Alerts
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| Signal Name | Description | Condition | Impact |
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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 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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Vehicle attempted a power state transition which the Electronic Parking Brake did not agree with.
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VCFRONT and EPB vehicle power states are not the same
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A controller may be stuck in the wrong power state. Could block sleep or other functions
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The front vehicle controller (VCFRONT) detects a sudden high power draw from the left vehicle controller (VCLEFT), causing the VCFRONT to power off the VCLEFT.
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There is a sudden high power draw being observed on the VCLEFT that is outside of the defined operating threshold.
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Vehicle may be unable to drive. Vehicle functions that depend on the VCLEFT (such as left side windows, doors, seat functions, and/or powered liftgate) may be unavailable or their performance may be affected.
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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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The observed power draw on the VCRIGHT is outside of the defined operating threshold for too long.
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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 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 vehicle controller (VC) identified the PCS is MIA and may be in need of a power cycle to be recovered. This alert indicates the low voltage (LV) battery is in good state to support this.
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The PCS is MIA when expected to be active on CAN, the LV battery is connected, the vehicle is not in service mode, and the vehicle is not being updated.
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The PCS may be power cycled by the high voltage system.
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Left and right headlamps report simultaneous matrix manager, LED, High Side Driver (HSD), or Boolean status errors indicating a condition affecting functionality of both headlamps.
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For both headlamps, the SSL100 pixel matrix detects non-functional pixels or has communication issues, or the voltage measured across the Lowbeam Prefield, DRL segments, or Turn LEDs (Model S only) 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 for both headlamps.
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A condition affecting right low beam (dipped beam) or high beam (main beam) functionality has been detected - the right low beam or high beam may be degraded or disabled.
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An internal condition affecting the low beam (dipped beam) or high beam (main beam) LEDs, pixels, or the headlamp ECU's LED drivers is detected.
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Right low beam (dipped beam) or high beam (main beam) may be partially or fully disabled.
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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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The vehicle controller(s) controlling the headlamps have commanded the headlights to adjust to a beam pattern that is optimized for right-hand traffic as the vehicle is now located in a region with right-hand traffic.
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The vehicle is now located in a region with right-hand traffic, meaning vehicles are being driven on the right side of the road.
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Headlight illumination will be optimized for regions with right-hand traffic.
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The front vehicle controller (VCFRONT) detects an eFuse overcurrent event (or a trip) on the left headlight power feed.
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The VCFRONT detects an eFuse overcurrent event on the left headlight power feed.
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The left headlight may be unavailable or may not function as expected.
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The front vehicle controller (VCFRONT) detects an eFuse overcurrent event (or a trip) on the right headlight power feed.
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The VCFRONT detects an eFuse overcurrent event on the right headlight power feed.
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The right headlight may be unavailable or may not function as expected.
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The front vehicle controller (VCFRONT) detects a power draw higher than expected from the left vehicle controller (VCLEFT), causing the VCFRONT to power off the VCLEFT.
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The observed power draw on the VCLEFT is outside of the defined operating threshold for too long.
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Vehicle may be unable to drive. Vehicle functions that depend on the VCLEFT (such as left side windows, doors, seat functions, and/or powered liftgate) may be unavailable or their performance may be affected.
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The Electronic Parking Brake and 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
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Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch
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The Low Voltage Battery Management System (LVBMS) detects that the low voltage (LV) battery pack is experiencing high temperatures.
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The LVBMS module temperature has reached 60 deg C for 1 second.
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The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.
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Charge Port door open request not honored because brake is pressed.
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The UI requests charge port door open while the customer has brake pedal pressed.
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The vehicle will not allow the charge port door to open.
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The Low Voltage Battery Management System (LVBMS) detects high temperature at the low voltage (LV) battery MOSFET (internal protection transistor).
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The LVBMS MOSFET temperature has reached 100 deg C for 1 second.
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The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.
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The low voltage battery management system (LVBMS) reports the low voltage (LV) battery has a reduced state of charge (SOC), which may lead to the LVBMS opening the LV battery internal protection transistor (MOSFET).
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The LVBMS detects the LV battery SOC is below 15% for 5 seconds.
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The LV battery may be unable to support vehicle electrical systems.
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