MyTeslaMate App

Signal Name	Description	Condition	Impact	Important
VCREAR_a202_remoteEpbConfigIncompatible	EPB's brake HW config is not compatible remote EPB's brake HW config	Remote EPB is present and local EPB has learnt brake HW config but is not compatible with remote brake HW config	Remote and local EPB brake HW config is incompatible, parking brake function may be degraded	No
VCREAR_a137_PvUv	Motor positive lead voltage is lower than expected while active	The positive lead voltage measurement is lower than expected. The expected value is the lower of 16.5 volts, or the estimated PWM voltage.	Caliper motor or harness may be damaged	No
VCREAR_a274_rightRearMarkerLightFault	A condition affecting the right rear side marker light has been detected.	The right rear side marker light driver reports a condition affecting its operation.	The right rear side marker light may not operate as expected.	No
VCREAR_a170_12vOv	The battery voltage measurement, nominally 12 volts, was higher than expected.	The vbat voltage measurement is higher than 18.5 volts.	12V Battery or low voltage systems may be damaged	No
VCREAR_a187_cdpDynamic	Stability Control has begun Controlled Deceleration for Parking Brake	ESM_state == ESM_DYNAMIC_EXTERNAL	Stability Control is actuating, Electronic Parking Brake may be idle faulted	No
VCREAR_a203_hwBrakeTypeMismatch	Electronic Parking Brake's learned configuration does not match the reported config from the gateway	Electronic Parking Brake HW type does not match HW type reported by gateway and 5 seconds have passed since gateway booted up	Hardware does not match current configuration, parking brake function may be degraded	No
VCREAR_a244_WinchModeActive	Non user facing alert set for service set when winch mode is active	Enter ESM_WINCHMODE	Electronic Parking Brake will be released	No
VCREAR_a139_NvmRedundancyLoss	The Electronic Parking Brake or Electronic Parking Brake Monitor took longer than expected to save caliper state in non-volatile memory.	Caliper state saved to Electronic Parking Brake and Electronic Parking Brake Monitor mismatched for more than 500ms	Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch	No
VCREAR_a141_invalidState	The Electronic Parking Brake made an unexpected state transition.	Electronic Parking Brake moved between states that are not marked as having a valid transition.	Logical bug in the software	No
VCREAR_a142_EGGREAR1_MIA	One or more of the expected CAN messages from the Etherloop Generalized Gateway Rear (Core 1) were not received, indicating the EGGREAR1 ECU may be unavailable (MIA).	The local ECU does not receive one or more of the expected messages from the EGGREAR1 within the expected time frame.	Vehicle functions that depend on the EGGREAR1 may be unavailable or may not function as expected.	No
VCREAR_a133_DI_MIA	One or more of the messages the vehicle controller receives periodically from the front drive inverter (DIF) electronic control unit (ECU) is not received, indicating the DIF ECU may be unavailable (MIA).	One or more of the expected messages from the DIF ECU is not received.	Vehicle speed and power may be limited. Thermal management system features depending on DIF functionality may be limited or unavailable.	No
VCREAR_a144_EGGLEFTVC_MIA	One or more of the expected CAN messages from the Etherloop Generalized Gateway Left (Core 1) were not received, indicating the EGGLEFTVC ECU may be unavailable (MIA).	The local ECU does not receive one or more of the expected messages from the EGGLEFTVC within the expected time frame.	Vehicle functions that depend on the EGGLEFTVC may be unavailable or may not function as expected.	No
VCREAR_a138_NvmDualFailure	The Electronic Parking Brake and Electronic Parking Brake Monitor took longer than expected to save caliper state in non-volatile memory.	Caliper state saved to Electronic Parking Brake and Electronic Parking Brake Monitor mismatched	Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch	No
VCREAR_a145_epbRecoveryLimpActivated	Recovery limp mode activated based on user acknowledgment of possible shutdown and limited drive torque / functionality.	User acknowledges limited drive torque and possible shutdown, after steering system has been detected as partially compromised and vehicle has been brought to a stop, and shifts out of Park.	Vehicle speed limited to less than 5 mph. Brakes eventually applied automatically to bring vehicle to a stop.	No
VCREAR_a167_VCDOORFR_MIA	One or more of the messages the vehicle controller receives periodically from the front right door controller (VCDOORFR) is not received, indicating the VCDOORFR may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCDOORFR within the expected time frame.	Vehicle functions that depend on the VCDOORFR may be unavailable or may not function as expected.	No
VCREAR_a132_EGGRIGHT3_MIA	One or more of the expected CAN messages from the Etherloop Generalized Gateway Right (Core 3) were not received, indicating the EGGRIGHT3 ECU may be unavailable (MIA).	The local ECU does not receive one or more of the expected messages from the EGGRIGHT3 within the expected time frame.	Vehicle functions that depend on the EGGRIGHT3 may be unavailable or may not function as expected.	No
VCREAR_a183_cdpNotAvailable	Stability Control reports Controlled Deceleration for Parking Brake is not available when car is in DRIVE	(ESP_cdpStatus == CDP_IS_NOT_AVAILABLE or VCLEFT/VCRIGHT_okayToRequestCDP == EPB_EXTERNAL_APPLY_INVALID) when VCFRONT_vehiclePowerState == VEHICLE_POWER_STATE_DRIVE	Electronic Parking Brake Monitor and/or Stability Control are faulted, Controlled Deceleration for Parking Brake cannot be performed	No
VCREAR_a125_IdleVMismatch	The caliper may be disconnected.	The Electronic Parking Brake motor is idle, and the positive and negative lead's voltage measurement are more than 0.25V different	Electronic Parking Brake may not be able to apply or release	No
VCREAR_a126_MotorNVoltLow	Motor negative lead voltage measurement is less than 0.5 volts while inactive	The Electronic Parking Brake motor is idle, and the negative lead voltage measurement is lower than 0.5 volts.	Caliper motor or harness may be damaged	No
VCREAR_a127_MotorNVoltHigh	Motor negative lead voltage is greater than 6.0 volts while inactive	The Electronic Parking Brake motor is idle, and the negative lead voltage measurement is higher than 6.0 volts.	Caliper motor or harness may be damaged	No

