Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Protective Cap Removal
The Humidity Rain Light Sensor Module (HRLSM) (3) is equipped with a clear, silicone gelatin (SilGel) adhesive membrane (2) that serves as an optical coupler between the sensor and the windshield glass. Extreme care must be exercised to protect this membrane from contamination before it is installed in the vehicle. The HRLSM should always be serviced only in a dust-free environment. Do not touch the membrane with your fingers or tools. The membrane should only come into contact with the clean and dry inside surface of the glass within the mounting bracket bonded to the windshield. The service replacement HRLSM is shipped with a clear plastic protective cap (1) installed and secured to the outer circumference of the HRLSM by two latch features (4). This protective cap should not be removed until immediately before the HRLSM is to be installed using the following procedure.
- Firmly grasp the HRLSM (3) by the outer circumference from the side opposite the SilGel membrane pad.
- Firmly grasp the protective shipping cap (2) of the HRLSM by the two latch release tabs (1) between your thumb and index finger from the SilGel membrane pad side of the module.
- Firmly pinch the two latch release tabs together between your thumb and index finger far enough to release the two latch features of the protective cap from the outer circumference of the HRLSM.
- Pull the protective cap from the HRLSM.
- Install the HRLSM into the mounting bracket bonded to the windshield as instructed in the Installation procedure. Refer to MODULE, HUMIDITY RAIN LIGHT SENSOR, REMOVAL AND INSTALLATION .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.