Most common 2018 Lexus RX problems
Share of the 26 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Lexus RX complaints by model year
Best RX years: 2012, 2013, 2014. Years to avoid: 2023, 2024, 2021, 2022, 2025. Compare all years →
What 2018 Lexus RX owners say
Brakes
1. At [redacted] on [redacted], I was pulling into my gym's parking lot, when I stepped on the break to park my car, instead of stopping, the car accelerates rapidly and crashed through the other side of the sidewalk where there were light pole and cement walls, throwing me forward and backward with seat belt on, I was in total shock! 2. My insurance sent a field inspector to the body shop 2X in hope to repair my car but ended up declaring it a Total Loss. 3. Lexus said they would send a field tech to get the EDR (Event Data Recorder) data from my 2018 Lexus RX350 within 30 days, but the results won't be available for 30-45 days after that. Lexus's slow response to this accident concerns and disappoints me b/c it was a serious crash that Lexus should treat it seriously and promptly. 4. …
Lexus 2018 Rx450hl is known to have issue with brake actuator. A faulty brake actuator causes the car to fail sudden stop. It's definitely a safety issue. Lexus have technical service information bulletin(tsib) for this issue since 2019. They never contact the owner to replace the faulty part. So if the car is under warranty they will fix the problem with no cost. But if the warranty pass the threshold, they are charging the costumer 3.5k to replace it. It's an absolute horrible business practices. This part is a manufactured defect and it's a safety issue.
Engine & cooling
This car just send me a warning light last night about the all wheel drive system and issues about the engine, I was in the dealer this morning and I tell them the problem with the car but they was charging me for everything and left the lexus repair shop I work in my car and this not supposed to be happen I care of my car really good but now I hace to stop working because all this issues with the car. Now the car just stop working and I'm stock in middle of the city without another way to work and I don't have money for nothing. Please help me!
Car dead stopped two times in the middle of roads. No warning. No signal. Just hard stopped.
Electrical system
This car just send me a warning light last night about the all wheel drive system and issues about the engine, I was in the dealer this morning and I tell them the problem with the car but they was charging me for everything and left the lexus repair shop I work in my car and this not supposed to be happen I care of my car really good but now I hace to stop working because all this issues with the car. Now the car just stop working and I'm stock in middle of the city without another way to work and I don't have money for nothing. Please help me!
Car displaying parking brake malfunction and and cruise control malfunction intermittent when using the parking break, seem that TSB (T-SB-0168-19) was open for Camay from 2018 to 2020 exhibiting the same issue but not for this car. This a safety concern since parking brake becomes disable, this issue resets after restarting the car again.
2018 Lexus RX engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.5L 6-cyl hybrid | CVT | AWD | 31 / 28 / 30 |
| 3.5L 6-cyl | 8-speed automatic | FWD | 20 / 27 / 23 |
| 3.5L 6-cyl | 8-speed automatic | AWD | 19 / 26 / 22 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2018 Lexus RX a good car?
Based on 26 owner complaints filed with NHTSA, the 2018 RX rates use caution: 2.2× as many complaints as a typical year of the RX at the same age. It is one of the RX years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2018 Lexus RX?
The brakes — 6 complaints, 23% of all complaints for this model year. Next are the engine & cooling (4) and electrical system (3).
How many recalls does the 2018 Lexus RX have?
NHTSA lists no recalls for the 2018 Lexus RX. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Lexus RX?
The best years by complaints, compared at the same age, are 2012, 2013 and 2014. Years to avoid or approach with caution: 2023, 2024, 2021, 2022 and 2025. See the full Lexus RX years comparison.
At what mileage do 2018 Lexus RX problems happen?
The median mileage reported in complaints is about 43,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.