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2022 QX55 ProPILOT Assist Malfunction Warning - What does it mean?

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Tom H. · rep 0 · May 22, 5:10 AM · 1 replies · solved · Question

Vehicle: 2022 Infiniti QX55 Essential

I just got my 2022 Infiniti QX55 Essential a few months ago, and I'm already getting a "ProPILOT Assist Malfunction" warning on the dash. It's really frustrating because the car is so new. The warning comes and goes, but when it's active, none of the driver-assist features work – no adaptive cruise control, no lane keeping, nothing.

I haven't been in any accidents or had any impacts to the front or rear of the car. Is this a common bug with the ProPILOT Assist system in the QX55, or could it be something serious that needs immediate attention? What should I check before taking it to the dealer, or is it best to just go straight there?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:10 AM

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ClearTheCode admin answer:

It's definitely concerning to see a ProPILOT Assist Malfunction warning on a brand new 2022 Infiniti QX55. These advanced driver-assist systems (ADAS) rely on a complex network of sensors and cameras, and warnings can pop up for various reasons. Here’s what you should know:

  1. Common Causes for ADAS Malfunctions:

    • Sensor Obstruction: This is the most frequent cause. Dirt, mud, snow, ice, or even heavy rain can temporarily block the radar sensor (usually behind the front Infiniti emblem) or the camera (at the top of the windshield). Ensure these areas are clean and clear.
    • Environmental Factors: Direct sunlight, heavy fog, or strong electromagnetic interference can sometimes confuse the sensors.
    • Calibration Issues: If a sensor or camera has been bumped, even slightly, or if the vehicle's alignment is off, the system may require recalibration. This is a precise process usually done by a dealership.
    • Software Glitches: Like any complex electronic system, software bugs can occur. Sometimes a simple system reset (turning the car off and on) can clear a temporary glitch.
    • Wiring or Module Faults: Less common in new vehicles, but a loose connection or a faulty control module for one of the ADAS components could be the culprit. This would likely trigger specific diagnostic trouble codes (DTCs) in the system, often U-codes (e.g., U0100 for lost communication with a control module).

  2. What to Check Yourself:

    • Clean Sensors: Thoroughly clean the front Infiniti emblem area and the windshield around the camera housing.
    • Check for Damage: Visually inspect the front bumper for any minor impacts or misalignments that could affect the radar sensor.

  3. TSBs and Recalls: While specific recalls for this exact issue might not be widespread, Infiniti does issue TSBs for ADAS system updates or known sensitivities. Your dealership can check for any relevant service bulletins for your QX55's VIN.

  4. When to See a Shop: Since your vehicle is new and under warranty, and the warning is persistent, your best course of action is to take it to an authorized Infiniti dealership. They have specialized diagnostic tools to read specific ADAS fault codes and perform necessary recalibrations or repairs. Do not attempt to diagnose or repair complex ADAS components yourself, as improper handling can compromise safety features.

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