MyTeslaMate App

Signal Name	Description	Condition	Impact
VCREAR_a089_IBST_MIA	One or more of the expected CAN messages from iBooster were not received.	A message the local ECU expects to receive from the iBooster ECU has not been received within the expected timeout or the drop rate is too high while the iBooster is CAN active.	Brake boost functionality may be missing.
VCREAR_a002_PowerLossReset	Warns if the processor has experienced a reset due to power loss.	Sudden power loss.	Controller is MIA for some time.
VCREAR_a054_APP_MIA	One or more of the expected controller area network (CAN) messages from the Autopilot Primary (APP) were not received.	A message the local ECU expects to receive from the APP ECU is not received within the expected timeout, or the drop rate is too high while the APP is CAN active.	Autopilot does not operate as expected.
VCREAR_a073_BCS2C_MIA	One or more of the messages the vehicle controller receives periodically from the 2nd row center seat body controller (BCS2C) is not received, indicating the BCS2C may be unavailable (MIA).	One or more of the expected messages from the BCS2C is not received.	2nd row center seat features depending on BCS2C functionality, including seat buckle and heating pad, may be limited or unavailable.
VCREAR_a077_BCRDM_MIA	One or more of the messages the vehicle controller receives periodically from the body controller for the rear driver door (BCRDM) is not received, indicating the BCRDM may be unavailable (MIA).	One or more of the expected messages from the BCRDM is not received.	The rear driver side falcon door may not function as expected.
VCLEFT_a599_LVBatteryTypeUnsupported	The low voltage (LV) battery type reported by the vehicle gateway (GTW) configuration is a battery type not supported by this controller / firmware.	The LV battery type indicated by the GTW configuration value is an LV battery type not supported by this controller / firmware.	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.
VCLEFT_a599_frunkLatchDisabled	The front trunk (frunk) latch has been disabled. The frunk latch enable routine must be run to restore latch function.	The vehicle frunk latch has been set to disabled in the controller's non-volatile memory (NVM).	No frunk latch movement or function, even if frunk latch is connected.
VCLEFT_a598_LVBMBeFuseSelfTestFailed	The vehicle controller detects the low voltage (LV) battery internal protection transistor (MOSFET) self test has failed, indicating one or more conditions affecting MOSFET functionality.	Any part of the LV battery internal protection transistor (MOSFET) self test reports a failure. Alert log signal data should provide more information.	LV battery internal protection transistor (MOSFET) functionality is not confirmed. The LV battery may be unable to support vehicle electrical systems or to recharge via the power conversion system (PCS).
VCLEFT_a600_currentSensorMismatch	The current measurement reported by the LV battery (LVBMS_packCurrent) does not match the current sensor on the vehicle controller LV battery feed (IBSCurrent).	The absolute value of current difference between LVBMS_packCurrent and IBSCurrent exceeds nominal expectations	Incorrect battery current data being used, resulting in sub-optimal LV battery management.
VCLEFT_a595_steeringWheelSwitchMIA	Steering wheel switchpack not responding on Local Interconnect Network (LIN).	Steering wheel switchpack not responding on LIN	Steering wheel switchpack will not function
VCLEFT_a597_LVBMBeFuseSelfTestNotReady	The low voltage (LV) battery internal protection transistor (MOSFET) self test has not yet completed.	The LV battery internal protection transistor (MOSFET) self test has not yet completed, potentially because a condition or combination of conditions prevents it from running. Alert log signal data should provide more information.	Vehicle is unable to shift out of Park (P) until the LV battery internal protection transistor (MOSFET) self test completes or times out without completing. If the self test cannot complete and confirm LV battery MOSFET functionality, the LV battery may be unable to support vehicle electrical systems or to recharge via the power conversion system (PCS).
VCLEFT_a617_APP_MIA	One or more of the expected CAN messages from APP were not received.	A message the local ECU expects to receive from the APP ECU hasn't been received within the expected timeout or the drop rate is too high while the APP is CAN active. The ECU is considered CAN active when VCFRONT_chGoToSleep is 0.	Autopilot functionality may be missing.
VCLEFT_a593_seatEncOverThighSupport	The Thigh Support Motor traveled beyond the expected range.	Seat position goes outside the acceptable range	Seat may be in an unstable position or a mechanism may failed
VCLEFT_a592_seatUncalThighSupport	The Thigh Support Motor is uncalibrated.	The motor is uncalibrated	Seat position recall may be unavailable
VCLEFT_a592_vehicleLoadShed	The low voltage (LV) battery is no longer supported by the power conversion system (PCS) due to a condition affecting the LV system. The vehicle low voltage electrical system needs to shed electrical loads by cutting power to some systems / electronic control units (ECUs).	Low voltage (LV) battery is not supported by the power conversion system (PCS)	All nonessential features / components will no longer be available, with support reserved for critical functions like operating doors, windows, exterior lights, and front trunk (frunk).
VCREAR_a123_Uc	Motor current was lower than expected.	Motor current measurement, with calibration offset subtracted, was lower than 0.25 amps	Caliper could be disconnected or the harness is damaged.
VCLEFT_a594_seatThighSupportStallDebug	The Thigh Support Motor unexpectedly stalls.	Current draw exceeds stall limit.	The motor may recalibrate if the stall is in an expected region.
VCLEFT_a590_seatEncStallThighSupport	The Thigh Support Motor is not providing encoder feedback.	The current draw is not zero and the motor is not stalling, but the encoder values do not increase.	Seat memory recall may be unavailable.
VCLEFT_a588_driveBlockedByTentMode	User notification that drive is blocked while Tent Mode is active.	Tent Mode has been activated via the vehicle touchscreen (UI), and a brake pedal press / attempt to exit Park (P) is detected.	The vehicle is unable to drive.
VCLEFT_a591_seatCurrUnderThighSupport	The Thigh Support Motor current is below the expected threshold, causing the motor to be unresponsive.	The motor current is below the expected threshold	Seat may be unable to move.

