The driver's side door latch assembly (Part Number LC5Z-54219A65-H) on my 2021 Lincoln Aviator with approximately 79,300 miles has begun intermittently failing to latch when the door is closed. This issue first started approximately three weeks ago. The driver's door often requires multiple attempts to close before the latch finally engages. When it does latch properly, a distinct loud click can be heard. Prior to that click, the door may appear closed but is not securely latched. This is a major safety concern...
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because there is no reliable way to know whether the driver's door will remain closed while the vehicle is being operated. I am concerned that the door could unexpectedly open while driving, creating a serious risk of injury to the driver, passengers, and other motorists. I contacted my Lincoln dealership and was informed that the replacement door latch was on backorder. The dealership advised that there were approximately 80 other requests for the same part. This raises concerns that the issue may be more widespread than an isolated failure. The vehicle is scheduled for repair on November 6, 2026. I have been advised the repair will require the vehicle to remain at the dealership for more than one day. The vehicle was previously involved in a front-end collision; however, the damage was limited to the front bumper and related electronic components. There was no damage to the driver's door, door frame, latch assembly, or surrounding door structure. The current door latch failure developed long after the front-end repairs and appears unrelated to that accident. Because the driver's door latch is a critical safety component, I believe this condition warrants investigation. A door that does not consistently latch and remain secured during vehicle operation presents a significant safety hazard.