Alerts
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| Signal Name | Description | Condition | Impact |
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The front vehicle controller (VCFRONT) detects the powertrain coolant temperature sensor is reporting an incorrect value.
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There is an irrational difference between the powertrain coolant temperature sensor value and the drive inverter (DI) temperature sensor value.
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Powertrain performance may be limited.
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After a single discharge and recharge cycle, the low voltage (LV) battery has been overcharged by more than 5 Amp hours (Ah) compared to initial charge level. If this continues, it may indicate a condition affecting LV battery performance that makes replacement necessary. May also indicate aftermarket device(s) installed on the vehicle, whose current draw interferes with LV battery management.
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Over a single charge cycle, the LV battery has recharged by more than 5Ah compared to the power initially discharged.
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10 independent instances of this alert indicate a chronic overcharge condition that may require LV battery replacement to resolve, and at least one other alert should be present to indicate that condition.
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The front vehicle controller (VCFRONT) detects the battery coolant temperature sensor is reporting an incorrect value.
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There is an irrational difference between the battery coolant temperature sensor value and the battery temperature sensor value.
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Powertrain performance may be limited.
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Battery Pump Controller not responding on Local Interconnect Network (LIN).
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Battery Pump Controller not responding on Local Interconnect Network (LIN)
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Battery Pump Controls will not function
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The vehicle is unable to drive because it has been placed in Showroom Mode, a mode intended for display rather than driving. This should not occur with a production vehicle once it has been delivered. If this occurs due to an error, service is required to exit Showroom Mode.
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An attempt is made to enter drive while the vehicle is in Showroom Mode.
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The vehicle is unable to drive.
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The brushless motor has a condition affecting its functionality.
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The Radiator Fan motor controller detected an error
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The Radiator Fan will not be able to run. The integrated circuit will clear the condition when the condition is no longer present
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The vehicle controller is reporting a short circuit on the low voltage (LV) battery temperature sensor, indicating damage to the sensor or wiring harness.
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The LV battery temperature sensor circuit reads a power rail reference voltage, indicating a short circuit.
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A default voltage setpoint is used when charging the LV battery, instead of optimizing the voltage setpoint based on the LV battery's actual temperature. The LV battery may experience accelerated degradation if this continues.
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The front vehicle controller (VCFRONT) has detected a condition affecting the reverse battery charge pump.
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VCFRONT detects a high drop in voltage across protection field effect transistors (FETs) is high or the charge pump voltage is low.
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The DCDC converter may not enable, resulting in no power conversion system (PCS) support for the low voltage (LV) battery and electrical system.
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The front vehicle controller (VCFRONT) detects the Autopilot 1 eFuse has tripped (circuit opened).
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The Autopilot 1 eFuse high side driver (HSD) detects electrical current flow exceeding normal (expected operating) range, causing the Autopilot 1 eFuse circuit to open (trip).
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Autopilot features are unavailable.
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The vehicle controller detects a condition affecting the front right turn indicator.
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May set due to any of the following: (1) electrical condition, such as a short or open circuit; (2) over / under voltage condition; (3) current driver condition.
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The front right turn indicator may not function as expected. Working turn indicators on the right side of the vehicle will blink at double the speed.
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The front vehicle controller (VCFRONT) detects a condition affecting the Sleep Bypass Buck Converter circuit, preventing the vehicle from sleeping.
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The output voltage measured by the VCFRONT from the Sleep Bypass Buck Converter is too low to support loads during vehicle sleep.
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The vehicle is unable to sleep and will consume more energy when idle, possibly becoming unresponsive / not waking as expected.
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The vehicle controller is reporting an open circuit on the low voltage (LV) battery temperature sensor, indicating damage to the sensor or wiring harness.
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The LV battery temperature sensor circuit reads a ground reference voltage, indicating an open circuit (disconnected).
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A default voltage setpoint is used when charging the LV battery, instead of optimizing the voltage setpoint based on the LV battery's actual temperature. The LV battery may experience accelerated degradation if this continues.
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The front vehicle controller (VCFRONT) detects a power draw higher than expected from the left or right vehicle controller (VCLEFT / VCRIGHT) while in DRIVE or during a DC charging session.
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There is a sudden high power draw being observed on the VCLEFT or VCRIGHT that is outside of the defined operating threshold.
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Vehicle may be unable to drive and may start to power down after exiting DRIVE or after the DC charging session is complete.
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The brushless motor has a condition affecting its functionality.
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The Battery Pump motor controller detected an error
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The Battery Pump will not be able to run. The integrated circuit will clear the condition when the condition is no longer present
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The front vehicle controller (VCFRONT) detects the front trunk (also known as the frunk) primary latch is experiencing an undercurrent condition.
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The frunk primary latch draws less current than expected.
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The frunk primary latch may be disconnected.
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The low voltage (LV) battery has reached its voltage floor before it has reached its Amp hour (Ah) budget. May indicate the LV battery has low charge capacity.
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The measured LV battery voltage has reached its floor before its Amp hour budget floor.
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The LV battery may have low discharge capacity, limiting its ability to support the vehicle's low voltage electrical system.
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Powertrain Pump Controller not responding on Local Interconnect Network (LIN).
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Powertrain Pump Controller not responding on Local Interconnect Network (LIN)
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Powertrain Pump Controls will not function
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Over multiple discharge and recharge cycles, the low voltage (LV) battery has been overcharged by more than 5 Amp hours (Ah) compared to initial charge level. Indicates a condition affecting LV battery performance that makes replacement necessary (another alert specific to replacement should be present). May also indicate aftermarket device(s) installed on the vehicle, whose current draw interferes with LV battery management.
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Over multiple charge cycles, the LV battery has recharged by more than 5Ah compared to the energy initially discharged.
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The LV battery may enter thermal runaway if the chronic overcharge condition is not resolved. The LV battery requires replacement, with a separate alert present to directly indicate that condition.
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The brushless motor has a condition affecting its functionality.
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The Powertrain Pump motor controller detected an error
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The Powertrain Pump will not be able to run. The integrated circuit will clear the condition when the condition is no longer present
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The reverse battery protection transistor is not in its nominal state / functioning as expected. This occurs when an abnormally high amount of current is detected flowing from the low voltage (LV) battery vehicle controller to the LV battery.
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The low voltage (LV) battery vehicle controller has detected an issue with the reverse battery protection transistor.
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The low voltage (LV) electrical system for the vehicle could become unsupported and shut down if power conversion system (PCS) support is also lost
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