How to change windshield wipers on 2015 Lexus RX 350?

Front wipers on the 2015 Lexus RX 350 use a 26-inch driver-side blade and an 18-inch passenger-side blade, with an 11-inch rear blade. Replacing them is a straightforward, tool-free task you can do in a few minutes. This guide walks you through front and rear wiper replacement, with model-specific tips and safety considerations.

On the 2015 RX 350, the front wiper blades use a standard connector found on most Toyota/Lexus vehicles, while the rear wiper blade uses a slightly different clip mechanism. Verify blade lengths on the packaging or the vehicle’s owner’s manual before you buy, since sizes can vary by market or trim. Always handle the wiper arms gently to avoid bending them or cracking the windshield.

Blade sizes and compatibility

Before you shop for blades, note the common fitment for this model: 26-inch driver-side front blade, 18-inch passenger-side front blade, and an 11-inch rear blade. Using the correct sizes ensures full coverage and prevents streaking. If you’re unsure, check the sticker on the old blades or consult your owner’s manual for the exact specifications.

What you’ll need

The following items are typically sufficient to replace all three blades on a 2015 RX 350. If you already have OEM or aftermarket blades that match the listed sizes, you’re ready to go.

• Front driver-side wiper blade (26 inches)


• Front passenger-side wiper blade (18 inches)


• Rear wiper blade (11 inches)


• New blade adapters or pins if your replacement blades require them


• Optional: microfiber cloth for glass cleanliness


• Optional: gloves to protect your hands

With the right blades in hand, you’re ready to begin the replacement process. Make sure you’re parked on a level surface and the engine is off before you start.

Front wiper blade replacement

Driver-side blade (26 inches)

Prepare the area and ensure the wiper arm is in a safe, raised position before removing the blade.

1. Lift the driver-side wiper arm away from the windshield until it rests in a stable, upright position.


2. Locate the release mechanism on the blade’s adaptor (usually a small tab or button) and press it while sliding the blade downward off the wiper arm.


3. Remove the old 26-inch blade completely and set it aside.


4. Take the new 26-inch blade out of its packaging and inspect the adaptor for compatibility with your wiper arm.


5. Attach the new blade by aligning it with the wiper arm and sliding it into place until you hear or feel it lock securely.


6. Gently lower the wiper arm back onto the windshield and wipe a small test area to ensure a proper seal and operation.

Conclusion: Confirm the blade is firmly seated and moves freely without catching on the glass.

Passenger-side blade (18 inches)

Repeat the same steps as for the driver-side blade, using the 18-inch blade. The process is the same, just with the different blade length.

1. Lift the passenger-side wiper arm away from the glass and hold it securely.


2. Release the old 18-inch blade from the arm by pressing the adaptor tab and sliding the blade off.


3. Remove the old blade completely and inspect the arm for any debris.


4. Prepare the new 18-inch blade and verify adaptor compatibility.


5. Attach the new blade to the arm until it clicks into place, then return the arm to the windshield.


6. Test the wipers at low speed to ensure full coverage and quiet operation.

Conclusion: The passenger-side blade should be securely attached and aligned with the windshield’s arc for optimal visibility.

Rear wiper blade replacement

Rear blade removal

Rear blade replacement on the RX 350 uses a different connector and often a shorter blade. Follow these steps to avoid damage to the tailgate or glass.

1. Raise the rear wiper arm away from the rear window until it rests in a stable position.


2. Depending on your blade design, either press a release tab or rotate the blade housing to release the old blade from its attachment point.


3. Remove the old 11-inch rear blade and set it aside.

Conclusion: Inspect the rear wiper arm for any residue or corrosion and ensure the new blade will fit the connector type shown on the packaging.

Rear blade installation

Install the new rear blade using the reverse method of removal, ensuring the blade sits securely in its channel or clipping mechanism.

1. Attach the new 11-inch blade to the rear wiper arm, aligning it with the connector and snapping or locking it into place.


2. Lower the wiper arm back to the window and press gently to ensure full seating.


3. Test the rear wiper by turning on the rear wash/wipe function to confirm correct operation and absence of streaks.

Conclusion: The rear blade should move smoothly along the glass with a clean wipe pattern and no loose connections.

Test and final checks

After replacing all blades, perform a quick test to verify proper function and coverage. Wipe across the entire windshield and rear window at low speed, then at higher speeds to ensure consistent contact with the glass. If you notice streaks, recheck the blade seating and alignment.

Summary

For a 2015 Lexus RX 350, front wipers typically use 26-inch and 18-inch blades, with an 11-inch rear blade. Replacement is a quick, tool-free task: lift the arms, release the old blades, attach the new ones until they click, and test the operation. Always confirm blade sizes before purchase and handle the wiper arms gently to protect the windshield. Regularly replacing wipers in pairs helps maintain optimal visibility and performance.