BUICK 25989795 Front Left Driver Seat Lumbar Switch Control

( Manufacturer Part Number: 25989795 ), ( Part Type: Switch Control Driver Seat ), ( Color: White ), ( Items Included: - ), ( Material: Plastic ), ( Vintage Part: No ), ( Placement On Vehicle: Driver Side, Front, Left ), ( Manufacturer Warranty: 1 Month ), ( Features: Durable ), ( Country Of Origin: United States )

Review BUICK Front Left Driver Side Seat Lumbar Switch Control Oem fits LACROSSE 2017–2019

The **Buick 25989795 Lumbar Support Switch Control** for the **2017 2019 Lacrosse front left driver seat** is a precision-engineered electrical component designed to enhance driver comfort and ergonomic support in one of Buick s most refined mid-size sedans. This high-quality switch is specifically tailored to integrate seamlessly with the lumbar adjustment mechanism of the driver s seat, allowing for effortless, one-handed control of the seat s lumbar support an essential feature for long drives, reducing fatigue, and promoting proper spinal alignment. Crafted with Buick s commitment to durability and performance, this switch is built to withstand frequent use while maintaining a smooth, tactile response, ensuring that adjustments are both intuitive and precise. The design incorporates a robust, corrosion-resistant housing and a reliable internal mechanism, guaranteeing long-term reliability even under demanding conditions. Whether navigating city traffic or cruising on the highway, this lumbar switch control empowers drivers to customize their seating position with minimal effort, contributing to a more comfortable and personalized driving experience. Ideal for both original equipment replacement and aftermarket upgrades, this part adheres to Buick s stringent quality standards, making it a trusted choice for maintaining or enhancing the luxury and functionality of the 2017 2019 Lacrosse s interior.

Buying a **Buick LaCrosse (2017-2019) with a faulty or missing lumbar switch control on the front left driver seat** involves several considerations. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Purchasing This Vehicle**

1. **Reliable Brand Reputation**

Buick has historically been known for durability, especially in its mid-size sedans like the LaCrosse. The 2017 2019 models feature a robust 3.6L V6 engine (LFX platform) that is generally reliable if maintained properly. Many owners report few major issues beyond routine upkeep.

2. **Comfortable and Spacious Interior**

The LaCrosse is well-regarded for its roomy cabin, high-quality materials (especially in higher trims like the Premium or Limited), and comfortable seating. The lumbar support system, when functional, enhances driver comfort on long drives.

3. **Good Resale Value**

Buicks hold their value better than many domestic brands, and the LaCrosse retains a decent resale price compared to competitors like the Chevrolet Impala or Ford Taurus. This can be advantageous if you plan to sell or trade it in later.

4. **Available Tech and Features**

- Apple CarPlay/Android Auto (in later models).

- Heated/ventilated seats (in higher trims).

- Blind-spot monitoring and rear cross-traffic alert (in some trims).

- Uconnect infotainment system (though some users report glitches).

5. **Lower Maintenance Costs Compared to Luxury Brands**

While not a luxury vehicle, the LaCrosse avoids the high repair costs associated with brands like BMW or Mercedes. Parts and labor are generally more affordable than European imports.

6. **Potential for Easy Fix**

The lumbar switch issue may be a simple electrical or wiring problem rather than a major mechanical failure. Some owners report that replacing the switch or repairing the wiring harness resolves the problem for under $100 $200. If the seller is open to negotiation, this could be factored into the purchase price.

7. **Fuel Efficiency**

The 3.6L V6 provides a good balance of power and efficiency, averaging around **18 20 MPG city / 26 28 MPG highway**, which is competitive for its class.

8. **Safety Ratings**

The LaCrosse has earned good safety ratings from the NHTSA and IIHS, with standard stability control, anti-lock brakes, and available advanced safety packages.

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### **Cons of Purchasing This Vehicle**

1. **Lumbar Switch Malfunction as a Dealbreaker**

The lumbar switch controls the adjustable lumbar support in the driver s seat. If it s non-functional, this directly impacts comfort, especially for drivers who rely on lumbar support for long trips or back pain relief. Some buyers may find this a significant inconvenience, depending on their needs.

- **Possible Causes:** The issue could stem from a faulty switch, damaged wiring, or a malfunctioning seat actuator. Without a pre-purchase inspection, it s hard to determine the root cause or repair cost.

- **Workaround:** Some drivers manually adjust the lumbar support by pressing the switch repeatedly or using a screwdriver (not recommended long-term). However, this is not a permanent solution.

2. **Potential for Other Electrical Gremlins**

- **Uconnect system freezes or glitches** (common in older models).

- **Power window or door lock malfunctions** (often due to corroded connectors).

- **Infotainment lag or touchscreen unresponsiveness**.

If the lumbar switch is electrical, there s a chance other systems may have similar problems.

3. **Transmission Concerns (Automatic Models)**

- Rough shifting or delayed engagement.

- Transmission fluid leaks (requiring a flush and refill, costing $500 $800).

- Check Engine Lights (CEL) for transmission-related codes.

A pre-purchase inspection is critical to verify transmission health.

