INFINITI FX-35-FX-37-FX-50-QX-70 Trunk Lid Lock Latch Motor Actuator

( Manufacturer Part Number: FX-35-FX-37-FX-50-QX-70 ), ( Model: FX35FX37FX50QX70 FX 35 FX 37 FX 50 QX 70 FX-35-FX-37-FX-50-QX-70 ), ( Type: Trunk Lock Actuator ), ( Part Placement: Rear ), ( Manufacturer Warranty: 30 Day Warranty )

Review INFINITI Fx37 Trunk Lid Lock Latch Actuator Motor Oem fits FX35 FX50 QX70 2009–2017

The **Infiniti FX35, FX37, FX50, and QX70 trunk lid lock latch actuator motor** (covering models from **2009 to 2017**) is a precision-engineered component critical to the seamless operation of the vehicle s rear cargo area. Designed to integrate flawlessly with Infiniti s luxury-oriented engineering, this actuator motor is responsible for the automatic engagement and release of the trunk latch mechanism, ensuring smooth, reliable, and effortless trunk lid functionality. Crafted from high-quality materials, including durable metal alloys and corrosion-resistant coatings, this component is built to withstand the demands of daily use while maintaining optimal performance under varying environmental conditions. The actuator operates via an electric motor, controlled by the vehicle s central locking system, allowing for hands-free trunk access a hallmark of Infiniti s commitment to convenience and sophistication.

For the **FX35 and FX37** (2009 2017), the trunk lid latch actuator motor is engineered to complement the sporty yet refined design of these coupe and convertible models, ensuring seamless integration with the vehicle s aerodynamic contours. Similarly, the **FX50** (2012 2017), with its distinctive rear hatchback styling, features a robust actuator motor that aligns with its practical yet luxurious positioning, offering both functionality and a premium feel. Meanwhile, the **QX70** (2009 2017), a larger SUV with a more utilitarian trunk space, incorporates a slightly reinforced actuator motor to accommodate the increased load capacity and structural demands of its cargo area. Each model s actuator motor is meticulously calibrated to work in harmony with the vehicle s electronic control modules, ensuring precise timing and smooth operation whether in cold weather, high humidity, or under heavy loads.

Beyond its primary function, this component plays a role in enhancing the overall driving experience by contributing to the vehicle s refined ergonomics. The actuator motor s quiet operation and minimal wear over time reflect Infiniti s engineering standards, reducing the likelihood of rattles, misalignments, or premature failure. When servicing or replacing this part, it is essential to use **OEM-compatible or high-quality aftermarket replacements** that meet Infiniti s exact specifications to maintain the vehicle s performance and resale value. Whether addressing a malfunctioning trunk latch, upgrading for improved durability, or ensuring compatibility with aftermarket modifications, this actuator motor remains a vital yet often overlooked element of Infiniti s luxury lineup, embodying reliability, precision, and the brand s dedication to driver-centric design.

### **Pros and Cons of Buying a Used 2009 2017 Infiniti FX35/FX37/FX50/QX70 with a Trunk Lid Lock Latch Actuator Motor Issue**

#### **Overview of the Vehicles**

The **Infiniti FX35 (2009 2017)**, **FX37 (2012 2017)**, **FX50 (2013 2017)**, and **QX70 (2009 2017)** are luxury crossover SUVs known for their refined interiors, V6 engines, and smooth ride quality. However, like many vehicles from this era, they are prone to certain reliability issues, particularly with the **trunk lid lock latch actuator motor**, which can fail and cause the rear hatch to remain open or not close properly.

---

### **Pros of Buying a Used FX35/FX37/FX50/QX70**

1. **Luxury and Comfort**

- Spacious, well-appointed interiors with high-quality materials (especially in higher trims).

- Quiet cabin, comfortable seating, and smooth ride (thanks to Infiniti s suspension tuning).

- Available **all-wheel drive (AWD)** in most models, improving off-road and winter traction.

2. **Powerful and Reliable Engines**

- The **3.7L V6 (FX35/FX37)** and **5.0L V8 (FX50)** are well-regarded for their smooth operation and durability when maintained properly.

- The **3.7L V6** (in FX35/FX37) is particularly efficient and capable of handling daily driving without major issues if serviced regularly.

- The **QX70** shares the same powertrains as the FX models, offering similar performance.

3. **Good Resale Value (Compared to Competitors)**

- Infiniti s luxury crossovers held their value reasonably well during their production years, especially compared to some Japanese rivals.

- The **FX50** (with its V8) remains a desirable model, though parts and maintenance can be more expensive.

4. **Available Tech and Features**

- **2012 models** introduced **Infotainment Touchscreen (FX37/FX50/QX70)**, Bluetooth, and USB connectivity.

- **Heated/ventilated seats** (higher trims), **adaptive cruise control**, and **parking sensors** (later models).

- **Comfortable ride height** (higher than a sedan but lower than a full-size SUV), making it practical for city and highway driving.

5. **Potential for Customization**

- The FX series was designed for performance and luxury, allowing for aftermarket upgrades (suspension, exhaust, wheels).

- The **FX50** (with its V8) can be tuned for better power if desired.

6. **Lower Purchase Price (Used Market)**

- Compared to newer luxury crossovers (e.g., Lexus RX, BMW X5, Audi Q7), these models are significantly cheaper, making them an attractive entry point into luxury ownership.

---

### **Cons of Buying a Used FX35/FX37/FX50/QX70 (Especially with Trunk Actuator Issues)**

1. **Common Trunk Lid Lock Latch Actuator Motor Failure**

- **Symptoms:** Rear hatch may not close properly, stay open, or require manual intervention. Some owners report the actuator motor burning out, leading to a stuck or non-functional trunk.

