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2016 Model X Falcon Wing Door Malfunction - Not Closing Properly, Sensor Issues?

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Paul Z. · rep 0 · May 22, 5:28 AM · 1 replies · solved · Question

Vehicle: 2016 Tesla Model X 90D

Hey everyone,

I'm having a persistent problem with the passenger side Falcon Wing Door on my 2016 Tesla Model X 90D. It often struggles to close completely, sometimes stopping halfway or reversing direction. I get warnings on the screen about obstructions, even when there's nothing there.

This has been happening more frequently lately, and it's becoming a real headache. I've tried cleaning the sensors around the door edges, but it hasn't made a difference. It seems like the sensors are overly sensitive or perhaps faulty.

Is this a common issue for early Model X vehicles? What are the typical causes and fixes for Falcon Wing Door problems? Any advice on what to tell the service center would be greatly appreciated.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:28 AM

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ClearTheCode admin answer:

Falcon Wing Door (FWD) malfunctions were a notable concern for early production Tesla Model X vehicles. While Tesla has made significant improvements over the years, older models can still experience issues.

  1. Common Causes:

    • Sensor Malfunction/Misalignment: The FWDs rely on a complex array of ultrasonic and capacitive sensors to detect obstructions. These sensors can become dirty, misaligned, or fail, leading to phantom obstruction warnings or improper operation. This is the most common cause of your described issue.
    • Wiring Harness Issues: Over time, the wiring harnesses that run through the door mechanisms can experience wear or damage, leading to intermittent connectivity issues for sensors or motors.
    • Motor/Actuator Problems: The motors that open and close the doors can sometimes weaken or fail, causing sluggish operation or incomplete closure.
    • Calibration Issues: The FWDs require precise calibration. If the calibration is off, the door might not know its correct open/close limits.

  2. Troubleshooting Steps:

    • Clean Sensors: You've done this, but ensure all visible sensors (along the door edges, roofline, and body) are spotless.
    • Soft Reset: Perform a soft reset of the vehicle (hold both scroll wheels on the steering wheel until the screen reboots). This can sometimes clear minor software glitches affecting door operation.
    • Manual Close (Caution): In emergencies, you can sometimes manually assist the door to close, but avoid forcing it if there's resistance, as this can cause further damage.

  3. OBD Codes: FWD issues typically do not generate standard OBD-II codes. Tesla's internal diagnostic system will log specific fault codes related to the FWD module, sensor errors (e.g., FWD_sensor_fault), or motor issues, which a service technician can retrieve.

  4. When to See a Shop:

    • Immediately, as FWD malfunctions can be a safety hazard (e.g., not closing fully, trapping someone, or opening unexpectedly).
    • If cleaning sensors and reboots don't resolve the issue.
    • If you consistently receive obstruction warnings without any actual obstruction.

  5. Repair: Tesla service will likely perform diagnostics to pinpoint the exact sensor or component causing the issue. This could involve replacing faulty sensors, adjusting door alignment, or, in more severe cases, replacing motor assemblies or wiring harnesses. Given the complexity of the FWD system, this is a job best left to certified Tesla technicians.

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