2012 Lexus RX.
The 2012 Lexus RX is one of the most reliable years by owner complaints: 18 complaints in its first 3 years and a Lemon Index of 17, where 100 is the average car. Owners complain most about speed control, it has 1 recall, and it gets 20 to 29 mpg combined. The best Lexus RX year is 2014.

Before you buy. What matters most for this car.
How serious. Out of 48 owner complaints, owners reported:
Every Lexus RX year. 2012 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 11K to 76K miles on the car (34 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
- brakes 2014
In the affected vehicles, the brake system contains a brake actuator that adjusts the fluid pressure of each wheel cylinder.
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 267 repair notes for this car. The ones about its biggest problems:
- While a vehicle is in inventory, the battery is subject to conditions that can reduce its…
- The purpose of this service bulletin is to provide information regarding the installation of…
- The purpose of this bulletin is to provide precautions to follow when installing an automatic
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 RX450h SUV AWD | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ |
| Lexus RX450h SUV FWD | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ |
Fuel cost and engines
About $2750–3200 a year in fuel (EPA estimate). Engines: 3.5L 6-cyl.
Quick answers
Is the 2012 Lexus RX reliable?
Yes, it is one of the most reliable by government complaints. It drew 5.9× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 17; 100 is average, lower is better). The best Lexus RX year by this measure is 2014.
What are the most common 2012 Lexus RX problems?
In owner complaints to the government, the parts named most are speed control (56%), transmission & drivetrain (11%) and electrical (11%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2012 Lexus RX have?
1 safety recall (latest: brakes). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2012 Lexus RX get?
20 to 29 mpg combined, depending on the engine (EPA estimate).
Is the 2012 Lexus RX safe?
NHTSA gave it 4 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
At what mileage do 2012 Lexus RX problems start?
Half of the owners who gave a mileage reported the problem between 11,000 and 76,600 miles. The middle report was at 31,100 miles, from 34 complaints.
Does the 2012 Lexus RX have transmission problems?
Transmission and drivetrain issues make up 11% of its owner complaints.
How much does the 2012 Lexus RX cost in fuel a year?
About $2750 to $3200 a year, by the EPA's current estimate.
What engines does the 2012 Lexus RX have?
3.5L 6-cyl.
What Lexus RX year is better than the 2012?
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