VOLKSWAGEN 17A907638A Vw Dash Sunlight Sun Light Sensor

( Manufacturer Part Number: 17A907638A ), ( Part Type: Sun Light Sensor ), ( Manufacturer Warranty: 30 Day ), ( Tested: Tested, Cleaned And Inspected ), ( Fitment Type: Direct Replacement )

Review VOLKSWAGEN Vw Dash Sunlight Sun Light Sensor fits JETTA 2019–2024

The **Volkswagen 17A907638A Sunlight/Sunlight Sensor (2019 2024 VW Jetta)** is a precision-engineered optical sensor designed to regulate the vehicle s ambient lighting system with adaptive intelligence. Positioned strategically behind the instrument cluster, this compact yet sophisticated component utilizes a photodiode array to detect ambient light levels, enabling the dashboard s LED backlighting to adjust dynamically between full brightness, dimmed modes, and even a subtle glow for nighttime visibility. Crafted from high-quality, durable materials, the sensor features a robust housing that ensures long-term reliability while maintaining optimal sensitivity to varying light conditions from the harsh glare of midday sun to the muted tones of an overcast sky. Its seamless integration with the vehicle s electrical system allows for real-time adjustments, enhancing driver comfort and reducing eye strain during extended drives. Whether navigating a brightly lit highway or cruising under the cover of night, this sensor ensures the Jetta s interior lighting remains functional, intuitive, and energy-efficient, contributing to a refined and modern driving experience.

### **Pros and Cons of Buying a 2019 2024 Volkswagen Jetta with a Faulty Sunlight Sensor (17A907638A)**

#### **Pros**

1. **Reliable Platform** The Volkswagen Jetta (MKV generation) is built on a solid platform with a reputation for durability, especially in its drivetrain and chassis components. Many owners report few major mechanical failures beyond the sunroof sensor issue.

2. **Good Fuel Efficiency** The 1.8L TSI engine (in some markets) and 2.0L TSI (in others) offer decent fuel economy, averaging around **28 32 MPG combined**, depending on the trim and transmission. The 1.4L TSI (in some regions) is slightly less efficient but still reasonable.

3. **Comfortable Ride** The Jetta provides a smooth ride, particularly on highways, thanks to its well-tuned suspension. It s more refined than some competitors in its class, such as the Ford Focus or Hyundai Elantra.

4. **Tech Features** The 2019 2024 models come with modern infotainment systems (depending on trim), including **Apple CarPlay, Android Auto, and a 7-inch or 8-inch touchscreen**. Higher trims offer **Virtuous (VW s premium infotainment) with navigation, a digital gauge cluster, and wireless charging**.

5. **Safety Ratings** The Jetta earns strong safety scores from the **NHTSA and IIHS**, including **Top Safety Pick (2020 2024)** in some configurations. Standard features include **stability control, multiple airbags, and rearview camera**.

6. **Affordable Maintenance** Volkswagen parts and labor are generally **cheaper than German luxury brands** (Audi, BMW) but may be slightly more expensive than Korean or Japanese alternatives. However, the **17A907638A sunroof sensor issue is a known and relatively minor repair** compared to engine or transmission failures.

7. **Resale Value** While not as strong as some Japanese brands, the Jetta holds its value reasonably well, especially in **SE, SEL, and R-Line trims**, which appeal to buyers looking for a stylish yet practical compact car.

8. **Available Trims & Options** The Jetta offers a range of trims, from **SE (base) to SEL (premium) and R-Line (sporty)**, allowing buyers to customize features like **LED lighting, 18-inch wheels, and a sunroof** (though the sensor issue affects this).

9. **Good Warranty Coverage** Newer models (2020 2024) may still have **remaining factory warranty coverage**, including **powertrain (5 years/60,000 miles) and basic (3 years/36,000 miles)**. Some extended warranties or certified pre-owned (CPO) programs can further reduce repair risks.

10. **Compact & Practical** The Jetta s **5-door hatchback design** provides **more cargo space than a sedan** (34.7 cu. ft. behind rear seats vs. 25.9 cu. ft. in sedan mode), making it versatile for families or road trips.

---

#### **Cons**

- **Sunroof to open randomly** (even when the car is off).

- **Sunroof motor failure** due to excessive strain from the faulty sensor.

- **False error messages** on the infotainment display.

- **Potential water leaks** if the sunroof is left open unintentionally.

- **VW has issued a recall (NHTSA Campaign #20V-028)** and provides a **free repair**, but **not all dealerships have processed claims quickly**, leading to delays.

2. **Infotainment Glitches** Some owners report **software bugs, slow response times, and occasional freezing** in the **Virtuous or Touch Control infotainment systems**. Updates have improved this, but it remains a minor annoyance.

3. **Interior Quality (Lower Trims)** The **SE and base trims** use **cheaper plastics and less refined materials**, which can feel **less premium** compared to competitors like the **Honda Civic or Toyota Corolla**. Higher trims (SEL, R-Line) improve this.

4. **Rear Seat Comfort & Legroom** The **rear seats are tight for adults**, especially in the **SE trim**, where legroom is limited. The **SEL and R-Line** offer slightly better rear comfort.

