Alerts
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| Signal Name | Description | Condition | Impact |
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The low voltage battery management system (LVBMS) reports it has detected the charge current is above the maximum limit for the low voltage (LV) battery cells in their present condition.
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The LVBMS detects the charge current is above the maximum limit for the LV battery cells in their present condition for 1 second.
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Exceeding charge current limits may shorten the life of LV battery cells, leading to accelerated degradation and replacement.
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The vehicle controller detected that the compressor delivered much less refrigerant flow than nominal and discharge temperature was abnormally high.
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The vehicle detects at least two of the following: refrigerant flow delivered by compressor is abnoramlly low by referring to EXV opening or cabin heating capacity, and discharge temperature is abnoramlly high.
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The thermal system may not perform as expected and compressor has high risk of loss of isolation due to debris.
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The 0 drive offset current captured as calibration was higher than expected.
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The calibration offset current measured when motor is not being driven was higher than 3.0 amps
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Caliper, Electronic Parking Brake controller, or harness could be damaged. Components may be damaged by high temperatures
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A request to change the DI power state has been denied.
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Electronic Parking Brake Left detects drive inverter lockout request timed out after 0.5 seconds
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Drive inverter may be faulted
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The Right Headlight Control Module (HCMR) detects an internal condition affecting the functionality of the right headlight, which is reported to the front vehicle controller (VCFRONT).
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The pixel matrix manager detects non-functional pixels or has communication issues, or the voltage measured across the boost rail, Lowbeam, DRL, Side Marker, or Turn LEDs is out of range, or the LED drivers in the ECU have reported status flags, or certain values programmed in the matrix manager EEPROM are out of range.
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Some headlight functions may be unavailable or may not function as expected. Headlight functionality may return after vehicle sleep.
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Motor negative lead voltage is greater than 6.0 volts while inactive.
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The Electronic Parking Brake motor is idle, and the negative lead voltage measurement is higher than 6.0 volts.
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Caliper motor or harness may be damaged
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One or more of the messages the vehicle controller receives periodically from the Low Voltage Battery Management System (LVBMS) is not received, indicating the LVBMS may be unavailable (MIA).
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The vehicle controller does not receive one or more of the expected messages from LVBMS within the expected time frame over the local interconnect network (LIN).
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Vehicle functions that depend on the low voltage battery controllers may be unavailable or may not function as expected.
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An internal condition affecting left headlamp functionality has been detected - certain light functions or the headlamp fan may be degraded or disabled.
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The SSL100 pixel matrix detects non-functional pixels or has communication issues, or the voltage measured across the boost rail, Lowbeam Prefield, DRL1/2/3, or Turn LEDs is out of range, or the LED drivers in the ECU have reported status flags, or certain values programmed in the SSL100 EEPROM are out of range, or the fan current is out of range.
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Certain light functions or the headlamp fan may be degraded or disabled. These functions will retry after the next headlamp power cycle (which occurs during sleep)
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An internal condition affecting right headlamp functionality has been detected - certain light functions or the headlamp fan may be degraded or disabled.
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The SSL100 pixel matrix detects non-functional pixels or has communication issues, or the voltage measured across the boost rail, Lowbeam Prefield, DRL1/2/3, or Turn LEDs is out of range, or the LED drivers in the ECU have reported status flags, or certain values programmed in the SSL100 EEPROM are out of range, or the fan current is out of range.
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Certain light functions or the headlamp fan may be degraded or disabled. These functions will retry after the next headlamp power cycle (which occurs during sleep)
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The front vehicle controller (VCFRONT) detects the three-way valve has encountered a condition preventing it from performing as designed.
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The three-way valve encounters a condition preventing it from performing as designed. Alert log signal data should provide more information on the specific condition(s) detected.
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Vehicle functions that rely on the three-way valve may be limited or unavailable.
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A Low Voltage (LV) battery pack brick voltage is above the over voltage limit for an extended time period.
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A battery pack brick voltage is greater than the over voltage limit for an extended time period.
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Vehicle may be unable to drive.
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Frunk interior emergency release button press has been detected, but the frunk was not opened because vehicle was in motion.
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Frunk emergency interior release button press detected while the vehicle is in motion.
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Possible occupant or object inside the frunk pressing the interior release button.
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The front vehicle controller (VCFRONT) detects the power conversion system (PCS) eFuse has exceeded 133 degrees C. The PCS eFuse circuit may open (trip) if low voltage (LV) electrical system loads are not reduced to 175A or less. VCFRONT is shedding some vehicle electrical loads by cutting power to less essential electronic control units (ECUs).
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The PCS eFuse temperature is detected as greater than 133 degrees C for 500 milliseconds.
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Some convenience features will be unavailable as VCFRONT limits LV electrical system current draw by cutting power to some electronic control units (ECUs).
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The eFuse application-specific integrated circuit (ASIC) on the vehicle controller is in an unexpected state.
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Vehicle controller eFuse ASIC is not in the requested state
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Vehicle Controller eFuse ASIC may not turn on or off as expected
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The vehicle controller detects the actual A/C compressor power is lower than expected.
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The A/C compressor power index is lower than expected.
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Cabin climate control system air conditioning and heating may be limited or unavailable. Battery heating and cooling performance may be limited.
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Difference between the discharge pressure and liquid pressure (Pd-Pl) increased. Discharge lines or Liquid Cooled Condenser (LCC) or Shut Off Valve (SOV) may be blocked.
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Pd-Pl is greater than 6 bar for 5 consecutive seconds.
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Thermal performance is degraded.
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The low voltage battery management system (LVBMS) reports the low voltage (LV) battery's internal protection transistor (MOSFET) has opened and it is not recoverable by the vehicle. However, the LV battery may be recoverable using an external LV Lithium Ion Battery charger tool. A separate alert will indicate whether the battery requires replacement.
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The LVBMS reports to the vehicle controller that the LV battery is not recoverable due to any of the following conditions: depleted LV battery state of charge (SoC) due to deep discharge; one or more cell voltage(s) at less than its threshold; the sum of all cell voltages is less than its threshold.
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The LV battery is not recoverable by the vehicle. If recovery via an external charger tool is unsuccessful, replacement will be necessary.
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The vehicle controller detects a discrepancy in the estimated refrigerant flow rates between the A/C compressor and recirculation electronic expansion valve (EXV) as the estimated refrigerant flow index is higher than expected while the subcool is high.
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The estimated refrigerant flow index is above the expected level, and the subcool is high.
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Cabin climate control system air conditioning and heating may be limited or unavailable. Battery heating and cooling performance may be limited.
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The flow index value is low at high subcool. The refrigerant flow rate through the electronic expansion valves (EXV) is not meeting the expected value when compared to the compressor refrigerant flow rate.
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The vehicle detects that refrigerant flow index is below expected levels and subcool is high.
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The thermal system may not perform as expected.
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The vehicle controller detects a discrepancy in the estimated refrigerant flow rates between the A/C compressor and recirculation electronic expansion valve (EXV) as the estimated refrigerant flow index is higher than expected while the subcool is low.
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The estimated refrigerant flow index is above the expected level, and the subcool is low.
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Cabin climate control system air conditioning and heating may be limited or unavailable. Battery heating and cooling performance may be limited.
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