainment system - not the C8.
The solution (and I tried many) is related to the USB Thumb Drive. As I said, will wait another month to be sure it's cured before posting.
Don't know if you are being sarcastic, or really asking, but its an option on 1LT so some of them will not have it. Its standard on 2 and 3LTs. And it works without an OnStar subscription. And it will work even in areas with spotty cellular service, because its map data comes from an on board data base (an SD card). Nav apps on your phone rely on a cellular connection to download maps. They will download enough of the map related to your location or route to survive temporary loss of a cellular connection, but they can (and mine have) run into trouble in areas where cell service is not available for a while. Because the phone based apps rely on downloaded maps, they almost always more up to date than the on board maps.
From reading the owners manual, the service manual, and the onstar site, it appears that if you have the right subscription with OnStar the on board map data can be updated over the air. but it will still be stored on the SD card, and available even in locations without cellular service. You still need the GPS signal for location data.
The part I bolded isn't correct. The data on the SD card only gets updated if you buy the update SD card. IF you pay OnStar for connected services, and use OnStar to generate a route, that data is downloaded for the single route, but not saved. If, for example, you download directions from OnStar and it routes you on a new road that isn't stored on the SD card, then later use the onboard Nav to go to the same destination, it won't use that new road.
I had it happen just before I was leaving for Denver. I was able to fix it by rebooting the car i.e, , disconnect the battery. It was as if the GPS wasn't working, or the signal wasn't getting to the Nav system. Haven't had it since, that was July 8.
I can download maps to my phone, and it works fine without cell service. And the voice recognition actually works, unlike GM's
I've found that when using Google Maps in Android Auto that I can't use voice commands to navigate to a destination if I don't have cell service. It gives me a Google Assistant not available error or something like that even if the destination has been downloaded.
The part I bolded isn't correct. The data on the SD card only gets updated if you buy the update SD card. IF you pay OnStar for connected services, and use OnStar to generate a route, that data is downloaded for the single route, but not saved. If, for example, you download directions from OnStar and it routes you on a new road that isn't stored on the SD card, then later use the onboard Nav to go to the same destination, it won't use that new road.
Ok. I knew that if you actually did a route via the OnStar, the so called turn by turn directions, that it would download the data just for the trip. But the wording in the manual, that says "The map data in the vehicle is the most up-to-date information available when the vehicle was produced. The map data is updated periodically, provided that the map information has changed and the vehicle has a relevant service plan." sounded like a different process, that happens "periodically", rather then in response to a trip. Meaning it would not necessarily download to the SD card when a trip was entered, but might download periodically. I don't have any other supporting evidence - I was just going by that wording.
See post 17 where the Service Manual appears to discuss periodic updates of Map data under an SD card heading.
Last edited by Andybump; Sep 24, 2022 at 07:29 AM.
The part I bolded isn't correct. The data on the SD card only gets updated if you buy the update SD card. IF you pay OnStar for connected services, and use OnStar to generate a route, that data is downloaded for the single route, but not saved. If, for example, you download directions from OnStar and it routes you on a new road that isn't stored on the SD card, then later use the onboard Nav to go to the same destination, it won't use that new road.
Adding to post 16 - I also read these statements in the 2020 Service Manual that also sounded like a separate, and periodic process, that did update data on the SD card. The two both sound like generic statements because of the mention of 2018, but they are consistent with the statement in the 2023 Owners Manual that talks about periodic map data updates. Still, I have not tested it, nor can I, because I do not have an OnStar subscription.
I still prefer using the on board navigation. It works flawlessly between the systems built into the car. Here in AZ there are many cellular dead spots when driving in rural areas, Thus Waze or Gmaps drop out when cell service is lost, until you get back into cell coverage. Those products must have cell service to operate whereas GM maps are pure GPS.
A few days ago my Nav asked for approval of a new privacy policy, so I assume there was a software update. Now for the past few days my nav is getting stuck. When I drive the position of the car does not move but the direction on the map does move. This only happens some of the time and can last for seconds to tens of minutes.
Anyone else see a similar problem?
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Don't know if you are being sarcastic, or really asking, but its an option on 1LT so some of them will not have it. Its standard on 2 and 3LTs. And it works without an OnStar subscription. And it will work even in areas with spotty cellular service, because its map data comes from an on board data base (an SD card). Nav apps on your phone rely on a cellular connection to download maps. They will download enough of the map related to your location or route to survive temporary loss of a cellular connection, but they can (and mine have) run into trouble in areas where cell service is not available for a while. Because the phone based apps rely on downloaded maps, they almost always more up to date than the on board maps.
From reading the owners manual, the service manual, and the onstar site, it appears that if you have the right subscription with OnStar the on board map data can be updated over the air. but it will still be stored on the SD card, and available even in locations without cellular service. You still need the GPS signal for location data.
When I plan to travel to a location far away, I usually do an offline map download. For about 500MB you can get most of the eastern seaboard.
Navigation Issue
