Describe the car bug
Vehicle / hardware
Vehicle: 2021 Genesis G80 (RG3)
Hardware: Chestnut, powered from the vehicle cigarette-lighter / accessory socket
Problem
When the ignition is turned off while Chestnut remains powered from the cigarette-lighter socket, the vehicle does not shut its electronics down normally right away.
The navigation/infotainment system remains on and a message related to checking/requesting the gear selector (shift lever) status appears.
Reproduction / observations
Chestnut connected and powered from the vehicle cigarette-lighter socket.
Turn the vehicle ignition OFF.
Navigation/infotainment remains on temporarily and the gear-selector-status message appears.
Disconnecting the USB connection between Chestnut and the comma device does not change the behavior.
Disconnecting Chestnut cigarette-lighter power causes the vehicle to shut down normally immediately.
If Chestnut power is left connected, the vehicle eventually shuts down after roughly 5 seconds.
Expected behavior
The vehicle should complete its normal ACC/ignition shutdown sequence immediately when the ignition is turned off, regardless of whether Chestnut remains connected to the accessory socket.
Additional note / possible cause
Because USB disconnection has no effect while removing the 12 V Chestnut power immediately fixes the issue, this appears more likely to involve the Chestnut power path / shutdown transient than the USB/CAN data path.
One possible explanation is residual energy or reverse-current/backfeed from the Chestnut power supply / DC-DC input path after the vehicle cuts accessory power. This is only a hypothesis at this point; the voltage waveform has not yet been measured.
It may be worth checking the Chestnut vehicle power cable / power stage for reverse-current blocking, input isolation, or active discharge behavior, particularly with Hyundai/Genesis accessory-power circuits.
Provide a route where the issue occurs
google_101244957514052970483
openpilot version
0.11.1
Additional info
No response
Describe the car bug
Vehicle / hardware
Vehicle: 2021 Genesis G80 (RG3)
Hardware: Chestnut, powered from the vehicle cigarette-lighter / accessory socket
Problem
When the ignition is turned off while Chestnut remains powered from the cigarette-lighter socket, the vehicle does not shut its electronics down normally right away.
The navigation/infotainment system remains on and a message related to checking/requesting the gear selector (shift lever) status appears.
Reproduction / observations
Chestnut connected and powered from the vehicle cigarette-lighter socket.
Turn the vehicle ignition OFF.
Navigation/infotainment remains on temporarily and the gear-selector-status message appears.
Disconnecting the USB connection between Chestnut and the comma device does not change the behavior.
Disconnecting Chestnut cigarette-lighter power causes the vehicle to shut down normally immediately.
If Chestnut power is left connected, the vehicle eventually shuts down after roughly 5 seconds.
Expected behavior
The vehicle should complete its normal ACC/ignition shutdown sequence immediately when the ignition is turned off, regardless of whether Chestnut remains connected to the accessory socket.
Additional note / possible cause
Because USB disconnection has no effect while removing the 12 V Chestnut power immediately fixes the issue, this appears more likely to involve the Chestnut power path / shutdown transient than the USB/CAN data path.
One possible explanation is residual energy or reverse-current/backfeed from the Chestnut power supply / DC-DC input path after the vehicle cuts accessory power. This is only a hypothesis at this point; the voltage waveform has not yet been measured.
It may be worth checking the Chestnut vehicle power cable / power stage for reverse-current blocking, input isolation, or active discharge behavior, particularly with Hyundai/Genesis accessory-power circuits.
Provide a route where the issue occurs
google_101244957514052970483
openpilot version
0.11.1
Additional info
No response