Navigation SD Card Error
Race Director
Joined: Aug 2016
Posts: 12,751
Likes: 10,184
From: Garden Valley CA
If you get a car with NAV/PDR the NAV card will come with the car. If you get a 1LT without NAV/PDR you can put a standard SD card (like the one for the PDR) in the slot and use it for music (at least that's what has been posted on the forum).
Last edited by RKCRLR; Apr 3, 2021 at 11:41 AM.
Instructor
Joined: Sep 2019
Posts: 141
Likes: 49
From: CT
I was receiving the Nav SD Card Error at start up about 90% of the time. Read this thread and when I removed the USB thumb drive I was using for music, the error has not returned since. I plug it in a short while after start up and all works well. Your theory is spot on. I hope they come up with some type of fix.
Last edited by Capt. Obvious; Mar 21, 2021 at 08:30 PM. Reason: correction
Instructor
Joined: Feb 2020
Posts: 100
Likes: 142
Brining up an old topic. I've never had a USB drive inserted for music but I do occasionally get the SD Card Removed error. I've removed, reinstalled, and cleaned the card. No luck. It doesn't happen all of the time. I also get the message confirming the format of the SD card each time the car starts (when the removal error doesn't happen). Going in for 1st service on Monday and will ask.
Le Mans Master
Joined: Dec 1999
Posts: 6,516
Likes: 4,840
From: One Hour From Boston!
I have an Apple iPod Touch connected to my console’s data port, loaded with music encoded with ALAC (Apple Lossless Audio Codec) since NOV 2020 and I’ve never had that error, not even once. In addition, I also have the CPLAY2Air adapter also plugged into the console’s data port. Both devices (and built-in NAV) all boot up perfectly when the car starts. No errors, no delays.
Instructor
Joined: Mar 2015
Posts: 110
Likes: 71
I have exactly the same issue, always get the initialize confirmation box on startup, and once got the "sd card removed" error. Took it into the deal and they said nothing was wrong. And I have NOTHING else plugged into the USB
Last edited by stepheng; Apr 3, 2021 at 04:01 PM.
Pro
Joined: Sep 2019
Posts: 707
Likes: 598
From: Seattle, WA
I have an Apple iPod Touch connected to my console’s data port, loaded with music encoded with ALAC (Apple Lossless Audio Codec) since NOV 2020 and I’ve never had that error, not even once. In addition, I also have the CPLAY2Air adapter also plugged into the console’s data port. Both devices (and built-in NAV) all boot up perfectly when the car starts. No errors, no delays.
I was receiving the Nav SD Card Error at start up about 90% of the time. Read this thread and when I removed the USB thumb drive I was using for music, the error has not returned since. I plug it in a short while after start up and all works well. Your theory is spot on. I hope they come up with some type of fix.
I have experienced the same Nav SD card error multiple times. I have a mini 512Gb USB drive (Amazon.com: SanDisk 512GB Ultra Fit USB 3.1 Flash Drive - SDCZ430-512G-G46: Computers & Accessories) full with FLAC files (average 600kbps). Contention on a common bus seems the most likely culprit. The error occurs even when I'm not streaming from the USB drive. Once the IVI system boots and finds a USB device with music it initiates a rescan of the entire drive pulling the embedded ID3 tags from each file to build its metadata database. At the same time it tries to read the nav SD card as part of the nav boot sequence maxing out the bus, and possibly the IVI CPU. I think that there is a software fix that GM could develop and push to the cars.
Here is my suggestion for GM:
1. Add an option in the settings menu to toggle between auto and manual rebuild of the music metadata database for connected flash drives only (not needed for phones), and default it to auto. That way all of us with larger music libraries that don't change often can have the database built once and then skip the rebuild every time the car starts. This also eliminates the frustration of it taking >15 minuets of driving before being able to search by metadata tag.
2. As an alternative: on boot compare the name/type/size of the flash drive found on the bus to the name/type/size of that connected when the bus was last active. If it is different kick off a rebuild after a minute or two (to allow nav and other processes to fully initialize). If it is the same then use the previously build database and after a few minutes begin a low priority background process to compare the existing metadata database with the USB drive updating the database as needed. This could be accelerated by comparing file write timestamps.
If I had access to the code, I'd make the changes. So how about it GM, it would be a great way to demonstrate listening to customers and the value of the OTA system that you have implemented?
Here is my suggestion for GM:
1. Add an option in the settings menu to toggle between auto and manual rebuild of the music metadata database for connected flash drives only (not needed for phones), and default it to auto. That way all of us with larger music libraries that don't change often can have the database built once and then skip the rebuild every time the car starts. This also eliminates the frustration of it taking >15 minuets of driving before being able to search by metadata tag.
