Lexus NX OEM Options Review: Cost & Results

Lexus NX Power Tailgate Upgrade: From Malfunction to Masterpiece

When the power tailgate on your Lexus NX stops working, it can be a significant inconvenience. This was the case for one owner who experienced a sudden failure in an aftermarket power tailgate system installed about 4-5 years prior. The system would only emit a buzzing sound when the button was pressed, indicating a malfunction. This review details the process of replacing the faulty system with a new, high-quality OEM-style upgrade, focusing on the installation, results, and overall value.

Understanding Power Tailgate Failures

Failures in aftermarket power tailgates, especially on vehicles like the Lexus NX, often stem from issues with the spindle shock motor or associated modules. A common problem is internal wiring breakage within the spindle shock absorber. Over time, repeated flexing of the wires can lead to a break, causing the system to malfunction. While repairing the broken wire is sometimes possible, if the system is several years old (like the 4-5 year old unit in this case), replacing it with a new unit is often a more reliable long-term solution to prevent recurring issues.

If your power tailgate fails to close, avoid forcing it. Applying excessive force can bend the tailgate hinges or brackets, leading to significant panel gaps. In such a situation, the immediate step should be to disconnect the fuse for the power tailgate system and then manually close the tailgate. Operating the system with the power connected when it's malfunctioning can exacerbate the problem.

Lexus NX Power Tailgate Replacement Process

In this specific Lexus NX case, the existing aftermarket system's spindle shock motor had internal wiring damage. A temporary fix was attempted by reconnecting the wires, but the problem resurfaced. Consequently, a full replacement with a new shock absorber was deemed the best course of action. Due to the potential safety risks involved in disassembling compressed spindle shocks, replacement is generally safer and more effective than repair.

During the replacement, the older 1st-generation style lower soft-closing mechanism was updated to a fixed striker, similar to the factory setup. The new shock absorber was then installed, along with a completely new wiring harness. The wiring used in this upgrade is of significantly higher quality than the previous aftermarket unit, ensuring smoother and more stable operation. This represents a substantial improvement over the 4-5 year old system.

Furthermore, the latch mechanism was converted to a 'top-lock' system, mirroring the genuine Toyota/Lexus power tailgate design. This 'top-lock' feature provides a satisfying 'click' at the final moment of closing, gently pulling the tailgate shut for a perfect, secure finish.

Results and Value Proposition

Following the complete replacement, the power tailgate on the Lexus NX operated with the smooth, reliable performance expected of a factory-installed option. The previous inconveniences were eliminated, replaced by a significantly enhanced user experience. For owners needing to replace an older, malfunctioning aftermarket system, this upgrade offers a cost-effective solution. The cost for this replacement service in Korea was approximately 30% less than the consumer retail price of a new unit, offering considerable savings.