- **Repair Cost:** Replacing the actuator motor typically costs **$200 $500** (parts labor), depending on the dealer or shop. Some owners have reported multiple failures, suggesting a design flaw.

- **Workaround:** Some mechanics can bypass the faulty actuator, but this is not a permanent fix and may void warranties.

2. **Transmission Issues (Especially in FX35/FX37 with CVT)**

- The **continuously variable transmission (CVT)** in the **FX35/FX37** is known for **jerking, hesitation, and premature wear**.

- **Symptoms:** Rough shifting, delayed acceleration, or transmission slipping.

- **Repair Cost:** A CVT rebuild or replacement can cost **$3,000 $6,000**, making it one of the most expensive repairs.

- **Avoid if possible:** If buying an FX35/FX37, **check transmission history** and consider a **manual transmission model** (if available) or a **premium automatic** (though rare in this lineup).

3. **Electrical and Infotainment Problems**

- **2009 2011 models** have **basic infotainment systems** with limited connectivity (no Bluetooth, small screens).

- **2012 models** with touchscreens can suffer from **software glitches, touch sensitivity issues, or complete system failures**.

- **Electrical gremlins** (e.g., power window malfunctions, sensor failures) are more common than in newer luxury vehicles.

4. **Rust and Corrosion (Especially in Snowy Regions)**

- The **FX35/FX37/FX50** have **plastic body panels** (e.g., rocker panels, front fenders) that are prone to **stone chips and rust**.

- **QX70** has a more traditional metal body but still requires **underbody corrosion protection** if driven in salted roads.

- **Inspect for rust** before purchasing, especially in the **wheel wells, frame rails, and undercarriage**.

5. **High Maintenance Costs Over Time**

- **Infiniti dealerships** charge premium labor rates, often **$120 $150/hour**, making repairs expensive.

- **Oil changes** should be done **every 5,000 7,500 miles** (Infiniti s recommended interval) to prevent engine sludge (common in V6/V8 models).

- **Timing belt replacement** (if applicable) is critical **failure can cause catastrophic engine damage**.

6. **Recall and Safety Concerns**

- Some **2009 2012 FX models** had **recalls for airbag issues, fuel pump failures, and brake problems**.

- **Check the NHTSA website** for open recalls before buying.

- **Rear visibility** can be poor due to the **high roofline**, making blind spots an issue.

7. **Resale Depreciation**

- While these models held value reasonably well, they **depreciate faster than newer luxury SUVs**.

- If you plan to sell later, you may not recover as much as you paid.

8. **Limited Availability of Parts and Specialists**

- Some **aftermarket parts** (e.g., suspension, exhaust) may be harder to find than for more common luxury brands.

- **Independent mechanics may not be familiar** with Infiniti-specific issues, increasing repair uncertainty.

---

### **How to Mitigate the Trunk Actuator Issue**

1. **Get a Pre-Purchase Inspection (PPI)** A mechanic should test the trunk mechanism and check for **electrical gremlins**.

2. **Ask for Maintenance Records** Ensure the **trunk actuator has been replaced** if it s been an issue before.

3. **Consider a Bypass Solution** Some owners modify the wiring to **disable the actuator** and manually close the trunk (not ideal but functional).

4. **Budget for the Repair** If buying, **set aside $300 $500** for the actuator replacement.

5. **Check for Alternatives** Some **aftermarket actuators** exist, but compatibility varies.

---

### **Recommendation: Should You Buy?**

You **prioritize luxury and comfort** over cutting-edge tech.

You **find a well-maintained example** with **clean service records** (especially oil changes and transmission care).

You **accept some electrical quirks** in exchange for a spacious, smooth-riding SUV.

You **plan to keep it for 3 5 years** and can afford **potential repairs** (CVT, actuator, rust).

You **prefer the FX50 (V8)** over a CVT-equipped FX35/FX37 (though V8 models have higher maintenance costs).

You **live in a mild climate** (less rust risk) and **drive mostly on paved roads**.

You **need a reliable, low-maintenance vehicle** (consider a **Lexus RX, Toyota Highlander, or Honda Pilot** instead).

You **can t afford unexpected repairs** (CVT rebuilds, rust fixes, electrical issues).

You **hate dealing with electrical gremlins** (trunk actuator, infotainment, sensors).

You **live in a snowy/salty region** (higher rust risk).

You **want a vehicle that holds value well** (these depreciate faster than newer luxury SUVs).

- **Lexus RX

Details:

Item is sold as shown. Genuine OEM auto part removed from a vehicle. Important: Match part number before purchase. Please review all images carefully for condition and details.

Minor cosmetic wear such as light scratches or scuffs may be present.

part #: fx35fx37fx50qx70 prices

• $70.00-$256.47

specifications carlockiio:

• for models: Fx35, Fx50, Qx70
• for makes: Infiniti
• for years: 2009-2017
• mpn: Fx-35-fx-37-fx-50-qx-70
• model: Fx35fx37fx50qx70 Fx 35 Fx 37 Fx 50 Qx 70 Fx-35-fx-37-fx-50-qx-70
• type: Trunk Lock Actuator
• part placement: Rear
• manufacturer warranty: 30 Day Warranty

offer carlockiio:

• quantity: 1
• sold: 0
• started: May 8, 2026
• availability: In Stock
• options: Ship-to-home

payments carlockiio:

• other
• wallet: Paypal
• credit card: Mastercard

seller carlockiio:

• rating: 99.3%
• # reviews: 1650
• city: Spring

shipping carlockiio:

• service: USPS Priority Mail
• carrier: USPS
• cost: $17.85
• transit: 4-10 Days
• type: Fixed
• class: Expedited

general carlockiio:

• condition: Used
• Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware

returns carlockiio:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

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