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2022 Lucid Air Pure ADAS sensor failure - parking assist not working

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Mike T. · rep 0 · May 25, 5:17 AM · 1 replies · solved · Question

Vehicle: 2022 Lucid Air Pure

My 2022 Lucid Air Pure is having issues with its Advanced Driver-Assistance Systems (ADAS). Specifically, the parking assist sensors seem to be failing. I get constant 'check parking assist system' warnings, and sometimes it gives false positives, beeping wildly when there's nothing near me, or simply doesn't detect obstacles at all.

It's making parking a nightmare, and I'm concerned about other ADAS features being affected. I've tried cleaning the sensors on the bumpers, but that hasn't helped. Has anyone else experienced this with their Lucid Air? Could it be a software glitch or a hardware problem with the sensors themselves?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 5:17 AM

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ClearTheCode admin answer:

ADAS sensor failures, particularly with parking assist, can be a safety concern and point to issues within the vehicle's complex electrical and sensor network. Here’s what you should know:

  1. Initial Troubleshooting:

    • Clean Sensors Thoroughly: While you've tried cleaning, ensure there's absolutely no dirt, ice, or residue covering the ultrasonic sensors (small circular pucks on the bumpers). Even a thin film can disrupt their operation. Use a soft cloth and mild soap if necessary.
    • Check for Physical Damage: Inspect the bumpers for any minor impacts or dents that might have misaligned or damaged a sensor. Even a slight displacement can affect functionality.
    • Software Update: Ensure your Lucid Air's software is up to date. Sometimes, ADAS glitches are resolved with over-the-air (OTA) updates that recalibrate or fix software bugs.

  2. Common Causes:

    • Faulty Ultrasonic Sensor: Individual sensors can fail due to internal defects, water intrusion, or physical damage. When one sensor malfunctions, it can disrupt the entire system.
    • Wiring Harness Issues: Damaged or corroded wiring connected to the sensors or the ADAS control module can lead to intermittent or complete sensor failure.
    • ADAS Control Module Malfunction: The central module that processes data from all ADAS sensors can develop internal faults, leading to system-wide errors.
    • Calibration Issues: After a minor collision or even a significant bump, sensors might become miscalibrated, requiring professional recalibration.

  3. Relevant OBD Codes (if available via advanced scanner):

    • B0020: Front Left Ultrasonic Sensor Malfunction
    • B0021: Front Right Ultrasonic Sensor Malfunction
    • B0022: Rear Left Ultrasonic Sensor Malfunction
    • B0023: Rear Right Ultrasonic Sensor Malfunction
    • U0422: Invalid Data Received from Body Control Module (general communication issue that might affect ADAS).

When to See a Shop: If cleaning and software updates don't resolve the issue, or if you're getting persistent warnings and unreliable performance, it's essential to visit a Lucid service center. ADAS systems are critical for safety and require specialized diagnostic tools and expertise for repair and recalibration. Do not attempt to repair these systems yourself, as it could compromise vehicle safety.

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