VCREAR_a202_remoteEpbConfigIncompatible

EPB's brake HW config is not compatible remote EPB's brake HW config

Remote EPB is present and local EPB has learnt brake HW config but is not compatible with remote brake HW config

Remote and local EPB brake HW config is incompatible, parking brake function may be degraded

No

VCREAR_a137_PvUv

Motor positive lead voltage is lower than expected while active

The positive lead voltage measurement is lower than expected. The expected value is the lower of 16.5 volts, or the estimated PWM voltage.

Caliper motor or harness may be damaged

No

VCREAR_a274_rightRearMarkerLightFault

A condition affecting the right rear side marker light has been detected.

The right rear side marker light driver reports a condition affecting its operation.

The right rear side marker light may not operate as expected.

No

VCREAR_a170_12vOv

The battery voltage measurement, nominally 12 volts, was higher than expected.

The vbat voltage measurement is higher than 18.5 volts.

12V Battery or low voltage systems may be damaged

No

VCREAR_a187_cdpDynamic

Stability Control has begun Controlled Deceleration for Parking Brake

ESM_state == ESM_DYNAMIC_EXTERNAL

Stability Control is actuating, Electronic Parking Brake may be idle faulted

No

VCREAR_a203_hwBrakeTypeMismatch

Electronic Parking Brake's learned configuration does not match the reported config from the gateway

Electronic Parking Brake HW type does not match HW type reported by gateway and 5 seconds have passed since gateway booted up

Hardware does not match current configuration, parking brake function may be degraded

No

VCREAR_a244_WinchModeActive

Non user facing alert set for service set when winch mode is active

Enter ESM_WINCHMODE

Electronic Parking Brake will be released

No

VCREAR_a139_NvmRedundancyLoss

The Electronic Parking Brake or Electronic Parking Brake Monitor took longer than expected to save caliper state in non-volatile memory.

Caliper state saved to Electronic Parking Brake and Electronic Parking Brake Monitor mismatched for more than 500ms

Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch

No

VCREAR_a141_invalidState

The Electronic Parking Brake made an unexpected state transition.

