Alerts
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| Signal Name | Description | Condition | Impact |
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The Electronic Parking Brake or Electronic Parking Brake Monitor took longer than expected to save caliper state in non-volatile memory.
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Caliper state saved to Electronic Parking Brake and Electronic Parking Brake Monitor mismatched for more than 500ms
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Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch
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The caliper may be disconnected.
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The Electronic Parking Brake motor is idle, and the positive and negative lead's voltage measurement are more than 0.25V different
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Electronic Parking Brake may not be able to apply or release
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The front vehicle controller (VCFRONT) detects a condition affecting the functionality of the right headlight.
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The voltage measured across the boost rail, high beam, low beam, 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 headlamp 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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The LV system power or protection are compromised, driving is not recommended.
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The LV system power or protection are compromised
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Driving is not recommended when LV system is not healthy
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The front vehicle controller (VCFRONT) detects a condition affecting the functionality of the left headlight.
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The voltage measured across the boost rail, high beam, low beam, 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 headlamp 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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The Low Voltage (LV) battery internal resistance indicates degradation is present. Replacing the battery during service is recommended to prevent a future service visit.
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Direct Current Resistance (DCR) measurement of the LV battery's internal resistance reports a higher value than expected.
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The LV battery internal resistance may degrade to a point requiring replacement. If this happens, then an alert will set indicating LV battery replacement is needed.
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The front vehicle controller (VCFRONT) controller detects an air lock in the pump due to smaller than expected pump current values.
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The pump current is below the minimum threshold value for more than 20 seconds.
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Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
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One or more of the messages the vehicle controller receives periodically from the right second row seat controller (VCSEAT2R) is not received, indicating the VCSEAT2R may be unavailable (MIA).
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The vehicle controller does not receive one or more of the expected messages from the VCSEAT2R within the expected time frame.
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Vehicle functions that depend on the VCSEAT2R may be unavailable or may not function as expected.
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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 any device.
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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 any device.
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An issue is indicated from the non-volatile memory manager.
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Non-volatile memory misconfiguration or underlying flash/filesystem error.
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Non-volatile memory records may be incorrect or missing.
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The Electronic Parking Brake made an unexpected state transition.
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Electronic Parking Brake moved between states that are not marked as having a valid transition.
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Logical bug in the software
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The battery voltage measurement, nominally 12 volts, was higher than expected.
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The vbat voltage measurement is higher than 18.5 volts.
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12V Battery or low voltage systems may be damaged
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The current measurement reported by the LV battery (LVBMS_packCurrent) does not match the current sensor on the vehicle controller LV battery feed (IBSCurrent).
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The absolute value of current difference between LVBMS_packCurrent and IBSCurrent exceeds nominal expectations
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Incorrect battery current data being used, resulting in sub-optimal LV battery management.
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The Front Vehicle Controller (VCFRONT) has detected the sleep bypass voltage is low and cannot support vehicle sleep.
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The sleep bypass voltage is below 8V.
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The load being precharged may not turn on. Vehicle functions relying on the load being precharged may not operate as expected. The vehicle may not sleep and will experience higher idle range loss
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Front trunk (frunk) latch status suggests that the frunk switches are not correctly reporting the latch status. Latch may require replecement.
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Controller determines frunk latch switches are not reporting correctly based on recent frunk release and switch interactions.
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The frunk latch switches may not report the correct status. The frunk latch switches may report closed when the latch is physically open.
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The low voltage (LV) battery type reported by the vehicle gateway (GTW) configuration is a battery type not supported by this controller / firmware.
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The LV battery type indicated by the GTW configuration value is an LV battery type not supported by this controller / firmware.
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The LV battery system will not be updated to support the new configuration reported by the GTW configuration value. LV battery performance may be limited. LV battery support for vehicle electrical systems may be limited or unavailable.
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The front vehicle controller (VCFRONT) detects an incomplete coolant air purge due to abnormal pump current profile or terminated purge routine.
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The pump current profile is abnormal, or the purge routine is terminated before completion.
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Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.
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The front vehicle controller (VCFRONT) detects a power draw higher than expected from the right vehicle controller (VCRIGHT), causing the VCFRONT to power off the VCRIGHT.
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There is a sudden high power draw being observed on the 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. Vehicle functions that depend on the VCRIGHT (such as right side windows, doors, and/or seat functions) may be unavailable or their performance may be affected.
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The front vehicle controller has detected a problem during an eFuse self-test.
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Voltage conditions during the self-test sequence are not met.
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An eFuse may be unable to turn off or on. Front vehicle controller (VCFRONT) may not function as expected.
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The vehicle controller is loadshedding due to a failed LV Health check.
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Vehicle LV Health check fails in while vehicle is driving without manual control.
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A fault has been detected in the LV system and driverless operation may be unsafe.
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