Does the 2010 Lexus RX 350 have electric power steering?

No. The 2010 Lexus RX 350 uses hydraulic power steering (HPS) rather than electric power steering (EPS). The system relies on a belt-driven pump that circulates hydraulic fluid to assist the steering rack, not an electric motor. This article explains how that works, how to tell the difference, and what to watch for in maintenance.

System type and driving feel

The RX 350’s steering relies on a traditional hydraulic setup. A pump driven by the engine pressurizes power-steering fluid, which then assists the rack-and-pinion steering to reduce effort at the wheel. In this configuration, steering feel can be influenced by fluid condition, pump health, and temperature, and the overall experience tends to be a familiar, non-electric assist rather than the electronically controlled feedback some newer vehicles use.

Core elements that make up the hydraulic power steering (HPS) system in the RX 350 include:

• Power-steering pump driven by the engine


• Reservoir filled with power-steering fluid


• High-pressure hoses routing fluid to the steering rack


• Rack-and-pinion gear that translates the hydraulic assist into steering movement

The result is light steering at low speeds for parking and maneuvering, with gradually firmer, more regulated feel at highway speeds. Regular fluid checks help maintain consistent performance and prevent noise from a worn pump or leaks.

How to confirm the power steering type in your RX 350

For a 2010 RX 350, you should expect to see an engine-bay reservoir and a belt-driven pump, which indicates hydraulic power steering. If you’re evaluating a used vehicle, these signs help confirm the system type and inform maintenance expectations.

• Look for a power-steering fluid reservoir and hoses connected to a pump driven by the engine—these indicate HPS


• Absence of a steering-fluid reservoir with a visible electric motor near the steering rack/column typically points to EPS


• Review service records for power-steering fluid changes or pump-related repairs, which are common indicators of hydraulic PS


• Ask the seller or consult the vehicle’s manual to verify the original equipment specifications for that model year

In practice, the 2010 RX 350 relies on a hydraulic system. If you’re comparing across model years, note that later Lexus crossovers and sedans began using EPS, but the 2010 RX 350 itself does not rely on an electric motor for steering assist.

Maintenance considerations and common issues

Maintenance tips for hydraulic power steering

Before listing common issues, here are key maintenance steps to keep hydraulic PS running smoothly:

• Regularly check the power-steering fluid level and top up with the correct fluid if needed


• Inspect for leaks around the pump, hoses, and rack; address any seepage promptly


• Listen for a whining or groaning pump sound when turning the wheel, which can indicate low fluid or worn components


• Inspect the drive belt that powers the PS pump and replace or tension as recommended by the manufacturer

Addressing fluid leaks, maintaining proper fluid level, and keeping the pump and belt in good condition helps prevent steering stiffness, noise, and reduced assist.

Takeaways for buyers and owners

For the 2010 RX 350, expect hydraulic power steering rather than electric. This affects maintenance needs, such as fluid checks and leak monitoring, but it typically offers reliable, straightforward steering assist without the electric-component complexities of EPS systems.

Summary

The 2010 Lexus RX 350 does not have electric power steering; it uses a conventional hydraulic power-steering system driven by the engine. Understanding this helps with maintenance planning, diagnosing issues (like fluid leaks or pump noise), and evaluating the vehicle when shopping used examples. As Lexus evolved its lineup in later years, EPS became more common, but the 2010 RX 350 remains a hydraulic-PS model.

Is 2010 a good year for Lexus RX 350?

The 2010 Lexus RX 350 is a good year for reliability, with high consumer ratings, but it is important to be aware of potential issues like oil leaks, transmission problems, and airbag warning lights. While many owners have found the vehicle dependable, potential problems can be costly to fix, so a pre-purchase inspection is recommended.
 
Pros

• High reliability: Despite potential issues, the 2010 model is generally considered reliable and dependable, even with high mileage. 
• Comfortable and luxurious: The vehicle offers a quiet, comfortable ride with a plush interior, comfortable seats, and useful features. 
• Strong driving experience: It has solid handling, excellent steering, and a smooth ride, though it's not a sport-focused vehicle. 
• Good consumer ratings: The 2010 model received high scores for quality and reliability from sources like J.D. Power and Edmunds. 

This video reviews the 2010 Lexus RX 350 and discusses its reliability and performance: 55sDriven CompanionYouTube · Sep 19, 2019
Cons and potential problems

• Oil leaks: A common issue is a massive oil leak from the VVTi oil line, which can lead to engine failure if not addressed. 
• Air conditioning and electrical issues: Some owners have reported failed AC amplifiers and electrical problems, such as battery drain and alternator wiring faults. 
• Airbag warning light: The airbag warning light can come on due to a fault code like B0111 or B0116. 
• Transmission problems: Delayed shifting and hesitation can indicate transmission issues, especially if air gets into the system. 
• Suspension: While overall suspension is decent, some owners have noted rattling noises, and the suspension is known to fail easily on rough roads. 
• Costly repairs: Some problems, like a timing cover leak, require engine removal for repair and can be very expensive to fix, potentially exceeding the car's value. 

Recommendation

• If you are considering a 2010 Lexus RX 350, it is essential to get a thorough pre-purchase inspection by a qualified mechanic. 
• Pay close attention to the results of the inspection, especially for oil leaks, the condition of the transmission, and any warning lights. 
• Be prepared for potential repair costs, as some issues can be expensive. 

Where is the power steering fluid in a 2010 Lexus RX 350?

Set. Well it's probably a little low. It is indeed empty okay so almost all Japanese cars as I found out my mom's Ford Taurus that she had use ATF normally Dexron or Mirkon. For power steering foot.

Does the Lexus RX350 have power steering fluid?

The best part is, our Lexus RX350 Power Steering Fluids start from as little as $6.99. When it comes to your Lexus RX350, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Power Steering Fluids brands so you can shop with complete confidence.

Which year to avoid Lexus RX 350?

Years to potentially avoid the Lexus RX 350 include 2007, 2008, 2010, 2016, and 2017, as these models have been associated with more complaints regarding issues like oil leaks, engine problems, transmission failures, and dashboard cracking. These are often the first year of a redesign, or specific model years that experienced known issues.
 
Model years to avoid

• 2007 and 2008: These years may have issues with oil leaks and cracking dashboards. 
• 2010: Known for engine problems and rattling doors. Some models also have oil cooler hose issues that can be replaced with metal lines. 
• 2016 and 2017: These were the first years of the fourth generation and are often cited as problematic. 
  • The 2016 model saw issues with the new 8-speed transmission. 
  • The 2017 model had problems with faulty rain sensors. 

Why these years have issues

• First year of a redesign: New generations often have "bugs" that are worked out in subsequent model years. This is particularly true for the 2016 model year, which was the first in its generation. 
• Known common problems: Specific model years have common problems associated with them, such as the oil leaks in the 2007-2008 models and transmission issues in the 2016 model. 

If you must buy one of these years

• If you choose one of the problematic years, it is especially important to get a pre-purchase inspection from a trusted mechanic. 
• The 2010 model can be made more reliable by replacing the rubber oil cooler hoses with metal ones.