Alerts
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| Signal Name | Description | Condition | Impact |
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Regenerative braking (regen) backfill braking torque is unavailable, requiring driver to apply brake pedal more frequently to decelerate / stop.
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External Brake Request (EBR) or active damping is unavailable.
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Drive inverter may not be able to supply the expected deceleration torque normally supplied by regenerative braking (regen) when braking. Driver will need to apply brake pedal more frequently to decelerate and stop.
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Fault of the front right active wheel speed sensor.
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Sensor not operating correctly
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Traction control and stability control may fault due to this error. The vehicle should be driven with extreme caution if these sytems are faulted.
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The drive interface (DI) electronic control unit (ECU) detects that the installed tire type has changed.
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The detected tire type has changed
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The top speed may have changed, and the user's top speed override has been reset
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This alert tells the user how to enter Neutral (N) when the drive interface (DI) electronic control unit (ECU) detects that the stalk is in N position for less than the required time of 1 second, causing a N drive mode request to not complete. The user must hold the stalk in the first detent to enter N.
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Stalk is detected in N position (first detent) for less than 1 second, causing a Neutral (N) drive mode request to not complete.
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No impact on vehicle function. This alert is intended to help the user enter N. User may be experiencing difficulty entering Neutral when the alert is set.
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The drive interface (DI) electronic control unit (ECU) detects that the electronic park brake (EPC) ECU is missing (MIA) and as a result cannot honor the park request.
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The DI ECU does not receive the expected CAN messages from the EPB ECU.
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The parking brake is not set.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a 5V supply is under voltage.
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The FPGA detects a 5V supply regulator PGOOD is not working as expected.
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Readings from 5V sensors may become erratic.
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The drive interface (DI) electronic control unit (ECU) detects that the high voltage (HV) battery pack is over voltage enough to temporarily disable regenerative braking.
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The DI ECU detects that the HV battery pack voltage is significantly over the max bus voltage while the vehicle is in Drive or Reverse.
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The DI ECU may disable regenerative braking.
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The drive interface (DI) electronic control unit (ECU) detects that the high voltage interlock loop (HVIL) is not closed.
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Any DI unit reports the HVIL status as missing or not closed.
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Contactors may not close.
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The drive interface (DI) electronic control unit (ECU) detects in hardware that the accelerator pedal power supply is under voltage.
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The DI ECU detects that any accelerator pedal supply rail is out of rational range.
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Vehicle drive torque immediately disabled.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery undervoltage event.
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LV supply voltage to DI is disconnected or drops below lower voltage threshold.
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The DI ECU triggers limp mode (see separate limpMode alerts) and cannot produce torque or power.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a condition that leads to the pedal monitor (PM) disabling powertrain.
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The PM detects a condition that requires it to intervene and disable powertrain.
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Vehicle drive torque is immediately disabled.
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The pedal monitor (PM) requests that the drive interface (DI) electronic control unit (ECU) shift into a non-torque gear (Park or Neutral) at a low speed.
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The DI ECU receives a shift request from the PM when vehicle speed is below 1 mph (1.6 km/h).
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The DI ECU shifts to Park without user request.
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The drive interface (DI) electronic control unit (ECU) detects an issue with the immobilizer.
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The DI ECU detects that immobilizer authentication failed or it has been bypassed.
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Shift out of Park is blocked.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a RAM read or embedded conveyor controller (ECC) flash fetch issue.
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The DI ECU detects an uncorrectable flash or RAM error.
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This alert is for diagnostic logging purposes only.
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The drive interface (DI) electronic control unit (ECU) detects in software that a reference voltage supplied to the accelerator pedal sensor is out of bounds.
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Set when any accelerator pedal supply rail is out of rational range for 200ms.
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Vehicle drive torque immediately disabled.
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The drive interface (DI) electronic control unit (ECU) detects that the ultrasonic sensor module (USM) controller area network (CAN) node is missing (MIA).
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DI is not receiving CAN communication from USM and is considered irrational or missing.
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PM system is unable to determine USM state.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) resets for an unintended reason, such as a watchdog timeout.
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The DI ECU resets for an unintended reason. Alert log signal data should provide more information on the specific reason.
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The DI ECU is unavailable while it resets.
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Drive Inverter Slave Warning: High-torque mechanical wear limit reached
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Drive Inverter Slave Warning: Gateway configuration mismatch
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Drive Inverter Slave Warning: Wheel Speed Irrational
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