Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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The Electronic Stability Program (ESP) determines that an emergency stop may be required, causing the Hydraulic Brake Assist (HBA) to be activated. The ESP may also increase the brake pressure by running the ESP pump.
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The HBA is activated as the operating speed of the brake pedal exceeds the maximum threshold.
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The ESP may increase the brake pressure.
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Trailer Sway Mitigation (TSM) is activated as the Electronic Stability Program (ESP) detects the vehicle and trailer may be swaying. The ESP may activate the brakes to help stabilize the vehicle and trailer.
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TSM is active.
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The ESP may activate the brakes to help prevent the vehicle and trailer from swaying.
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The Electronic Brake Force Distribution (EBD) is active due to early onset of brake related wheel slip(s) at one or more wheels.
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The EBD is active.
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No expected impact on vehicle functionality. The vehicle should be driven with caution due to the road conditions.
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The Tesla Vehicle Dynamics Controller (TVDC) is active due to lateral stability related wheel slip(s) at one or more wheels.
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The TVDC is active.
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No expected impact on vehicle functionality. The vehicle should be driven with caution due to the road conditions.
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Brake Torque Control (BTC) is active due to traction related wheels slip(s) at one or more wheels.
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BTC is active.
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No expected impact on vehicle functionality. The vehicle should be driven with caution due to the road conditions.
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The Electronic Stability Program (ESP) is active due to lateral stability related wheel slip(s) at one or more wheels.
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The ESP is active.
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No expected impact on vehicle functionality. The vehicle should be driven with caution due to the road conditions.
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The Anti-lock Braking System (ABS) is active due to brake related wheel slip(s) at one or more wheels.
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The ABS is active.
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No expected impact on vehicle functionality. The vehicle should be driven with caution due to the road conditions.
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WSS fault due to missing wheel speed signal.
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No stop pulses occurred on WSS
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Will disable VDC/TC and degrade ABS
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EPB_w059_battMismatch
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-
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WSS fault due to missing wheel speed signal.
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Wss fault due to missing wheel speed sensor signal
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Will disable VDC/TC and degrade ABS
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EPB_w053_epbNotReleased
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-
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EPB_w052_epbProblem
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-
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CAN overvoltage detected.
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CAN network voltage above specification
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VDC/TC disabled, EBR functionality disabled
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Motor current was higher than expected.
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Motor current measurement, with calibration offset subtracted, was higher than 17 amps.
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Caliper motor or harness may be damaged
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The 0 drive offset current captured as calibration was higher than expected.
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The calibration offset current measured when motor is not being driven was higher than 3.0 amps
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Caliper, Electronic Parking Brake controller, or harness could be damaged. Components may be damaged by high temperatures
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The caliper may be disconnected.
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The Electronic Parking Brake motor is idle, and the positive and negative lead's voltage measurement are more than 0.25V different
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Electronic Parking Brake may not be able to apply or release
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One or more expected controller area network (CAN) messages from the interior cabin radar (ICR) electronic control unit (ECU) was not received.
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An expected CAN message from the ICR ECU has not been received within the expected timeout, or the CAN message drop rate is too high while the ICR is CAN active. The ICR ECU is considered CAN active when VCFRONT_vehGoToSleep is 0.
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Intrusion alarm functionality may be missing.
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One or more of the messages the vehicle controller receives periodically from the Brake Booster (BB) is not received, indicating the BB may be unavailable (MIA).
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The vehicle controller does not receive one or more of the expected messages from the BB within the expected time frame.
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Vehicle functions that depend on the BB may be unavailable or may not function as expected.
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One or more of the messages the vehicle controller receives periodically from the Redundant Controller Unit (RCU) is not received, indicating the RCU may be unavailable (MIA).
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The vehicle controller does not receive one or more of the expected messages from the RCU within the expected time frame.
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Vehicle functions that depend on the RCU may be unavailable or may not function as expected.
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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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