2. As an alternative: on boot compare the name/type/size of the flash drive found on the bus to the name/type/size of that connected when the bus was last active. If it is different kick off a rebuild after a minute or two (to allow nav and other processes to fully initialize). If it is the same then use the previously build database and after a few minutes begin a low priority background process to compare the existing metadata database with the USB drive updating the database as needed. This could be accelerated by comparing file write timestamps.
If I had access to the code, I'd make the changes. So how about it GM, it would be a great way to demonstrate listening to customers and the value of the OTA system that you have implemented?
- Nav SD card not recognized by the system;
- Nav SD error pops up at the car start up;
- Nav error message popes up when FLAC was on the USB;
- Nav error message pops up when high bit rate music was playing due to possible data rate bandwidth contention;
- Large music library on USB causing the system to re-indexing every time the car starts;
Seems to me that we need to narrow down a bit further exactly when certain errors happen, so we can know the repro steps for these issues...
- Is there an issue of what type of SD card is required for using with Nav system? - the owner manual mentioned the requirements for the PDR but not the Nav SD. We assume it's the same, but one of the troubleshooting steps is to confirm this by formatting it properly, or, just as a test, intentionally formatting it in different format and plug it to see what happens.
- Does it make any difference that the Nav SD card is formatted and with the map on it, or if it's just an empty card without the map data? We don't know what exactly is required, and that's probably something we need to be confirmed with the dealer or GM, since no info on the owner's manual about this;
- Does the audio program have any issues playing FLAC? When I was reading the earlier post, I was thinking that maybe the audio program has an issue of playing other format music such as FLAC/ALAC, but Dave's post above confirms that there's no issue in playing ALAC at least, so does the audio program only have issue with FLAC? - be great if we can hear from more people who ever played FLAC music as a way to confirm or deny this.
- Or, is it just the high bit rate causing problem? Dave's ALAC example, plus other folks and my own experiences in playing high bit rate mp3 music, seems to suggest high bit rate is not an issue.
- Does high bit rate music has contention with the Nav system on the data bus? If so, it would be nice if we can confirm the repro steps and music file bit rate. But it doesn't seem to be, based on a few folks reporting, and my own experience as well (I play high bit mp3 music from USB all the time and I have never experienced Nav error messages);
- Large music library on USB causing re-indixing, this bug doesn't seem to be wide spread. I have a very large USB, 256GB, with a huge music library of 1300+ music on it, and it is plugged into C8's USB port all the time, and it was only index once when I first plugged in, and now every time I start the car, it's never been re-indexed, and I can start playing the USB music right away without any issue. So, it would be interesting to find out what caused that bug in the audio program to surface to force the re-indexing, if someone can report more details on the USB that has run into the problem: USB brand, what's the capacity, how it was formatted, what's the file transfer size used during formatting, how many music files are on the USB, how many folders are on the USB, and what are the file format if it has a mix of mp3 files with other files such as FLACs, and what are the bit rate of the music, etc.
Race Director
Joined: Aug 2016
Posts: 12,751
Likes: 10,184
From: Garden Valley CA
Seems to me that we need to narrow down a bit further exactly when certain errors happen, so we can know the repro steps for these issues...
- Is there an issue of what type of SD card is required for using with Nav system? - the owner manual mentioned the requirements for the PDR but not the Nav SD. We assume it's the same, but one of the troubleshooting steps is to confirm this by formatting it properly, or, just as a test, intentionally formatting it in different format and plug it to see what happens.
- Does it make any difference that the Nav SD card is formatted and with the map on it, or if it's just an empty card without the map data? We don't know what exactly is required, and that's probably something we need to be confirmed with the dealer or GM, since no info on the owner's manual about this
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E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,914
Likes: 12,327
From: NE South Carolina
FWIW Old Thread but useful to me! For the last couple of months was occasionally getting message on the right side of the main display, at start that said SD Card removed, which I had to dismiss.. Thought it was referring to the PDR Card. Reinserted THAT SD Card a few times and message went away. Message came back so cleaned the contacts with alcohol! Still would get occasionally (after reading these posts that was a radium chance as I was messing with the WRONG SD Card!) In fact the dealer tech last week when doing the oil and DCT filter change said I saw an SD Card missing message. I wrote it off and said I get that occasionally. I really don't look at the PDR info often so thought no big deal.
Then today saw I was not getting speed limits in HUD. Thought strange. Pressed the NAV button (which I don't use often) to see if they were there. Then as others have posted the pic, error message on the center screen appeared saying NAV SD Card missing! First time I saw it was the NAV SD card (which frankly didn't know we had!)