Electronic Parking Brake moved between states that are not marked as having a valid transition.

Logical bug in the software

No

VCREAR_a142_EGGREAR1_MIA

One or more of the expected CAN messages from the Etherloop Generalized Gateway Rear (Core 1) were not received, indicating the EGGREAR1 ECU may be unavailable (MIA).

The local ECU does not receive one or more of the expected messages from the EGGREAR1 within the expected time frame.

Vehicle functions that depend on the EGGREAR1 may be unavailable or may not function as expected.

No

VCREAR_a133_DI_MIA

One or more of the messages the vehicle controller receives periodically from the front drive inverter (DIF) electronic control unit (ECU) is not received, indicating the DIF ECU may be unavailable (MIA).

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

Vehicle speed and power may be limited. Thermal management system features depending on DIF functionality may be limited or unavailable.

No

VCREAR_a144_EGGLEFTVC_MIA

One or more of the expected CAN messages from the Etherloop Generalized Gateway Left (Core 1) were not received, indicating the EGGLEFTVC ECU may be unavailable (MIA).

The local ECU does not receive one or more of the expected messages from the EGGLEFTVC within the expected time frame.

Vehicle functions that depend on the EGGLEFTVC may be unavailable or may not function as expected.

No

VCREAR_a138_NvmDualFailure

The Electronic Parking Brake and Electronic Parking Brake Monitor took longer than expected to save caliper state in non-volatile memory.

Caliper state saved to Electronic Parking Brake and Electronic Parking Brake Monitor mismatched

Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch

No

VCREAR_a145_epbRecoveryLimpActivated

Recovery limp mode activated based on user acknowledgment of possible shutdown and limited drive torque / functionality.

User acknowledges limited drive torque and possible shutdown, after steering system has been detected as partially compromised and vehicle has been brought to a stop, and shifts out of Park.

Vehicle speed limited to less than 5 mph. Brakes eventually applied automatically to bring vehicle to a stop.

No

VCREAR_a167_VCDOORFR_MIA

One or more of the messages the vehicle controller receives periodically from the front right door controller (VCDOORFR) is not received, indicating the VCDOORFR may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the VCDOORFR within the expected time frame.

Vehicle functions that depend on the VCDOORFR may be unavailable or may not function as expected.

No

VCREAR_a132_EGGRIGHT3_MIA

One or more of the expected CAN messages from the Etherloop Generalized Gateway Right (Core 3) were not received, indicating the EGGRIGHT3 ECU may be unavailable (MIA).

The local ECU does not receive one or more of the expected messages from the EGGRIGHT3 within the expected time frame.

Vehicle functions that depend on the EGGRIGHT3 may be unavailable or may not function as expected.

No

VCREAR_a183_cdpNotAvailable

Stability Control reports Controlled Deceleration for Parking Brake is not available when car is in DRIVE

(ESP_cdpStatus == CDP_IS_NOT_AVAILABLE or VCLEFT/VCRIGHT_okayToRequestCDP == EPB_EXTERNAL_APPLY_INVALID) when VCFRONT_vehiclePowerState == VEHICLE_POWER_STATE_DRIVE

Electronic Parking Brake Monitor and/or Stability Control are faulted, Controlled Deceleration for Parking Brake cannot be performed

No

VCREAR_a125_IdleVMismatch

The caliper may be disconnected.

The Electronic Parking Brake motor is idle, and the positive and negative lead's voltage measurement are more than 0.25V different

Electronic Parking Brake may not be able to apply or release

No

VCREAR_a126_MotorNVoltLow

Motor negative lead voltage measurement is less than 0.5 volts while inactive

The Electronic Parking Brake motor is idle, and the negative lead voltage measurement is lower than 0.5 volts.

Caliper motor or harness may be damaged

No

VCREAR_a127_MotorNVoltHigh

Motor negative lead voltage is greater than 6.0 volts while inactive

The Electronic Parking Brake motor is idle, and the negative lead voltage measurement is higher than 6.0 volts.

Caliper motor or harness may be damaged

No

Alerts

Alerts