Lexus NX300 Windshield Wipers Aren't Working

Common Causes of Non-Functional Windshield Wipers in Your Lexus NX300 and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
75% chance it's the
Wiper Motor
0%
25% chance it's the
Switch
The most common reasons a Lexus NX300 windshield wipers aren't working are broken wiper motor and issues with the switch.
  • Wiper Motor: A faulty wiper motor or a bad electrical connection can result in intermittent or non-functioning windshield wipers.
  • Switch: A faulty switch can result in intermittent or complete failure of the electrical component it controls, leading to malfunctioning systems.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a Lexus NX300 windshield wipers aren't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Inability to control the windshield wipers comes in several forms, and they are all indicative of windshield wiper switch failure. The windshield wipers may not work in all settings, may not turn on when requested, may not move to their parked position when turning off, or the washer pumps may or may not run at random. This is a general list of symptoms, but failure of anything the windshield wiper switch controls will indicate the need for testing the windshield wiper and washer switch.

A failed windshield wiper motor will do one of two things in the event of failure. First, it can intermittently work, meaning when the wiper switch is turned on, the windshield wipers may activate, and run for a random amount of time. This may happen at random, or change with a bump. Lastly, the windshield wipers could show no signs of activity, indicating motor failure.

The moment water touches the windshield, you know if you need new windshield wiper blades. If your wiper blades are torn, cracked, hard, or brittle, it is time for replacement. Wipers should also be replaced if the wiper blades only smear water around, seem to make a mess, streak the windshield, and miss large patches. If you are unhappy with the current wiper blades on your vehicle, this is a very economical change to make.

Windshield wiper arms will be replaced mainly for aesthetic reasons or damage. If the windshield arms become bent or rusted, the windshield wipers may not contact the windshield at the proper angle, or there may be no contact at all. Also, the sun will take a toll on these parts after years of use, and fading or clear coat peeling will result, not to mention rust.

Troubleshooting Non-Functional Windshield Wipers in a Lexus NX300

When troubleshooting non-functional windshield wipers in a Lexus NX300, it's essential to adopt a systematic diagnostic approach. Start by checking for simple issues, such as ensuring the wiper switch is in the ON position and that the vehicle's power is active. If the wipers remain unresponsive, manually attempt to move them while the car is off; if they don't budge, this may indicate an electrical problem. Next, inspect the windshield washer nozzles for clogs, as debris can easily obstruct their function. If the wipers are moving erratically or not parking correctly, consider adjusting their position, which can often resolve alignment issues. If all else fails, the wiper motor may need to be examined, as a malfunction here could prevent the wipers from operating entirely. By following this methodical approach, you can effectively diagnose and potentially resolve the issues with your Lexus NX300's windshield wipers.

What to Check When Windshield Wipers Aren't Working on a Lexus NX300?

When your Lexus NX300's windshield wipers fail to operate, it's essential to systematically identify the underlying issues. Start by inspecting the wiper blades for any signs of wear or damage, as deteriorated blades can significantly hinder performance. Next, examine the wiper motor; if it’s malfunctioning, it may require repair or replacement to restore functionality. Additionally, check the fuse associated with the wiper system, as a blown fuse can easily disrupt operation. If the wipers are not parking correctly or are moving erratically, this could indicate an adjustment issue, which is typically a straightforward fix. Lastly, to determine whether the problem is electrical or mechanical, attempt to manually move the wipers while the vehicle is off; if they remain stationary, the issue is likely electrical. By methodically assessing these components, you can effectively diagnose and address the wiper malfunction, ensuring safer driving conditions.

Why Are the Windshield Wipers Not Working on a Lexus NX300?

When your Lexus NX300's windshield wipers fail to operate, it is crucial to address the issue without delay. Ignoring symptoms such as inactivity or unusual noises can compromise your visibility during inclement weather, significantly increasing the risk of accidents. Common culprits include a blown fuse, a malfunctioning wiper motor, or even broken controls, all of which can lead to complete wiper failure. Additionally, extreme weather conditions can exacerbate these problems, causing components to freeze or become loose. If you hear the motor running but the wipers remain stationary, a disconnected link arm may be the culprit, which is often a straightforward fix. Ripped wiper blades can also hinder performance, making it essential to inspect and replace them regularly. By promptly diagnosing and addressing these issues, you not only ensure your safety on the road but also prevent potential damage to your vehicle's electrical system and wiper components.

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