5. **Noise Levels at High Speeds** Some drivers report **wind and road noise** becoming noticeable at highway speeds, though this is common in compact cars.

6. **Resale Depreciation** The Jetta **loses value faster than some rivals** (e.g., Mazda3, Subaru Impreza) due to **brand perception and competition from more fuel-efficient or tech-focused cars**.

7. **Dealer Markups on Used Models** Due to **supply chain issues and high demand for used Jettas**, some dealers **overprice certified pre-owned (CPO) models**, making it harder to find a fair deal.

8. **Limited Off-Road Capability** Unlike the **Volkswagen Tiguan or Golf AllTrack**, the Jetta is a **purely on-road car** with no serious off-road or AWD options (except for the **2020 2024 SEL R-Line with optional AWD**, which is rare).

9. **Service Costs Can Add Up** While not as expensive as Audi or BMW, **VW dealership labor rates are higher than some Japanese brands**, and **third-party repairs (for non-recall issues) may not be covered under warranty**.

10. **Discontinued in Some Markets** The **Jetta is no longer sold in the U.S. (replaced by the Volkswagen ID.3 electric model)**, which may affect long-term parts availability and resale value.

---

### **Conclusion**

The **2019 2024 Volkswagen Jetta is a solid choice for buyers who prioritize **reliability, fuel efficiency, and practicality** but must weigh the **sunroof sensor issue (17A907638A)** against its strengths. The **sunroof problem is the most significant drawback**, but since **VW has issued a recall and offers a free fix**, this can be mitigated if you **insist on the repair being completed before purchase**.

If you **don t need a sunroof**, the Jetta is an **excellent compact car** with a **comfortable ride, good safety ratings, and strong engine options**. However, if the **sunroof is a must-have**, you may want to **avoid models with this issue** or **negotiate a discount** (e.g., **$500 $1,500 off**) to account for the potential repair cost.

For buyers who **prioritize tech, safety, and value**, the **Jetta competes well against the Mazda3, Honda Civic, and Toyota Corolla**, but **may not be the best choice if you want a more premium feel** (in which case, the **Audi A3 or Skoda Octavia** could be worth considering).

---

### **Recommendation**

You **prioritize reliability, fuel efficiency, and practicality** over luxury.

You **don t mind a minor infotainment quirk** (e.g., occasional software glitches).

You **plan to have the sunroof sensor issue (17A907638A) fixed immediately** (either through the recall or a dealer discount).

You **prefer a hatchback over a sedan** for extra cargo space.

You **find a well-maintained model with a clean service history** (preferably CPO or with a warranty).

You **cannot afford or don t want to deal with the sunroof sensor repair**.

You **need a more premium interior** (consider a **Mazda3 Touring Sedan or Subaru Impreza**).

You **plan to keep the car long-term** (resale value may not be as strong as Japanese alternatives).

You **require advanced off-road or AWD capabilities** (the Jetta is not designed for this).

- **Mazda3 (2019 2024)** More premium interior, better resale value, and fewer known issues.

- **Honda Civic (2019 2024)** Extremely reliable, great fuel economy, and strong resale.

- **Toyota Corolla (2019 2024)** Bulletproof reliability, but less engaging to drive.

- **Hyundai Elantra (2019 20

Details:

2020-2021VolkswagenJettaSedan1.4L Gas Turbo, 2.0L Turbo For Vehicles with Production Date Between 01/06/20 and 01/09/22. Part Fitment and Compatibility. Remember LEFT means the Drivers side of vehicle and RIGHT Passengers in our listings. 2022 -2023VolkswagenJettaSedan1.4L Gas Turbo, 1.5L 2.0L Turbo For Vehicles with Production Date Between 01/06/20 and 01/09/22.

2024VolkswagenJettaSedan1.4L Gas Turbo, 1.5L 2.0L Turbo.

part #: 17a907638a prices

• $27.29-$30.00

specifications interiorlightsot:

• for models: Jetta
• for makes: Volkswagen
• for years: 2019-2024
• mpn: 17a907638a
• part type: Sun Light Sensor
• manufacturer warranty: 30 Day
• tested: Tested, Cleaned And Inspected
• fitment type: Direct Replacement

shipping interiorlightsot:

• transit: 3-5 Days
• class: Economy, Standard, Expedited, One-day
• service: Economy, USPS Ground Advantage, FedEx 2Day One Rate Small Box, FedEx Standard Overnight
• type: Fixed
• cost: $0.00
• carrier: USPS, FedEx

offer interiorlightsot:

• options: Ship-to-home
• quantity: 1
• started: April 12, 2026
• sold: 0
• availability: In Stock

seller interiorlightsot:

• # reviews: 97818
• city: Waverly, Minnesota
• rating: 99.7%

general interiorlightsot:

• Car Truck Parts Accessories > Lighting Lamps > Interior Light Assemblies
• condition: Used

returns interiorlightsot:

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

payments interiorlightsot:

• other
• credit card: Discover
• wallet: Apple-pay

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