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Inconsistent Regenerative Braking on 2025 Lucid Gravity

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Mike T. · rep 0 · May 25, 5:14 AM · 1 replies · solved · Question

Vehicle: 2025 Lucid Gravity Touring

Hey everyone, I recently got my 2025 Lucid Gravity (first few thousand miles), and I've noticed some odd behavior with the regenerative braking system. Sometimes it feels very strong and smooth, providing significant deceleration as expected. Other times, it feels much weaker, almost like it's barely engaging, and I have to rely more on the friction brakes.

There are also occasional moments where the regen braking feels a bit jerky or inconsistent, especially when coming to a stop or in stop-and-go traffic. It makes it hard to predict the car's deceleration. I've tried adjusting the regen settings, but the inconsistency persists.

Is this a known issue with the Lucid Gravity or other Lucid models? Could it be related to battery temperature, state of charge, or something else entirely?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 5:14 AM

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ClearTheCode admin answer:

Inconsistent regenerative braking can certainly impact driving feel and confidence. For your 2025 Lucid Gravity, several factors can influence regen performance:

Possible Causes:

  1. Battery State of Charge (SOC): When the battery is near 100% full, the vehicle has nowhere to send the regenerated energy, so regen braking will be significantly reduced or unavailable. As the SOC drops, regen typically becomes stronger.
  2. Battery Temperature: Extremely cold or hot battery temperatures can limit regenerative braking. The Battery Management System (BMS) will reduce regen to protect the battery from damage.
  3. Driver-Selectable Regen Settings: While you've adjusted these, ensure they haven't inadvertently been changed or reset.
  4. Brake System Interaction: Modern EVs blend regenerative braking with traditional friction brakes. Inconsistencies could arise if the blending algorithm isn't working perfectly, or if there's a minor issue with the brake system control module.
  5. Software Glitches: As with many advanced vehicle systems, a software bug could cause erratic regen behavior. Ensuring your vehicle's software is up to date is crucial.
  6. Motor or Inverter Issues: Less likely for inconsistency, but if there's an underlying issue with an electric motor or its inverter, it could affect its ability to generate power during deceleration.

When to See a Shop:

If the inconsistency is pronounced, makes driving unpredictable, or is not explained by SOC or temperature, it's best to have it checked. While some variation is normal, jerky or significantly weakened regen when the battery is not full or extremely cold warrants professional diagnosis.

Diagnostics:

Lucid service will:

  • Review your vehicle's data logs for any anomalies in battery temperature, SOC, and motor performance during braking.
  • Check for OBD codes related to the brake system, motor control, or battery management (e.g., C0200 - Brake System Control Module Fault, P0A0F - High Voltage System Interlock Circuit Performance, or specific motor/inverter codes if related to energy recovery).
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