1
Service position (if needed)
The rear wiper on the 2010-2015 Lexus RX needs no service position — the short rear arm lifts off the back glass by hand.
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2010–2015 Lexus RX
2010-2015 Lexus RX — Rear Wiper Blade Replacement
By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
🔧 Easy
15 minutes
$15 DIY
1 views
Save $35 by doing it yourself! Shop cost: $50
Quick answer: Rear Wiper Blade Replacement on a 2010–2015 Lexus RX is rated Easy and takes about 15 minutes. You'll need 1 tool for this job, and parts cost about $15. This guide walks you through the full job step by step, including the mistakes to avoid.
Quick Video Tutorial
Parts You Need
Total Cost
$15.00
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| 16-inch Rear Wiper Blade (OEM 85242-48040 — confirm fitment for your 2010-2015 Lexus RX before ordering) | 85242-48040 | $15.00 |
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Step-by-Step Instructions
Follow these steps carefully
2
Lift the wiper arm
A folded towel laid on the glass under the arm adds cheap insurance.
3
Release the old blade
The RX rear blade uses a rocker/snap-claw style arm end: find the small release tab or the claw clips where the 16-inch blade meets the arm, press or spread them, and slide the blade off. Work gently — the plastic arm end can crack if forced.
🔧 Mechanic's note — Tom Becker
I find the release tab on the snap-claw before pulling — I've forced an RX rear blade off the wrong way before, and the little claw tab snapped.
4
Match the new blade
The 2010-2015 Lexus RX takes a 16-inch rear wiper blade (2007-2009 RX models use a 14-inch rear blade, so confirm your model year). Buy a rear-specific blade or refill made for the RX's rocker-style arm — a standard front blade with the wrong connector will not fit. Hold the new blade against the old one to confirm the length. For reference, the front blades on this RX are 26-inch driver and 22-inch passenger, but this guide covers the rear blade only.
5
Install until it clicks
Slide or snap the new 16-inch blade onto the rear arm until the claw or tab clicks into place, then tug gently to confirm it is locked.
6
Lower and repeat
Gently lower the rear arm onto the back glass. There is no second rear blade to repeat with — instead, run the rear washer and wiper to verify a clean, streak-free sweep across the back glass.
🔧 Mechanic's note — Ray Delgado
I run the rear washer and wiper to verify the sweep — a streaky arc usually means the blade isn't snapped in fully, and I've reseated more than one.
All Done!
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
- • Forgetting to lift the wiper arm before removing the blade
- • Installing the new blade without ensuring it's securely attached
- • Using the wrong size blade for the vehicle model
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