2020 Lexus RX 350 Common Issues & Recommended Maintenance

2020 Lexus RX 350: Overview

The 2020 Lexus RX 350 sits at the crossroads of luxury, comfort, and reliability in the midsize SUV segment. Renowned for its refined ride, elegant interior, and advanced safety features, it appeals to discerning drivers who prioritize both style and dependable everyday performance. However, like any vehicle, staying proactive with routine maintenance and being informed about potential issues is essential for safeguarding your investment and ensuring peace of mind on the road.

Common Problems and Reported Issues

While the 2020 Lexus RX 350 is widely regarded as a dependable luxury SUV, some owners have encountered specific issues. Understanding these reported problems can help you approach ownership with greater confidence and address concerns promptly when they arise.

Safety Systems

  • Airbag Deployment Issues: Certain 2020-2022 Lexus RX 350 models were subject to a recall due to faulty front passenger seat sensors. These sensors could short circuit and fail to detect occupant weight, increasing the risk of airbag non-deployment in a crash. This is a serious safety concern, though not every vehicle is affected.

Climate Control

  • Air Conditioning Malfunctions: Many owners have reported that the air conditioning system sometimes blows warm air or functions intermittently, frequently linked to a failed AC amplifier. Resolving this issue often requires component replacement (details here).

Powertrain & Drivability

  • Transmission Hesitation and Shuddering: A notable number of drivers have experienced hesitation, shuddering during acceleration, or rough and delayed gear changes, as discussed by Lemberg Law. Though not endemic, these concerns can impact driving quality and may necessitate software updates or, in rare cases, transmission repair.

Electrical and Infotainment Systems

  • Electrical System Failures: Issues include malfunctioning infotainment touchscreens, unresponsive climate controls, and the Lexus Enform Remote system becoming nonfunctional. These glitches, although not always severe, detract from the tech-driven experience expected in a premium SUV (see more).

Fuel & Brake Systems

Steering & Suspension

  • Suspension and Steering Problems: Some owners have encountered worn shocks, struts, or power steering rack issues, leading to abnormal noises, diminished ride comfort, or leaks from the steering system (see details). These can be moderately costly to fix.

Interior & Comfort

  • Interior Rattling Noises: There are multiple reports of rattles coming from doors or the dashboard, especially in colder conditions. While this does not affect safety or drivability, it can compromise the luxury feel Lexus is known for (thedriveradviser.com comments further).

In summary: While not every 2020 RX 350 will encounter these problems, awareness and proactive maintenance are key to a reliable ownership experience.


Maintaining your 2020 Lexus RX 350 based on the manufacturer’s schedule is critical for longevity and minimizing unexpected expenses. Below is a maintenance summary organized by mileage and time intervals, with kilometers provided in brackets for convenience.

Mileage Interval (Miles / Km) Maintenance Tasks
Every 5,000 mi (8,000 km) – Rotate tires
– Inspect and adjust fluid levels
– Inspect wiper blades
– Inspect brake pads, calipers, rotors
– Check driver’s floor mat
– Road test
– Reset maintenance reminder
Every 10,000 mi (16,000 km) – Replace engine oil and filter
– Replace cabin air filter
– Rotate tires
– Inspect wiper blades, brake pads, calipers, rotors
– Check driver’s floor mat
– Road test
– Reset oil and maintenance reminders
Every 15,000 mi (24,000 km) – Inspect axle shaft boots, steering linkage, boots, ball joints, dust covers, exhaust pipes, mountings, chassis, rack-and-pinion assembly, brake lines, engine coolant
– Replace Smart Key battery
– Rotate tires
– Inspect wiper blades
– Inspect brake pads/calipers/rotors
– Check floor mat
– Road test
– Reset reminders
Every 30,000 mi (48,000 km) – Inspect automatic transmission for leaks
– Inspect brake rotor thickness and runout
– Inspect fuel lines, tank, vapor system
– Replace brake fluid, engine/cabin air filters, oil and filter
– Rotate tires
– Inspect wiper blades, brake components
– Check floor mat
– Road test
– Reset reminders
Every 60,000 mi (96,000 km) – Replace spark plugs
– Inspect drive belts (then every 15,000 mi / 24,000 km)
– Replace engine oil/filter
– Rotate tires
– Inspect wiper blades, brake components
– Check floor mat
– Road test
– Reset reminders
Every 90,000 mi (144,000 km) – Inspect automatic transmission fluid cooler hoses/connections and for leakage
– Replace engine oil and filter
– Rotate tires
– Inspect wiper blades, brake components
– Check floor mat
– Road test
– Reset reminders
Every 120,000 mi (192,000 km) – Inspect/replace vacuum pump for brake booster (varies by production region)
– Replace engine oil and filter
– Rotate tires
– Inspect wiper blades, brake components
– Check floor mat
– Road test
– Reset reminders

For more granular details, consult your owner’s manual or your local Lexus service center.


How Our App Supports 2020 Lexus RX 350 Owners

Managing a modern luxury SUV is much easier with a car management tool like Car AI. Here’s how this app streamlines Lexus RX 350 ownership and helps address common issues:

  • AI Car Assistant: An intelligent chatbot offers personalized maintenance tips, explains dashboard warnings, and provides answers tailored to your RX 350—no more guessing or poring over manuals.
  • Intelligent Service Reminders: Never miss a vital maintenance milestone with automated scheduling aligned with your manufacturer’s (Lexus) recommendations.
  • Repair & Expense Tracking: Log every service, repair, and fuel stop. Having your complete history at your fingertips supports transparency and enhances resale value.
  • Recall and Safety Alerts: Instantly receive notifications about recalls—like the airbag sensor and fuel pump issues—ensuring you can act quickly to protect your safety and investment.
  • Issue Logging: Experience a new rattle, strange noise, or performance hiccup? Log symptoms as they surface so you can discuss trends with your mechanic and stay ahead of potential problems.

Take control of your Lexus RX 350’s health and enjoy all the comfort and security it offers. Download our app now for a simplified, modern car care experience.


Conclusion

The 2020 Lexus RX 350 stands out for its luxury and reliability but, as with any vehicle, awareness of specific common issues—from safety system recalls to electrical gremlins—is crucial. Adhering to a thorough, regular maintenance schedule prevents small problems from escalating and preserves the premium driving experience you expect.

Being proactive is the most effective form of vehicle care. With intelligent tools like Car AI, tracking services, logging repairs, and staying updated on recalls is easier than ever. Set yourself up for hassle-free Lexus ownership—download our comprehensive car management app today and drive with confidence every mile.

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