So just removed the card (unlike the PDR card had to poke it with the end of a pen to get it to release.) Cleaned with alcohol and reinserted. NAV was back!
Now I have had a USB Flush Thumb Drive inserted with over 1000 songs for ~ 2 months. Same one I used in my C7s. I inserted to test but still using Sirius XM until in goes away in a few days. Initially I did get a NO USB but removed and reinserted and it was fine. I have nothing recorded at a high rate.
We'll see if NAV remains. For those on the Thread, if anything new please post.
Then today saw I was not getting speed limits in HUD. Thought strange. Pressed the NAV button (which I don't use often) to see if they were there. Then as others have posted the pic, error message on the center screen appeared saying NAV SD Card missing! First time I saw it was the NAV SD card (which frankly didn't know we had!)
So just removed the card (unlike the PDR card had to poke it with the end of a pen to get it to release.) Cleaned with alcohol and reinserted. NAV was back!
Now I have had a USB Flush Thumb Drive inserted with over 1000 songs for ~ 2 months. Same one I used in my C7s. I inserted to test but still using Sirius XM until in goes away in a few days. Initially I did get a NO USB but removed and reinserted and it was fine. I have nothing recorded at a high rate.
We'll see if NAV remains. For those on the Thread, if anything new please post.
Last edited by JerryU; Aug 25, 2021 at 01:30 PM.
Instructor
Joined: Mar 2015
Posts: 110
Likes: 71
I do have a status update on this. I was occasionally seeing the error about NAV card removed, and otherwise was always seeing the error on the NAV screen on every startup about needing to click confirm to initialize the maps SD card. I got an OTA update a few days ago that was for "enhanced radio experience" or something like that, and it seems to have fixed that stupid "initialize SD card" prompt on every startup. So perhaps this OTA update will also help with the other NAV SD card issues folks have been seeing?
Race Director
Joined: Aug 2016
Posts: 12,751
Likes: 10,184
From: Garden Valley CA
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,914
Likes: 12,327
From: NE South Carolina
Up Date on Yesterday's Success!
Post #30 said cleaning the NAV SD card contacts with alcohol yesterday appeared to resolve the issue.
This morning all showed fine, NAV working. Since September 26th was supposed to end my Sirius XM switched to my USB Tomb Drive. All was fine.
When I restated after leaving the store, no NAV. Shut the car off several times to see if that would help. Nothing same message NAV SD Card removed. Removed Thumb Drive- same NO SD Card message.
When I was home,
Is this a solution or a random software issue??? Who knows, time will tell or perhaps GM will offer a thicker SD Card!
BTW, did not measure the thickness of the NAV SD Card, Not about to remove it and the plastic shims. They will stay there as long as NAV is working! However measured two other SD Cards I have and they are 0.052 and 0.053 inches thick. So the 0.032 plastic I added is significant!
This morning all showed fine, NAV working. Since September 26th was supposed to end my Sirius XM switched to my USB Tomb Drive. All was fine.
When I restated after leaving the store, no NAV. Shut the car off several times to see if that would help. Nothing same message NAV SD Card removed. Removed Thumb Drive- same NO SD Card message.
When I was home,
- Checked for software updates none needed.
- Removed NAV SD Card and cleaned contacts as yesterday with alcohol. Rubbed hard! No Help!
- Decided to try putting a thin piece of plastic OVER the SD Card to increase pressure on contacts. Used some thin packaging plastic and cut the width of the SD, left long and marked so I knew how far it had to be inserted to be over the contacts. Nothing, same message.
- Then thought the plastic when over the SD card very easy I'll try another piece over it. It's 0.016 inches thick. It also went in somewhat easy. It worked. So with 0.032 inch thickness of plastic over SD Card contacts and it worked. Restarted several times and NAV started instantly. BTW Thumb Drive music is playing!
Is this a solution or a random software issue??? Who knows, time will tell or perhaps GM will offer a thicker SD Card!
BTW, did not measure the thickness of the NAV SD Card, Not about to remove it and the plastic shims. They will stay there as long as NAV is working! However measured two other SD Cards I have and they are 0.052 and 0.053 inches thick. So the 0.032 plastic I added is significant!
Last edited by JerryU; Aug 26, 2021 at 12:00 PM.
Melting Slicks
Joined: Nov 1999
Posts: 2,920
Likes: 360
From: Mayer, AZ
My NAV card worked fine for the first 13 months, then started acting up the past two months like several others here. Randomly works, then doesn't. Sometimes works all day other days works only for an hour or so. Then next day at startup it fails again. All the "fixes" have been tried and failed or seemed to succeed for a day or two. Dealer ordered me a new card, I'll report back if that fixes the problem, but not optimistic at this point.
