Alerts
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| Signal Name | Description | Condition | Impact |
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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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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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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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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 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 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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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 vehicle controller detects the front trunk (also known as the frunk) sensor requires service as a condition affecting functionality has been detected on one or more of the frunk latch switches.
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May set due to any of the following: (1) one of the switches is pressed while the other is not pressed; (2) one or more of the frunk latch switches on the frunk sensor are shorted, disconnected, or in an indeterminate voltage range.
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The frunk may not function as expected. For example, the user interface (UI) on the center display may show the frunk as open when it is actually closed.
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The vehicle controller detects the isentropic check for the refrigerant discharge temperature (TD) is unsuccessful, indicating the A/C compressor mass flow rate is below the expected level.
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The isentropic check for the TD is unsuccessful.
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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 low voltage battery management system (LVBMS) reports a condition affecting the low voltage (LV) battery or the ability of the LVBMS to manage the LV battery. May result in LV battery damage or loss of LV battery support for vehicle electrical systems.
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The LVBMS detects a condition affecting its ability to manage the LV battery. Alert log signal data should provide more information.
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Lack of LVBMS functionality may result in LV battery damage or degradation, and may also result in loss of LV battery support for vehicle electrical systems.
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There is an unexpected condition affecting a VNF1048 chip.
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The VNF1048 chip reports a condition affecting its operation.
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Affected eFuse may not be on.
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The steering wheel horn switch is stuck on.
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The steering wheel horn switch has been pressed for 60 seconds
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The steering wheel horn switch no longer activates the horn
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The vehicle controller detects that the Thermal Fill Drain service routine is being run while the vehicle is in Drive.
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The Thermal Fill Drain service routine is run.
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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 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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The refrigerant system has not been commissioned or has been decommissioned by the Thermal Fill Drain service routine.
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The Thermal Fill Drain service routine is run.
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Powertrain and HVAC performance will be limited, the compressor will be limited to 2000rpm.
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The pack serial number (SN) is invalid and is not supported for tracking in non-volatile memory (NVM).
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An invalid pack SN has been read
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Pack data will not be tracked in NVM. Pack vitals, such as State of Charge, may be inaccurate after ECU resets
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A pack serial number (SN) change has been detected which requires an ECU reset to re-initialize data from non-volatile memory (NVM).
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A valid pack SN has been read with does not match the pack SN associated with the NVM data used after ECU reset
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The NVM data used during initialization may not match with the swapped pack. Pack vitals, such as State of Charge, may be inaccurate
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The bridge gate driver experienced a condition affecting its operation.
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The bridge gate driver reports a condition affecting its operation.
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Actuators controlled by the bridge gate driver may be inoperative.
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A Low Voltage (LV) battery pack module temperature is above the warning temperature limit.
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A battery pack module temperature is above the warning temperature limit for longer than expected.
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Vehicle may be unable to drive.
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