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2023 Lucid Air Grand Touring - Reduced Power & "Service Required" Warning

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Tom H. · rep 0 · May 22, 7:25 AM · 1 replies · solved · Question

Vehicle: 2023 Lucid Air Grand Touring

Hey everyone, hoping someone here has experienced something similar or can offer some advice. I have a 2023 Lucid Air Grand Touring, and yesterday while driving, I suddenly felt a significant reduction in power. It wasn't a complete shutdown, but acceleration was severely limited, almost like it went into a "limp home" mode.

Immediately after the power reduction, a "Service Required" message popped up on the display, along with a general warning light. I pulled over, turned the car off and on again, but the message and reduced power persisted. I managed to drive it home slowly.

I don't have an advanced EV scan tool, just a basic OBD-II reader, but it didn't pull any generic P-codes. I'm worried about driving it further. Has anyone had their 2023 Lucid Air go into reduced power mode with a "Service Required" warning? What was the cause?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 7:25 AM

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ClearTheCode admin answer:

A "Service Required" message combined with reduced power in your 2023 Lucid Air Grand Touring indicates a significant fault within the vehicle's high-voltage or powertrain systems. While a basic OBD-II scanner might not show generic P-codes for all EV-specific issues, the vehicle's internal diagnostic system has detected a problem requiring immediate attention.

Here's what could be happening and what to do:

  1. Understand "Limp Mode": Your Lucid Air has entered a "limp home" or "reduced power" mode to protect critical components from further damage. This is a safety feature designed to allow you to drive the vehicle to a safe location or service center, but not for extended use.

  2. Potential Causes:

    • High-Voltage Battery System Fault: Issues with battery cell balancing, a faulty battery module, or a problem with the Battery Management System (BMS).
    • Electric Motor/Inverter Issues: A fault in one of the electric motors or the power inverter that converts DC battery power to AC for the motors.
    • Thermal Management System: Overheating in the battery, motors, or power electronics can trigger reduced power to prevent damage.
    • Charging System Fault: If a fault occurred during or after a recent charging session, it could manifest as a driveability issue.
    • Sensor Malfunction: A critical sensor providing incorrect data to the powertrain control module (PCM) or vehicle control unit (VCU).
    • Software Glitch: Less common, but a temporary software anomaly could sometimes trigger such a state.

  3. Next Steps:

    • Do Not Drive Extensively: Continuing to drive in reduced power mode could exacerbate the issue or cause further damage.
    • Check for Manufacturer-Specific Codes: A specialized EV diagnostic tool (like those used by Lucid service centers) would be able to read manufacturer-specific DTCs (Diagnostic Trouble Codes) that your basic OBD-II scanner cannot. These codes are crucial for pinpointing the exact system at fault.
    • Consult Your Owner's Manual: The manual might offer specific advice for a "Service Required" warning or reduced power mode.
    • Contact Lucid Service: This type of warning and power reduction almost always requires professional diagnosis and repair. Contact your nearest Lucid service center immediately to schedule an inspection. They have the proprietary diagnostic equipment and training to safely and accurately identify the root cause.

When to see a shop: You should arrange for your Lucid Air to be towed to a Lucid service center as soon as possible. Driving it in this condition is not recommended beyond getting it to a very nearby, safe location. This is a critical system fault that needs expert attention.

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