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2023 Lucid Air Pure: 'Reduced Propulsion Power' and Limp Mode Engaged

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Mike T. · rep 0 · May 25, 5:13 AM · 1 replies · solved · Question

Vehicle: 2023 Lucid Air Pure

I'm having an issue with my 2023 Lucid Air Pure. While driving on the highway yesterday, I suddenly got a 'Reduced Propulsion Power' warning on the display, and the car immediately felt sluggish, like it went into a limp mode. I pulled over, turned it off, waited a few minutes, and turned it back on, but the warning persists, and the power is still significantly limited.

There isn't an obvious OBD-II code showing on my basic scanner, but the car is clearly not operating normally. It feels like the acceleration is capped, and I can't go above 40 mph. Has anyone else experienced this 'Reduced Propulsion Power' message in their Lucid Air, and what was the underlying cause? Could it be something with the motor, inverter, or battery management system?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 5:13 AM

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ClearTheCode admin answer:

The 'Reduced Propulsion Power' message on your 2023 Lucid Air Pure, coupled with a noticeable loss of power and limp mode, indicates a significant issue within the high-voltage propulsion system. While your basic scanner might not show a generic P-code, the vehicle's internal diagnostic system will have stored specific fault codes that a Lucid service center or an advanced EV-capable scanner can retrieve.

  1. Safety First: When this warning appears, the car's system is protecting itself from further damage. Avoid driving at high speeds or putting excessive load on the motor. Drive directly to a safe location or contact Lucid Roadside Assistance.

  2. Diagnostic Scan: A professional diagnostic scan is crucial. This will reveal specific manufacturer codes (e.g., related to the inverter, motor, or battery) that point to the exact component causing the issue. Generic OBD-II scanners often miss these EV-specific codes.

Common Causes for 'Reduced Propulsion Power':

  • Traction Motor/Inverter Issues: Problems with the electric motor itself, or the inverter that converts DC battery power to AC for the motor, are common causes. This could be a sensor fault, an overheating component, or an internal malfunction.
  • High-Voltage Battery Management System (BMS) Fault: The BMS monitors the health, temperature, and voltage of individual battery cells. A fault here could trigger reduced power to protect the battery pack.
  • Thermal Management System Problems: Overheating of the battery, motors, or inverter can cause the car to limit power to prevent damage. This could be due to a coolant leak, a faulty pump, or a blocked radiator.
  • High-Voltage Contactor Issues: These relays connect and disconnect the high-voltage battery from the rest of the propulsion system. A fault here can interrupt power flow.

When to See a Shop: Given the severity of 'Reduced Propulsion Power' and limp mode, it is imperative to have your Lucid Air inspected by a certified Lucid service technician immediately. This is not a DIY fix. Driving with this condition can potentially lead to further damage to expensive high-voltage components. The vehicle needs specialized tools and expertise for proper diagnosis and repair.

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