Alerts

Alerts

Signal Name Description Condition Impact
Electronic Parking Brake apply failed.
Electronic Parking Brake faulted during apply && (nonterminal == TRUE) && (stateRequest != ESM_DYNAMIC)
Electronic Parking Brake may not be applied, and caliper may be obstructed
Electronic Parking Brake was unable to release fully.
Electronic Parking Brake faulted during release && (nonterminal == TRUE)
Electronic Parking Brake may not be released, and caliper may be obstructed
Power Conversion System (PCS) Overvoltage Shutdown protection has become active on the Rear Vehicle Controller (VCREAR).
Overvoltage condition on 48V bus detected by VCREAR while the vehicle is in drive.
PCS is unavailable due to overvoltage shutdown protection becoming active. Separate LVUnhealthy alert indicating a condition affecting low voltage (LV) electrical system will also be present.
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
Electronic Parking Brake release was interrupted. Release will be retried.
(unitFaultStatus == FAULT_STATUS_RETRY) && (csmRequest == release)
Electronic Parking Brake did not release, it will retry a release and enter fault if retry fails
Electronic Parking Brake apply failed.
Electronic Parking Brake faulted during apply && (nonterminal == FALSE)
Electronic Parking Brake apply in progress will be stopped due to the fault, caliper may not be fully applied
Electronic Parking Brake apply was interrupted. Apply will be retried.
(unitFaultStatus == FAULT_STATUS_RETRY) && (csmRequest == apply) && (stateRequest != ESM_DYNAMIC)
Electronic Parking Brake did not apply, it will retry an apply and enter fault if retry fails
Electronic Parking Brake was unable to release due to fault.
Electronic Parking Brake faulted during release && (nonterminal == FALSE)
Electronic Parking Brake release in progress will be stopped due to the fault, caliper may not have fully released
Power Conversion System (PCS) overvoltage clamp protection has tripped on the Rear Vehicle Controller (VCREAR).
48V bus is reported greater than 56V on VCREAR while the PVS overvoltage clamp protection is armed.
This alert is primarily informational and is used for logging purposes. No expected impact on vehicle functionality.
The communication link between Electronic Parking Brake (EPB) and Electronic Parking Brake Monitor (EPBM) is not functioning as expected.
Either the Cyclic Redundancy Check (CRC) check has not completed as expected, or a message has not been received for 100ms. Alert disabled during over-the-air (OTA) firmware updates.
Electronic Parking Brake will not apply or release.
Electronic Parking Brake was not able to determine caliper state on boot.
Caliper state saved is unknown, corrupted, or mismatches Electronic Parking Brake Monitor
Problem with initializing Electronic Parking Brake
The Thigh Support Motor unexpectedly stalls
Current draw exceeds stall limit.
The motor may recalibrate if the stall is in an expected region.
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
Motor negative lead voltage is lower than expected while active
The negative 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
Motor positive lead voltage is higher than expected while active
The positive lead voltage measurement is higher than expected. This could be higher than 0.1 voltages if motor is driven in release direction, or higher than estimated PWM voltage if driven in the apply direction.
Caliper motor or harness may be damaged
One or more of the messages the vehicle controller receives periodically from the rear left door controller (VCDOORRL) is not received, indicating the VCDOORRL may be unavailable (MIA).
The vehicle controller does not receive one or more of the expected messages from the VCDOORRL within the expected time frame.
Vehicle functions that depend on the VCDOORRL may be unavailable or may not function as expected.
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
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.
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.
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.