2018 Lexus RX.
The 2018 Lexus RX is one of the most reliable years by owner complaints: 22 complaints in its first 3 years and a Lemon Index of 19, where 100 is the average car. Owners complain most about fuel or ev drive system, it has 1 recall, and it gets 21 to 30 mpg combined. The best Lexus RX year is 2014.

Before you buy. What matters most for this car.
How serious. Out of 47 owner complaints, owners reported:
Every Lexus RX year. 2018 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 6K to 20K miles on the car (17 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
Recalls 1
- fuel system, gasoline 2020
Toyota Motor Engineering & Manufacturing (Toyota) recalled certain 2018-2019 4Runner, Highlander, Camry, Land Cruiser, Sequoia, Sienna, Tacoma and Tundra, and Lexus RC 300, RC 350, GS 350, GX 460, IS 300, LC 500, LS 500,…
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems Lexus told dealers about
Lexus sent dealers 190 repair notes for this car. The ones about its biggest problems:
- To minimize battery discharge during transportation and storage, the D/C Cut Fuse (10A) has…
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Government investigations
- ClosedPedestrian alert sounds2023
NHTSA looks into a problem when enough owners report it. Many end in a recall.
Safety

Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| Lexus RX350 SUV AWD | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★☆ |
| Lexus RX350 SUV FWD | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ |
| Lexus RX350L SUV AWD | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ |
| Lexus RX350L SUV FWD | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ |
Fuel cost and engines
About $2650–3050 a year in fuel (EPA estimate). Engines: 3.5L 6-cyl.
In owners' words
Nothing yet; this is a precautionary complaint to be notified asap when replacement is available
2018 Lexus RX owner · NHTSA complaint 11325725
More owner reports
Hesitation upon acceleration. The engine does not respond in a linear manner when pressing the gas pedal.
NHTSA complaint 11150133
Quick answers
Is the 2018 Lexus RX reliable?
Yes, it is one of the most reliable by government complaints. It drew 5.3× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 19; 100 is average, lower is better). The best Lexus RX year by this measure is 2014.
What are the most common 2018 Lexus RX problems?
In owner complaints to the government, the parts named most are fuel or ev drive system (32%), transmission & drivetrain (23%) and engine (18%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2018 Lexus RX have?
1 safety recall (latest: fuel system, gasoline). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2018 Lexus RX get?
21 to 30 mpg combined, depending on the engine (EPA estimate).
Is the 2018 Lexus RX safe?
NHTSA gave it 5 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
Does the 2018 Lexus RX have transmission problems?
Transmission and drivetrain issues make up 23% of its owner complaints.
How much does the 2018 Lexus RX cost in fuel a year?
About $2650 to $3050 a year, by the EPA's current estimate.
What engines does the 2018 Lexus RX have?
3.5L 6-cyl.
What Lexus RX year is better than the 2018?
By owner complaints per car sold, the best recent years are 2014, 2011 and 2012.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works