What are the most common problems with the 2021 Lexus RX?

The primary ownership concern is a critical safety recall for the front passenger airbag system, which requires confirmation of repair.

How many recalls does the 2021 Lexus RX have?

The 2021 Lexus RX currently has 2 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2021 Lexus RX a good buy used?

Verdict: Proceed with caution. The primary ownership concern is a critical safety recall for the front passenger airbag system, which requires confirmation of repair. Zero consumer complaints were logged, indicating a lack of widespread reported functional issues. A high TSB count suggests potential for other minor issues that may not warrant a recall but could affect owner satisfaction. The 3.5L V6 engine and 8-speed automatic transmission provide a smooth, predictable driving experience. Combined fuel economy is rated at 21 MPG, which is average for its class. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2021 Lexus RX?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2021 Lexus RX.

2021 Lexus RX Report

Known issues, recalls, running costs, and what to check before you buy.

Updated Jul 5, 2026Daniel Wilson2 Critical Recalls

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

The primary ownership concern is a critical safety recall for the front passenger airbag system, which requires confirmation of repair.
Zero consumer complaints were logged, indicating a lack of widespread reported functional issues.
A high TSB count suggests potential for other minor issues that may not warrant a recall but could affect owner satisfaction.
The 3.5L V6 engine and 8-speed automatic transmission provide a smooth, predictable driving experience.

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Overview

2021 Lexus RX

The 2021 Lexus RX offers a refined and comfortable ownership experience, characteristic of the brand. Its V6 engine provides smooth power delivery, and the all-wheel-drive system enhances all-weather capability. While Lexus is known for its dependability, this model year is marked by a significant safety recall related to the front passenger airbag system. Despite zero reported consumer complaints, this recall, coupled with a notable number of Technical Service Bulletins (TSBs), warrants careful inspection by prospective used car buyers.

Critical Failure Risk

The OCS sensor in the front passenger seat can develop a short circuit, preventing the front passenger airbag from deploying. This is a critical safety defect.

Early detection can help you avoid a $500-$1,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Recall Campaigns2

Service Bulletins9

Campaign counts apply to this model year, not your VIN's repair status. Check your VIN with NHTSA.

Full Recall History →

Owner Complaints

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

Watch-outs include high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Buyers seeking a comfortable and quiet luxury SUV with a reputation for solid build quality.

+3 more buyer-fit notes in the full report

Avoid if

Enthusiasts seeking an engaging driving experience or sharp handling.

+2 more buyer-fit warnings in the full report

2021 Lexus RX Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Regular
Seating Capacity: 5-7
Transmission: Automatic (S8)
Drivetrain: All-Wheel Drive
Body Style: Suv
EPA Combined MPG: 21

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Most Common Issues

1. Occupant Classification System (OCS) Sensor Failure

Most reported

Usage data observed

2. Electronic System Glitches

Usage data observed

See all common issues in the maintenance guide

First Service Interval

- Oil Change and Filter Replacement (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brake Linings and Rotors - Inspect Wiper Blades

Est. shop cost: $100 - $200

5,000 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist

Complete maintenance schedule (5 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

2 recall campaign details & remedy notes

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FAQ

Is the 2021 Lexus RX reliable?

The CarFocal Reliability Score for the 2021 Lexus RX is 8.0/10. Reliability score is 8.0/10. NHTSA recalls: 2. Owner complaints: 0.

How practical is the 2021 Lexus RX for daily use?

Practicality score is 6.1/10. Watch-outs include high fuel consumption. EPA combined economy is 21 MPG. 4 passenger doors are listed. Boot capacity is 453 litres.

What is the overall score for the 2021 Lexus RX?

The CarFocal Overall Score for the 2021 Lexus RX is 6.6/10. Overall score is 6.6/10 (Good). Confidence 55%. Maintenance 7.9/10. Practicality 6.1/10.

What does it cost to own and maintain a 2021 Lexus RX?

Based on Carfocal's data, First listed service: - Oil Change and Filter Replacement (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brake Linings and Rotors - Inspect Wiper Blades at 5,000 miles. Estimated first-year maintenance: $700 - $1,200. Repair prediction highlight: Occupant Classification System (OCS) Sensor (typical at 45,000 miles, estimated cost Min: $500 • Max: $1,000).

What engine is in the 2021 Lexus RX?

Engine specs list 6 • 3.5.

What transmission does the 2021 Lexus RX use?

According to CarFocal's specs for the 2021 Lexus RX, transmission is Automatic (S8). The paired drivetrain is All-Wheel Drive.

What is the combined EPA MPG for the 2021 Lexus RX?

EPA combined estimate is 21 MPG.

What driver assistance and safety features are available on the 2021 Lexus RX?

14 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Tire Pressure Monitoring System.

How many people fit in a 2021 Lexus RX?

According to CarFocal's specs for the 2021 Lexus RX, seating capacity is 5-7.

What body style is the 2021 Lexus RX?

According to CarFocal's specs for the 2021 Lexus RX, body style is suv.

What drivetrain does the 2021 Lexus RX use?

According to CarFocal's specs for the 2021 Lexus RX, drivetrain is All-Wheel Drive. Transmission is Automatic (S8).

Are there open safety recalls on the 2021 Lexus RX?

This model year has 2 official safety campaigns listed.