Recently my navi has been taking forever to calculate routes. Like literally 3 minutes to calculate and today it actually failed to calculate a route ( did it on the second very slow attempt). I assumed it was a buggy update, but today the screen went black while driving. Rear view cam was still visible but rest of screen was black with the Tesla logo. It wouldn't change until I did the scroll wheel reset and when it did reboot it took much longer than a usual reboot. Is my mcu on the way out?
-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Navigation extremely slow all of a sudden. Software bug or something worse?
- Thread starter Shiro
- Start date
beatle
Active Member
Probably. My car didn't really start flaking out in earnest until a few weeks ago. I could not stream Spotify or play from USB, and a scroll wheel reboot took about 4 hours. A week later I eventually lost connection with the app. I just picked up my car today from the SC and they replaced the MCU daughtercard to solve it.
whitex
Well-Known Member
What car do you drive, how old is it and is it on its original MCU?
zanary
Active Member
whitex
Well-Known Member
Then yes, your MCU emmc is likely going. Your options in order of price are:
- Have Tesla replace the Tegra board which includes a new emmc. This option is free under warranty, or $490+tx out of warranty.
- Have a 3rd party replace the emmc on your board. Cost similar as above if you do your own disassembly and assembly, but you end up with higher end emmc which will likely outlast your car. It is also often a quickest fix, as Tesla can have long parts lead times on #1 or #3, so if your car is grounded due to MCU failure, this can get it going faster.
- Upgrade to MCU2, $2,500 (though I hear some SC's offer few hundred credit if under warranty)
Not necessarily; software updates are flashed alternately to partition 1 and partition 2. You might have eMMC "bad block" in only one partition. So it's possible next upcoming update will hit the bad part again.
murphyS90D
Member
The navigation map is stored on a micro SD card. A bad eMMC could result in corruption of data written to the card. Mine was over a year behind because the map update kept aborting. In January 2020 they remotely partitioned and formatted the map card. The map then downloaded and has been fine since. I now have an appointment scheduled because of inability to turn the A/C off and failure to close the garage door. Both were "fixed" by a scroll wheel reboot.
I lost GPS ability to navigate to selected address (although maps are able to search) while I postponed upgrade from 2020.24.6.11 to 2020.32.3. I usually wait for been confident to launch new SW. Few days after upgrading to 2020.32.3 version was introduced new 2020.36.3.1 and it still shows exclamation mark on the upper row of the screen to remind me I need maps for navigation. Not happened before though...
If it's happening in the 2020 model S, likely not related to emmc issue, but rather just a software issue.
Wol747
Active Member
>>If it's happening in the 2020 model S, likely not related to emmc issue, but rather just a software issue.<<
Pity you used the word "just" in that sentence - it's a self driving car.....
Pity you used the word "just" in that sentence - it's a self driving car.....
The map is downloaded on the fly using cellular network, you may just have had a poor connection.
Wol747
Active Member
>>The map is downloaded on the fly using cellular network, you may just have had a poor connection.<<
No, the Google maps are several years out of date here. My home, which we've been in for two years, is mapped as bushland! God knows why Tesla don't use specialist mapping companies like other GPS users.
No, the Google maps are several years out of date here. My home, which we've been in for two years, is mapped as bushland! God knows why Tesla don't use specialist mapping companies like other GPS users.
I didn’t say Tesla uses google maps tiles. Only that it streams the display maps from some server. Try scrolling in an underground parking with no cellular and no WiFi, you shouldn’t have maps. Unless this changed at some update, I’m sure it was the case at some point.
Similar threads
