Alerts
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| Signal Name | Description | Condition | Impact |
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The front vehicle controller (VCFRONT) detects the Autopilot 2 eFuse has tripped (circuit opened).
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The Autopilot 2 eFuse high side driver (HSD) detects electrical current flow exceeding normal (expected operating) range, causing the Autopilot 2 eFuse circuit to open (trip).
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Autopilot features are unavailable.
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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 vehicle controller detects the refrigerant liquid pressure sensor is experiencing an electrical condition (short or disconnect).
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The refrigerant liquid pressure sensor reads a power rail or ground reference voltage.
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Cabin climate control system air conditioning and heating may be limited or unavailable. 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 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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Drive blocked by alcohol ignition interlock device.
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A brake pedal press is detected when the vehicle is in Park (P) and the alcohol ignition interlock device has not yet allowed drive based on a successful alcohol test result.
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The vehicle is unable to drive.
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The vehicle controller detects the refrigerant liquid temperature sensor is experiencing an electrical condition (short or disconnect).
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The refrigerant liquid temperature sensor reads a power rail or ground reference voltage.
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Cabin climate control system air conditioning and heating may be limited or unavailable. Powertrain performance may be limited.
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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 vehicle controller detects the powertrain pump motor is experiencing a condition that is preventing the motor from running as expected.
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For at least 10.5 seconds, the powertrain pump motor's RPM feedback is less than 800 RPM or the powertrain pump motor is intermittently or continually given a non-zero flow request.
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Powertrain performance may be limited.
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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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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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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 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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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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The driver circuitry for the air suspension compressor reports a condition affecting functionality. The air compressor will be unavailable while the condition persists.
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The air compressor driver for the air suspension reports a condition affecting functionality for an extended period of time.
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The air compressor for the air suspension system is disabled while the condition persists, making air suspension functionality limited or unavailable.
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The front vehicle controller (VCFRONT) reports it cannot determine the brake fluid level, indicating the brake fluid level sensor is likely disconnected or has a short circuit.
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The brake fluid level sensor is not reporting a value, indicating a condition affecting electromechanical switch functionality.
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Brakes may not work as expected.
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The front vehicle controller (VCFRONT) reports the brake fluid level is low.
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VCFRONT detects the brake fluid level sensor reporting its electromechanical switch is closed, indicating the brake fluid reservoir is low or empty.
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Brakes may not work as expected.
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The front vehicle controller (VCFRONT) detects the coolant valve has encountered a calibration error.
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During calibration, the coolant valve is unable to meet the calibration target positions.
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Powertrain performance may be limited.
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