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Hella 011178901 Rain Sensor
HELLA Rain Sensor for Lane Assist Vehicles
The HELLA Rain Sensor helps automate key vehicle functions by detecting rain, ambient light, solar load, and humidity. It supports smoother windshield wiper response, automatic low beam headlight adjustment, and climate control management for a more consistent driving experience.
Compatible With 2017-2018 Buick Envision and 2017-2018 Cadillac XT5 equipped with lane assist. Part number 011178901 is built for vehicles that use a clipped mounting style and a 3-pole connection with cable.
Key Features
- Detects rain, lighting, solar load, and humidity
- Adjusts wiper speed based on rain intensity
- Supports automatic low beam headlight response to changing light conditions
- Helps regulate climate control based on cabin and environmental conditions
- Clipped mounting type for the specified application
- 3-pole design with cable
- For vehicles with lane assist
Product Details
HELLA 011178901 is a rain sensor assembly for vehicles equipped with lane assist, including the 2017-2018 Buick Envision and 2017-2018 Cadillac XT5. This sensor monitors weather and light-related inputs so the vehicle can react automatically to changing driving conditions. The HELLA brand line is associated with OE-style electronic sensing components used in modern driver-assistance and comfort systems.
This part cross-references Monroe Shocks & Struts (e.g., 84138306, 84524297) for the same application.
What It Helps Address
- Delayed or inconsistent automatic wiper response
- Reduced visibility during changing rain conditions
- Headlights not responding properly to ambient light changes
- Climate control behavior that no longer matches sensor input
- Replacement needs for a failed rain/light sensor on lane-assist vehicles
Installation Notes
Verify the vehicle is equipped with lane assist before ordering. Confirm the clipped mounting style, 3-pole connection, and cable configuration match the original sensor. Use the vehicle identification details and existing connector layout to confirm fitment on your Buick Envision or Cadillac XT5.
Quality Assurance
HELLA manufactures this sensor for modern vehicle control systems with rain, light, solar load, and humidity detection functions. Confirm part number 011178901 against the original unit and vehicle equipment before installation.
| Brand | Hella |
|---|---|
| Part Number | 011178901 |
| Position | Hella |
| Mounting Type | Clipped |
| Number of Poles | 3 |
| Supplementary Article/Info 2 | With cable |
| Vehicle Equipment | For vehicles with lane assist |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2018 | Buick | Envision | N/A | Vehicle Equipment: for vehicles with lane assist; Supplementary Article/Info 2: with cable; Mounting Type: Clipped; Number of Poles: 3; Hella |
| 2018 | Cadillac | XT5 | N/A | Vehicle Equipment: for vehicles with lane assist; Supplementary Article/Info 2: with cable; Mounting Type: Clipped; Number of Poles: 3; Hella |
| 2017 | Buick | Envision | N/A | Vehicle Equipment: for vehicles with lane assist; Supplementary Article/Info 2: with cable; Mounting Type: Clipped; Number of Poles: 3; Hella |
| 2017 | Cadillac | XT5 | N/A | Vehicle Equipment: for vehicles with lane assist; Supplementary Article/Info 2: with cable; Mounting Type: Clipped; Number of Poles: 3; Hella |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.