The issue only started happening since about 2 weeks ago. But it's just so weird that it doesn't look like either software or hardward issue alone..
FSD will work fine for some time after I start the drive (time varies, between 5 - 60 min as I have observed so far), then randomly, when the issue is triggered somehow, it won't let me engage again if speed is over 28 km/h (17 mph), very consistently for the rest of the trip. The grey steering week and speed limit sign will not appear. And if I try to engage, it gives me warning that "Autosteer temporarily unavailable". It would allow me to engage FSD when speed goes lower than 28 km/h, but FSD will behave weried - when it try to make a lane change to follow route, it will turn on turn signal but won't make the actual lane change completely; it drives super slow for no reason... Basically not usable.
When the issue happens, FSD visualization was fine, and I could also engage regular Autopilot just fine by disabling FSD in the Autopilot menu.
I checked in Service Mode, the FSD cameras and sensors are all showing as in Green status. The only alerts I saw was "PM_w041_dasMIA" and "THC_w0122_condLeftShutrNoFeedbk".
I would be able to use FSD normally for sometime if I left the car parked for sometime, then the issue might come back again randomly. It's been repeating this pattern almost every day recently.
I have tried the following but no avail:
- Restart car
- Recalibrate camera (car was fine for 2 days, then bad again)
- Reinstall software in service mode
- Reset DAS in service mode (car was fine for 2 days, then bad again)
- Called Tesla support when issue happens but they couldn't notice anything as a direct cause from the logs either
- Scheduled a service appointment for Jan 19
My car is 2017 Model S, originally with HW2.5 (now with MCU 2 upgrade and HW3 upgrade), located in BC, Canada
Current FSD version: 10.69.25.1 (2022.44.30.5)
First noticed the issue in 10.69.25
FSD will work fine for some time after I start the drive (time varies, between 5 - 60 min as I have observed so far), then randomly, when the issue is triggered somehow, it won't let me engage again if speed is over 28 km/h (17 mph), very consistently for the rest of the trip. The grey steering week and speed limit sign will not appear. And if I try to engage, it gives me warning that "Autosteer temporarily unavailable". It would allow me to engage FSD when speed goes lower than 28 km/h, but FSD will behave weried - when it try to make a lane change to follow route, it will turn on turn signal but won't make the actual lane change completely; it drives super slow for no reason... Basically not usable.
When the issue happens, FSD visualization was fine, and I could also engage regular Autopilot just fine by disabling FSD in the Autopilot menu.
I checked in Service Mode, the FSD cameras and sensors are all showing as in Green status. The only alerts I saw was "PM_w041_dasMIA" and "THC_w0122_condLeftShutrNoFeedbk".
I would be able to use FSD normally for sometime if I left the car parked for sometime, then the issue might come back again randomly. It's been repeating this pattern almost every day recently.
I have tried the following but no avail:
- Restart car
- Recalibrate camera (car was fine for 2 days, then bad again)
- Reinstall software in service mode
- Reset DAS in service mode (car was fine for 2 days, then bad again)
- Called Tesla support when issue happens but they couldn't notice anything as a direct cause from the logs either
- Scheduled a service appointment for Jan 19
My car is 2017 Model S, originally with HW2.5 (now with MCU 2 upgrade and HW3 upgrade), located in BC, Canada
Current FSD version: 10.69.25.1 (2022.44.30.5)
First noticed the issue in 10.69.25