4. **Rust and Corrosion Risks**

Buicks built in the late 2010s can develop rust in the wheel wells, rocker panels, and undercarriage, especially in snowy or salted regions. Inspect the vehicle thoroughly for signs of rust or body damage.

5. **Infotainment System Limitations**

The Uconnect system in these models can be slow and prone to freezing. While later models (2018 ) have improvements, the 2017 model may lack the latest software updates. Some users have reported needing to reset the system frequently.

6. **Resale Value Depreciation**

While Buicks hold value better than some competitors, the LaCrosse s resale value declines steadily. If you plan to keep the car for more than 5 6 years, factor in depreciation when calculating long-term ownership costs.

7. **Potential for Hidden Mechanical Issues**

- **Suspension wear** (worn shocks or struts affecting ride quality).

- **Brake system issues** (worn pads, rotors, or calipers).

- **Coolant leaks** (from the water pump or hoses, which can lead to overheating).

- **Exhaust leaks** (common in V6 engines, causing noise and potential emissions issues).

8. **Limited Availability of Parts**

While not as severe as with older models, some parts for the 2017 2019 LaCrosse may take longer to arrive than for newer vehicles. This could delay repairs if issues arise.

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### **Conclusion**

- **Prioritize reliability and comfort** over cutting-edge tech.

- **Are willing to negotiate the price** to account for the lumbar switch issue (or have it fixed before taking ownership).

- **Get a pre-purchase inspection (PPI)** to uncover and address other potential problems (transmission, electrical, rust, etc.).

- **Plan to use the car for moderate driving** (e.g., daily commuting, occasional road trips) rather than high-mileage or performance-focused use.

However, if the lumbar switch is a **dealbreaker for you** (e.g., you have back pain and rely on lumbar support), the vehicle may not be worth the hassle unless the seller offers a significant discount or agrees to fix it before sale. Additionally, if the PPI reveals other major issues (e.g., transmission problems, severe rust, or electrical gremlins), it may not be a worthwhile purchase.

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### **Recommendation**

1. **Get a Pre-Purchase Inspection (PPI)**

- **Transmission health** (fluid condition, shifting smoothness).

- **Electrical system** (test the lumbar switch, Uconnect, windows, locks).

- **Suspension and steering** (check for worn components).

- **Brakes and exhaust** (listen for leaks or unusual noises).

- **Underbody for rust** (especially in snowy regions).

A PPI typically costs **$100 $200** but can save you thousands in unexpected repairs.

2. **Negotiate the Price**

If the PPI reveals the lumbar switch is the only issue, use it as leverage to lower the price by **$300 $800**, depending on the severity and your local market. If other problems are found, walk away unless the seller reduces the price significantly.

3. **Consider Alternative Options**

- If the lumbar switch is a priority, look for a **2018 LaCrosse with a known working switch** or a **2020 model** (which may have improved tech and fewer electrical quirks).

- If you re open to other brands, the **Chevy Impala, Ford Taurus, or Hyundai Azera** offer similar features with different reliability profiles.

4. **Budget for Repairs**

- **Lumbar switch replacement**: $100 $300 (parts labor).

- **Transmission fluid flush**: $500 $800 if needed.

- **Rust repairs**: Varies widely ($200 $2,000 depending on extent).

- **Electrical fixes**: Could range from $50 (simple wiring) to $500 for complex issues.

5. **Test Drive Thoroughly**

- **Manually adjust the lumbar support** to confirm it s not just stuck in one position.

- **Check all electrical features** (windows, locks, Uconnect, climate control).

- **Listen for unusual noises** (whining from the transmission, rattles, or exhaust leaks).

6. **Buy from a Reputable Seller**

Prefer **certified pre-owned (CPO) dealers** or **private sellers with full service records**. Avoid "as-is" sales from

Details:

Minor signs of use may be present but do not affect functionality. Shipping Information: Fast and Secure Shipping: Orders are processed quickly carefully packaged. Guaranteed Fit: Verified compatibility with various vehicle model's. Lift gate services are not included.

Warranty: This part comes with a 30-day warranty against defects. Secure Packaging: Properly packed to prevent damage during transit.

part #: 25989795 prices

• $27.50-$35.09

specifications seainterio:

• for models: Lacrosse
• for makes: Buick
• for years: 2017-2019
• mpn: 25989795
• part type: Switch Control Driver Seat
• color: White
• items included: -
• material: Plastic
• vintage part: No
• placement on vehicle: Driver Side, Front, Left
• manufacturer warranty: 1 Month
• features: Durable
• country of origin: United States

offer seainterio:

• availability: In Stock
• started: May 11, 2026
• best offers: True
• sold: 0
• options: Ship-to-home
• quantity: 1

payments seainterio:

• wallet: Paypal
• credit card: Diners-club
• other

general seainterio:

• Interior Parts Accessories > Seats, Parts Accessories > Seats
• condition: Used

returns seainterio:

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

shipping seainterio:

• type: Fixed
• transit: 4-9 Days
• cost: $0.00
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard

seller seainterio:

• # reviews: 1212
• rating: 99.7%
• city: Pinellas Park, Florida

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