VCREAR_a089_IBST_MIA

One or more of the expected CAN messages from iBooster were not received.

A message the local ECU expects to receive from the iBooster ECU has not been received within the expected timeout or the drop rate is too high while the iBooster is CAN active.

Brake boost functionality may be missing.

VCREAR_a002_PowerLossReset

Warns if the processor has experienced a reset due to power loss.

Sudden power loss.

Controller is MIA for some time.

VCREAR_a054_APP_MIA

One or more of the expected controller area network (CAN) messages from the Autopilot Primary (APP) were not received.

A message the local ECU expects to receive from the APP ECU is not received within the expected timeout, or the drop rate is too high while the APP is CAN active.

Autopilot does not operate as expected.

VCREAR_a073_BCS2C_MIA

One or more of the messages the vehicle controller receives periodically from the 2nd row center seat body controller (BCS2C) is not received, indicating the BCS2C may be unavailable (MIA).

One or more of the expected messages from the BCS2C is not received.

2nd row center seat features depending on BCS2C functionality, including seat buckle and heating pad, may be limited or unavailable.

VCREAR_a077_BCRDM_MIA

One or more of the messages the vehicle controller receives periodically from the body controller for the rear driver door (BCRDM) is not received, indicating the BCRDM may be unavailable (MIA).

One or more of the expected messages from the BCRDM is not received.

The rear driver side falcon door may not function as expected.

VCLEFT_a599_LVBatteryTypeUnsupported

The low voltage (LV) battery type reported by the vehicle gateway (GTW) configuration is a battery type not supported by this controller / firmware.

The LV battery type indicated by the GTW configuration value is an LV battery type not supported by this controller / firmware.

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.

VCLEFT_a599_frunkLatchDisabled

The front trunk (frunk) latch has been disabled. The frunk latch enable routine must be run to restore latch function.

The vehicle frunk latch has been set to disabled in the controller's non-volatile memory (NVM).

No frunk latch movement or function, even if frunk latch is connected.

