🔧 Sienna - Front Windshield Wiper Blade Replacement

Your Sienna uses a 28-inch driver-side blade and a 20-inch passenger-side blade. Each blade connects to a J-shaped hook at the end of the wiper arm and can be replaced without removing any fasteners.

Difficulty Level: Beginner | Estimated Time: 10-15 minutes

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⚠️ Safety & Precautions

• ⚠️ Turn the ignition and windshield wipers off before lifting the arms.
• 🛡️ Place a thick towel over the windshield because an unprotected metal arm can crack the glass if it snaps down.
• ✋ Replace one blade at a time so the other blade provides a position reference.
• 🔋 Battery disconnection is not required.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses (ANSI Z87.1 rated)
• Protective towel (24 x 48-inch minimum)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front driver-side windshield wiper blade (28-inch) - Qty: 1
• Front passenger-side windshield wiper blade (20-inch) - Qty: 1

Replace in pairs for consistent visibility and wiping performance.

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📋 Before You Begin

• 🚐 Park your Sienna on level ground and switch the ignition completely off.
• 🌤️ Make sure the windshield is cool and dry.
• 🧽 Clean dirt away from the wiper arms and lower windshield.
• 📱 No infotainment menu, scan tool, or wiper service mode is required.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Protect the Windshield

• Put on the ANSI Z87.1-rated safety glasses.
• Lay the 24 x 48-inch protective towel across the windshield beneath the driver-side blade.
• Lift the driver-side wiper arm until it remains raised.
• Do not let the bare arm spring back against the glass.

Step 2: Remove the Driver-Side Blade

• Rotate the blade so it sits nearly perpendicular to the wiper arm.
• Find the small locking tab where the blade adapter meets the J-shaped hook. The adapter is the plastic connector between the blade and arm.
• Press the locking tab with your thumb while sliding the blade downward, toward the base of the arm.
• Move the blade around the open end of the hook and remove it.
• Keep the 24 x 48-inch protective towel under the exposed arm.
• Compare old and new connectors before installation.

Step 3: Install the 28-Inch Driver Blade

• Remove the packaging and protective cover from the 28-inch driver-side blade.
• If the new blade includes several adapters, use the preinstalled J-hook adapter. Do not force an incorrect adapter onto the arm.
• Pass the arm’s hook through the large opening in the blade adapter.
• Slide the blade upward into the hook until the locking tab clicks.
• Pull gently downward on the blade to verify that it is locked.
• No fasteners are used, so there is no torque specification.

Step 4: Lower the Driver-Side Arm

• Hold the arm securely with one hand.
• Use the 24 x 48-inch protective towel to keep the glass protected while slowly lowering the blade onto the windshield.
• Confirm that the rubber wiping edge rests flat and is not twisted.

Step 5: Replace the Passenger-Side Blade

• Move the 24 x 48-inch protective towel beneath the passenger-side blade.
• Lift the passenger-side arm away from the windshield.
• Rotate the blade, press its locking tab, and slide the blade out of the J-shaped hook.
• Insert the 20-inch passenger-side blade into the hook and slide it into place until it clicks.
• Pull gently on the blade to confirm that the adapter is locked.
• Slowly lower the arm onto the windshield.
• No fasteners are used, so there is no torque specification.

Step 6: Check Both Installations

• Use the 24 x 48-inch protective towel to wipe fingerprints from the windshield around both blades.
• Verify that both adapters are fully seated and both rubber edges lie flat.
• Remove the towel before operating the wipers.

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✅ After Repair

• 💧 Apply windshield-washer fluid and operate the wipers at low speed.
• 👀 Check that both blades move smoothly without lifting, chattering, striking each other, or touching the windshield trim.
• 🔍 If a blade shifts or separates from the arm, turn the wipers off immediately and reseat its adapter.
• 🧼 Clean the new rubber edges with a damp cloth if they leave light streaks during the first test.

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💰 DIY vs Shop Cost

Shop Cost: $45-$90 (parts + labor)

DIY Cost: $25-$60 (parts only)

You Save: $20-$30 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.1-0.2 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.