I did try something interesting to see if it was the slot or???? I made a music SD card and inserted in the NAV slot, and it played fine and never stopped or glitched, so it does appear to be card related.
I did try something interesting to see if it was the slot or???? I made a music SD card and inserted in the NAV slot, and it played fine and never stopped or glitched, so it does appear to be card related.
Last edited by tome; Aug 26, 2021 at 02:59 PM.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,914
Likes: 12,327
From: NE South Carolina
^^^
Yep mine worked for a year and only started to get that occasionally SC Card removed message a month ago. Can’t be sure when the NAV message started only saw it yesterday. Hope this is a software fix but curious why adding 0. 032 thickness to what is probably a 0.052 inch thick card appears to have worked. If I take it out again when/if it stops will measure.
Yep mine worked for a year and only started to get that occasionally SC Card removed message a month ago. Can’t be sure when the NAV message started only saw it yesterday. Hope this is a software fix but curious why adding 0. 032 thickness to what is probably a 0.052 inch thick card appears to have worked. If I take it out again when/if it stops will measure.
Last edited by JerryU; Aug 26, 2021 at 03:30 PM.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,914
Likes: 12,327
From: NE South Carolina
Interesting. As the above Post mentioned I was able to get my NAV to work by adding 0.032 plastic "shim" above the NAV SD card. Worked fine today.
Then I pulled the SD PDR card to check latest captured video. As mentioned I had checked an old SD car and it was 0.053 inches thick, So adding 0.032 "shim" on top made it 0.085 inches. Just measured the relatively new SD card I bought for the PDR and it was 0.083 inches.
Since NAV is working with the 0.032 plastic shim over the whole NAV SD top it could well be the car reader! Curious if someone pulls the NAV SD card and measures the thickness.
As I said IF this works I'm not touching it! So don't want to remove it and the shims. The post where the dealer is getting a new NAV SD card to try it would also be interesting. Also be interesting to see how thick it is! My car is a year old so have no idea why this would start acting up ~2 months ago and finally NAV stopped working.
Then I pulled the SD PDR card to check latest captured video. As mentioned I had checked an old SD car and it was 0.053 inches thick, So adding 0.032 "shim" on top made it 0.085 inches. Just measured the relatively new SD card I bought for the PDR and it was 0.083 inches.
Since NAV is working with the 0.032 plastic shim over the whole NAV SD top it could well be the car reader! Curious if someone pulls the NAV SD card and measures the thickness.
As I said IF this works I'm not touching it! So don't want to remove it and the shims. The post where the dealer is getting a new NAV SD card to try it would also be interesting. Also be interesting to see how thick it is! My car is a year old so have no idea why this would start acting up ~2 months ago and finally NAV stopped working.
Melting Slicks
Joined: Nov 1999
Posts: 2,920
Likes: 360
From: Mayer, AZ
Interesting. As the above Post mentioned I was able to get my NAV to work by adding 0.032 plastic "shim" above the NAV SD card. Worked fine today.
Then I pulled the SD PDR card to check latest captured video. As mentioned I had checked an old SD car and it was 0.053 inches thick, So adding 0.032 "shim" on top made it 0.085 inches. Just measured the relatively new SD card I bought for the PDR and it was 0.083 inches.
Since NAV is working with the 0.032 plastic shim over the whole NAV SD top it could well be the car reader! Curious if someone pulls the NAV SD card and measures the thickness.
As I said IF this works I'm not touching it! So don't want to remove it and the shims. The post where the dealer is getting a new NAV SD card to try it would also be interesting. Also be interesting to see how thick it is! My car is a year old so have no idea why this would start acting up ~2 months ago and finally NAV stopped working.
Then I pulled the SD PDR card to check latest captured video. As mentioned I had checked an old SD car and it was 0.053 inches thick, So adding 0.032 "shim" on top made it 0.085 inches. Just measured the relatively new SD card I bought for the PDR and it was 0.083 inches.
Since NAV is working with the 0.032 plastic shim over the whole NAV SD top it could well be the car reader! Curious if someone pulls the NAV SD card and measures the thickness.
As I said IF this works I'm not touching it! So don't want to remove it and the shims. The post where the dealer is getting a new NAV SD card to try it would also be interesting. Also be interesting to see how thick it is! My car is a year old so have no idea why this would start acting up ~2 months ago and finally NAV stopped working.
Just measured my 2020 card and it is .082. If fits pretty snug so don't think I will try to add the clear shim.