VCLEFT_a598_LVBMBeFuseSelfTestFailed

The vehicle controller detects the low voltage (LV) battery internal protection transistor (MOSFET) self test has failed, indicating one or more conditions affecting MOSFET functionality.

Any part of the LV battery internal protection transistor (MOSFET) self test reports a failure. Alert log signal data should provide more information.

LV battery internal protection transistor (MOSFET) functionality is not confirmed. The LV battery may be unable to support vehicle electrical systems or to recharge via the power conversion system (PCS).

VCLEFT_a600_currentSensorMismatch

The current measurement reported by the LV battery (LVBMS_packCurrent) does not match the current sensor on the vehicle controller LV battery feed (IBSCurrent).

The absolute value of current difference between LVBMS_packCurrent and IBSCurrent exceeds nominal expectations

Incorrect battery current data being used, resulting in sub-optimal LV battery management.

VCLEFT_a595_steeringWheelSwitchMIA

Steering wheel switchpack not responding on Local Interconnect Network (LIN).

Steering wheel switchpack not responding on LIN

Steering wheel switchpack will not function

VCLEFT_a597_LVBMBeFuseSelfTestNotReady

The low voltage (LV) battery internal protection transistor (MOSFET) self test has not yet completed.

The LV battery internal protection transistor (MOSFET) self test has not yet completed, potentially because a condition or combination of conditions prevents it from running. Alert log signal data should provide more information.

Vehicle is unable to shift out of Park (P) until the LV battery internal protection transistor (MOSFET) self test completes or times out without completing. If the self test cannot complete and confirm LV battery MOSFET functionality, the LV battery may be unable to support vehicle electrical systems or to recharge via the power conversion system (PCS).

VCLEFT_a617_APP_MIA

One or more of the expected CAN messages from APP were not received.

A message the local ECU expects to receive from the APP ECU hasn't been received within the expected timeout or the drop rate is too high while the APP is CAN active. The ECU is considered CAN active when VCFRONT_chGoToSleep is 0.

Autopilot functionality may be missing.

VCLEFT_a593_seatEncOverThighSupport

The Thigh Support Motor traveled beyond the expected range.

Seat position goes outside the acceptable range

Seat may be in an unstable position or a mechanism may failed

VCLEFT_a592_seatUncalThighSupport

The Thigh Support Motor is uncalibrated.

The motor is uncalibrated

Seat position recall may be unavailable

VCLEFT_a592_vehicleLoadShed

The low voltage (LV) battery is no longer supported by the power conversion system (PCS) due to a condition affecting the LV system. The vehicle low voltage electrical system needs to shed electrical loads by cutting power to some systems / electronic control units (ECUs).

Low voltage (LV) battery is not supported by the power conversion system (PCS)

All nonessential features / components will no longer be available, with support reserved for critical functions like operating doors, windows, exterior lights, and front trunk (frunk).

VCREAR_a123_Uc

Motor current was lower than expected.

Motor current measurement, with calibration offset subtracted, was lower than 0.25 amps

Caliper could be disconnected or the harness is damaged.

VCLEFT_a594_seatThighSupportStallDebug

The Thigh Support Motor unexpectedly stalls.

Current draw exceeds stall limit.

The motor may recalibrate if the stall is in an expected region.

VCLEFT_a590_seatEncStallThighSupport

The Thigh Support Motor is not providing encoder feedback.

The current draw is not zero and the motor is not stalling, but the encoder values do not increase.

Seat memory recall may be unavailable.

VCLEFT_a588_driveBlockedByTentMode

User notification that drive is blocked while Tent Mode is active.

Tent Mode has been activated via the vehicle touchscreen (UI), and a brake pedal press / attempt to exit Park (P) is detected.

The vehicle is unable to drive.

VCLEFT_a591_seatCurrUnderThighSupport

The Thigh Support Motor current is below the expected threshold, causing the motor to be unresponsive.

The motor current is below the expected threshold

Seat may be unable to move.

Alerts

Alerts